Open Source Startups funded by Y Combinator (YC) 2024

GitLab is the first single application for the entire DevOps lifecycle. Only GitLab enables Concurrent DevOps, unlocking organizations from the constraints of today’s toolchain. GitLab provides unmatched visibility, radical new levels of efficiency and comprehensive governance to significantly compress the time between planning a change and monitoring its effect. This makes the software lifecycle 200% faster, radically improving the speed of business. GitLab and Concurrent DevOps collapses cycle times by driving higher efficiency across all stages of the software development lifecycle. For the first time, Product, Development, QA, Security, and Operations teams can work concurrently in a single application. There’s no need to integrate and synchronize tools, or waste time waiting for handoffs. Everyone contributes to a single conversation, instead of managing multiple threads across disparate tools. And only GitLab gives teams complete visibility across the lifecycle with a single, trusted source of data to simplify troubleshooting and drive accountability. All activity is governed by consistent controls, making security and compliance first-class citizens instead of an afterthought. Built on Open Source, GitLab leverages the community contributions of thousands of developers and millions of users to continuously deliver new DevOps innovations. More than 100,000 organizations from startups to global enterprise organizations, including Ticketmaster, Jaguar Land Rover, NASDAQ, Dish Network and Comcast trust GitLab to deliver great software at new speeds.

CoreOS is part of the Red Hat family. A leader in the open source community and an innovator of open source projects, CoreOS creates and delivers critical components for containerized applications that help fuel broad adoption of secure, scalable and resilient infrastructure. The team maintains several open source projects, including: Container Linux: the secure automatic updating OS; and etcd, the distributed data store for Kubernetes. Join us at https://coreos.com/ and @CoreOS on Twitter.

Mattermost provides secure collaboration for technical and operational teams that work in environments with complex nation-state level security and trust requirements. We serve technology, public sector, national defense and financial services industries with customers ranging from tech giants, to the world’s largest banks, to the U.S. Department of Defense and governmental agencies around the world. Our self-hosted and cloud offerings provide team messaging, file sharing, integrations, audio and screen share, workflow automation and project management on an open source platform deployed by the world’s most secure and mission critical organizations. We co-build the future of collaboration with over 4,000 open source project contributors who’ve provided over 30,000 code improvements towards our shared product vision, which is translated into 20 languages.

Protocol Labs is an open-source research, development, and deployment laboratory. Our projects include IPFS, Filecoin, libp2p, and many more. We aim to make human existence orders of magnitude better through technology. Some of our projects. IPFS makes the web work peer-to-peer. IPFS is a protocol for storing, addressing, and transferring data, designed to replace HTTP in many contexts. IPFS uses content-addressing to uniquely identify and link to information. IPFS is one of the leading protocols of Web3, crypto, and the decentralized web movements. IPFS serves millions of end users and tens of thousands of developers. It powers the websites and applications of small startups, large enterprises, and even blockchains. Filecoin is a decentralized storage network, designed to store humanity's most important information. Filecoin is a cryptocurrency incentivized decentralized market, where storage providers earn filecoin tokens for renting out storage space. (Think airbnb for cloud storage). Filecoin is one of the leading projects in the cryptocurrency/blockchain space.

APIs underpin the internet but are still painful to work with. They are often untyped, unstandardized, and out-of-sync across multiple sources of truth. Fern enables businesses to offer “Stripe-level” SDKs (client libraries) and Docs for their REST API. Inspired by internal tooling we saw at AWS and Palantir, we’re building Fern to let every engineering team offer easy-to-use and well-documented APIs. Founded in 2022, we’re less than 10 people, building open source, and backed by YCombinator. We work together in our office in the Williamsburg neighborhood of Brooklyn, NY. Our customers include Cohere, ElevenLabs, Pinecone, Webflow, and Merge.dev.

Building a modern alternative to Salesforce: https://github.com/twentyhq/twenty

Hatchet abstracts away the infrastructure for managing task queues and message brokers, so you can focus on writing your background task and workflow logic. With Hatchet, you can run slow OpenAI requests in the background with async tasks, chain complex tasks together into workflows, and set retries and timeouts to recover from failure.

Titan is an open-source toolkit for data compliance. Data engineering teams trust Titan to simplify access management, ensure compliance, and minimize risk.

SST is an open-source framework that makes it easy to build modern full-stack applications on your own infrastructure.

Firezone connects your workforce to the computing resources they need, wherever they are, securely. Unlike traditional VPNs, Firezone uses a least-privileged approach to access control known as Zero Trust Access. Connect your identity provider and define granular policies in minutes, then rejoice in the IT support requests you won't receive due to our lightweight, WireGuard-powered clients which work great on all platforms.

Apollo GraphQL is the leader in open source and commercial GraphQL technologies. Apollo’s open-source GraphQL client, server, and gateway are downloaded more than 17M times per month and used in production by over 30% of the Fortune 500. Customers like Walmart, Expedia, Glassdoor, Audi, and PayPal, use the Apollo Graph Platform to unify their GraphQL efforts, collaborate on graph development, and safely iterate on their graphs. Based in San Francisco, Apollo is backed by Insight Partners, Andreessen Horowitz, Matrix Partners, Trinity Ventures, Y Combinator and individual investors.

OpenFoundry is an open source platform that helps engineers build, deploy, and scale their open source AI stack 10x faster. Ship your AI stack with just one line of code. You could think of us as an open source alternative to Hugging Face. Learn more and check out a demo of this in action in our Launch YC post: https://www.ycombinator.com/launches/KhY-openfoundry-developer-infrastructure-for-open-source-ai

Airbyte is the leading open data movement platform that empowers data teams in the AI era by transforming raw data into actionable intelligence. With the largest catalog of over 350 connectors, it offers low-code, no-code, and AI-powered connector development, and provides flexible deployment options across self-hosted, cloud, and hybrid environments. https://github.com/airbytehq/airbyte

Add a line of code and get thousands of icons and social logos on your website instantly. Easy to set up, easy to use, and crazy powerful. Let us take care of the icons so you can get back to the important stuff. Font Awesome. Go make something Awesome.

Daily is real-time voice, video, and AI for developers. Our cross-platform SDKs and global infrastructure enable ultra-low latency, highest quality experiences for developers building real-time voice and video AI agents. Our platform also supports integration of traditional voice/video calls, in addition to AI agent experiences.

Alokai is an award-winning and pioneering global technology startup setting a new standard in online shopping. Alokai is a Frontend as a Service solution that simplifies composable commerce. It connects all the technologies needed to build and deploy fast & scalable ecommerce frontends.Founded in 2021, Alokai (prev. Vue Storefront) is a best-in-class composable commerce solution and market-leading Frontend as a Service currently used by 3000+ live stores around the world. With a remote, global team of 100+ people and offices in San Francisco and Warsaw, Poland, customers include Movado, SPAR Inc., or Brompton Bikes. Supported by 130+ partners and a community of 10,000+ developers, Alokai and its leaders are recipients of several industry awards, including Europe’s top tech startup prize and recognition from Forbes magazine.

The leading open-source AI code assistant. You can connect any models and any context to build custom autocomplete and chat experiences inside the IDE

MindsDB is a fast-growing AI startup headquartered in San Francisco, California. As a leading innovator bringing AI and Data together, our passion is empowering companies to easily build AI capabilities that can Think, Understand and Orchestrate: enabling teams to move from prototyping & experimentation to production in a fast & scalable way. MindsDB was founded in 2017 by Adam Carrigan and Jorge Torres, inspired by Ian M. Banks's Culture series, in which super AI systems called Minds collaborate with other forms of life to accomplish incredible goals. Starting as an Open-Source project, MindsDB has grown to be one of the most widely used AI-Data platforms in the world, with a growing community and more than 700 contributor developers from every corner of the globe. We are backed with over $55M in funding from Mayfield, Benchmark, YCombinator, and nVidia. MindsDB is also recognized by Forbes as one of America's most promising AI companies (2021) and by Gartner as a Cool Vendor for Data and AI (2022).

We build the tools companies need to provide performant and scalable authorization for their applications. We’re founded by 3 successful entrepreneurs with expertise in enterprise software, most recently as leaders at Red Hat. Jake and Joey met on the APIs team at Google in 2010. They went on to found Quay, where Jimmy joined as their first hire. Over the past decade, they’ve changed the landscape for building and deploying software.

Lago is the open-source alternative to Stripe, with a laser focus on transparency, metering, developer experience, and composability: addressing complex pricing grids and business workflows. Their team previously built and scaled the home-grown billing system of Qonto (a $5B Fintech in Europe), from pre-launch to the tens of millions of MRR.  Lago is the leading open-source repository and community in this space.

Skyvern helps companies automate browser based workflows using LLMs and Computer Vision, fully automating manual workflows and replacing brittle or unreliable scripts. Examples include: 1. Automating materials procurement from commerce websites 2. Completing complex multi-step workflows (ie getting an insurance quote from Geico.com) 3. Automatically logging into portals and downloading invoices 4. Navigating legacy content systems to do data extraction or data entry

refine is an open-source, headless React framework for rapidly building enterprise web applications. It eliminates many repetitive tasks like ➡️ CRUD operations ➡️ State management ➡️ Routing ➡️ Authentication ➡️ Access Control ➡️ i18n and saves days of development time. So far, thousands of great projects have been built by 15,000+ monthly active refine developers. Use cases are ranging from admin panels, dashboards, and internal tools to B2B solutions and complex SaaS interfaces. refine is backed by a strong community featuring 16K GitHub stars ⭐️, 180+ contributors and 2,500 Discord members. Thanks to it's unique "Headless UI" approach, refine works with any custom design. It has also ready-made integrations with 4 most popular UI frameworks: Ant Design, Material UI, Chakra UI and Mantine. refine is totally backend agnostic and it can connect to 15+ backend services out-of-the-box, incl. custom REST & GraphQL API's. With refine, developers always have 100% control over their projects as they build, style and deploy the way they like.

Open source voice AI. Check out our docs for more information: https://docs.vocode.dev

Tiptap is a suite of open source content editing and real-time collaboration tools for developers building apps like Notion or Google Docs. It’s used by thousands of businesses worldwide, including LinkedIn, GitLab, Axios, and Anthropic.

Artie is software that streams data from databases to data warehouses in real-time. Today, most companies run their ETL process every few hours or overnight, so their data warehouse is always out of date; with Artie, the warehouse always has live production data.

Infracost shifts cloud costs left and makes FinOps proactive. It sits in the engineering workflow (CI/CD), and shows the cost impact of code changes (IaC) before the code is shipped to production. This catches costly mistakes before any money has been spent. It also checks to make sure all resources are tagged with your set tagging policy, and runs checks on the code against our FinOps policy packs, ensuring best practices are followed (e.g. GP2 volumes should be GP3). This creates a cost-aware engineering culture.

Onyx is the AI assistant that connects to all your company tools and docs and makes finding any piece of information a breeze. Think ChatGPT, but with access to all your companies documents (only the ones you have access to, of course :P). Or, if you know Glean, you can think about it like an open-source Glean. Concerned about your data? Don't worry we're open source (MIT license) and built to be self-hosted. You can setup Onyx in your VPC in less than 30 minutes - no packets ever have to leave your cloud. Check us out on Github: https://github.com/onyx-dot-app/onyx!

PostHog helps engineers build better products. We provide everything they need to make sure they are building something that people want. This means - product analytics, session replays, feedback tools, feature flags, experimentation, and a datawarehouse (with SQL) with one click data imports from the places you use. PostHog can be deployed to the cloud, or self-hosted on existing infrastructure, removing the need to send data externally. PostHog was created as an open source project during Y Combinator's W20 cohort and had the most successful B2B software launch on HackerNews since 2012 - with a product that was just 4 weeks old. Since then, more than 40,000 companies have installed the platform, we're doing $MMs in revenue, and have a community of 120K developers - 97% driven by word of mouth. Despite the tech market, we're default alive and doing better than ever! We've been averaging ~10% monthly revenue growth, we are [default alive](http://www.paulgraham.com/aord.html), and we didn't raised a huge / now-overpriced round in 2021. While others are focused on layoffs and struggling to grow into huge valuations, we're focusing on an awesome product for end users, hiring (a handful of) exceptional team members and seeing fantastic increases in revenue as a result. Check out posthog.com/careers if you want to be part of this journey.

At Reworkd, we're working on multimodal LLM agents that serve as the simplest way to extract web data at scale. Customers come to us with lists of 100s to 1000s of websites along with a data schema. Our agents traverse these websites, understand their structure, and generate code to extract data from them. We've been working on LLM agents since their inception and have received over 30k stars on GitHub and 1M+ users across previous agent products. If you're interested in our pilot program, shoot us an email!

Infisical is an open-source platform to manage secrets and configs across your team and infrastructure. Infisical stores your secrets and injects them back into your development workflow, CI/CD pipelines, and cloud infrastructure. It comes with secrets versioning, point-in-time recovery, audit logging, automatic secret rotation capabilities, and more.

Traceloop monitors the quality of your LLM application in production. It provides you with alerts, insights and gradual rollout capabilities to confidently deploy changes to your prompts and model configurations.

Reflex is the open-source framework empowering Python developers to build web apps faster. Build both your frontend and backend in a single language, Python (pip install reflex), with no JavaScript or web development experience required. Build anything from internal data and AI apps to large public-facing web apps and deploy with a single command (reflex deploy). Reflex provides high-level UI components, easy deployment and AI agents to create, edit, and deploy apps 10x faster than traditional web development while also remaining extensible through custom components that can fully leverage JavaScript's expressivity. Our mission is to simplify web development by creating an ecosystem of open-source tools and hosted services that enable Python developers to build web apps faster without compromising on customizability, flexibility, or performance. https://github.com/reflex-dev/reflex

Matano is a modern SIEM, built for cloud-first security teams. It replaces traditional SIEM databases like Splunk or Elastic with a cybersecurity platform built on top of a cost-effective Security Data Lake.

Create durable background jobs directly in your codebase with no timeouts. Previously, the founders built JSON Hero, an open source JSON viewer that is currently used by more than 35k developers a month. Eric was CTO of Code School, an early code learning platform that was acquired in 2015. Matt created two iPad apps that won Apple’s App of the Year.

Open-source alternative to FullStory and LogRocket. Self-hosted for a complete control over your data and costs.

Million is an APM that makes websites fast, automatically. We use AI to automatically find performance issues and write code to fix them.

Quack AI tackles the slowdown in project delivery often faced by expanding dev teams. We bring development teams into sync, effortlessly aligning code with project expectations. Take the example of the backend team now adopting the syntax of Python 3.11 for asynchronous tasks. Our deep learning model swiftly interprets these updates and embeds them into every developer's keystroke with our VSCode extension, significantly reducing code review iterations and shaping a cohesive & adaptable coding identity.

Goodbye Slurm, Hello Konduktor. Trainy Konduktor is a software platform for AI teams to schedule workloads with priority, control resource allocation, and improve GPU reliability. With Konduktor, teams submit jobs to a healthy pool of GPUs, assign job priority with a simple user interface, and never worry about hardware faults again.

Khoj is an open-source, personal AI application that helps you get answers to your questions, whether they be in your own notes or online. You can use it to get answers that are grounded in reality, references included. Rather than spending an hour researching collating information from different sources, have Khoj do it for you, easily and quickly. Khoj can also generate images and understand your voice via TTS, so you can work hands-free. With our specialized agents, you can get deeper assistance on topics related to Health, Tutoring, Therapy, or something else altogether. Because we're open-source, you can always choose to self-host Khoj on your own machine for more privacy. We've previously built products for Cortana AI at Microsoft and scaled them from 0 to 20M daily active users.

Unsloth helps builders create custom models better & faster. We're developing the all in one solution to help you create highly-accurate custom models 30x faster with 90% less memory use. With over 15 million monthly model downloads and 15K GitHub stars, our mission is to make fine-tuning and open-source the best it can be!

We are building a fully local opensource software engineer. Software thrives on opensource tools and it's only right that this technology be built for all to use.

Customers expect your SaaS to integrate with all the software they use. With Nango, you ship integrations your customers love, fast. Leverage hundreds of pre-built integrations and unlimited customization.

SuperTokens is building open source authentication (as an alternative to Auth0, Firebase and AWS Cognito). Add secure, hassle free authentication to your app in 1 day. We enable startups to launch quicker and focus on their core product offering 1. We're easier to implement as we take a modular approach - making it possible to pick only the features you need for your use case. This means you need not worry about complications associated with other features (eg: SSO and OAuth if you don’t need it) and this in turn makes it easier to implement and manage SuperTokens. 2. Developer's can own and manage their user's data. 3. SuperTokens can be run on your premise for free and also has a generous hosted tier for those who dont want to manage it themselves. SuperTokens is being used by hundreds of developers across the globe.

Jitsu is the fastest, most durable way to collect event data from every source - web, app, email, chatbot, CRM - into your data warehouse. 100% open-source. Purpose built, secure and ready in minutes.

Lightdash is an open-source Looker alternative. It's built on top of dbt and lets users centralise all their team's business logic in one place.

# Our Mission 🎯 At Shuttle, we’re on a mission to revolutionise developer experience for building web apps. Everything we do is about crafting an exceptionally simple, satisfying and effective way to do cloud development. We are open source community-driven and loved by thousands of engineers. Our vision: the ultimate platform to supercharge developers’ productivity. # About Shuttle 🚀 We are building the fastest backend development experience. [Shuttle](https://shuttle.rs/) is an open source cloud platform for developing and deploying apps with zero infra hassle. At [Shuttle](https://www.shuttle.rs/), we're on a mission to redefine the developer experience for building cloud applications. We want to empower the next generation of builders to make use of the latest and greatest cloud technologies, by crafting the simplest, fastest, and most enjoyable development experience. Shuttle is open source and our [Infrastructure from Code](https://www.shuttle.rs/blog/2022/05/09/ifc) framework paired with our cloud platform eliminates the infra hassle and accelerates app development and deployment. This is a game-changer for developer productivity - think Vercel for the backend. We have thousands of developers in our community incl. engineers from some of the top companies and have just launched Shuttle beta. We’re backed by some of the best investors in the world, including Y Combinator, HorizonVC, Abstraction Capital, Global Founders Capital, Founders of Segment, Sendbird, Head of Product at DataDog and other successful founders and executives. # Working With Us 😎 We’re a growth mindset company. We’re honest, open-minded, driven, and ambitious and we are only looking for people who share these qualities with us. We care. About each other and about our mission. We are building a culture that brings out the best in people and we truly believe that the company you work at should be the launch pad for unleashing your full potential. We keep a light and fun work environment, without unnecessary stress or anxiety. Yet we hold ourselves to very high standards and keep pushing the bar up. Continuous improvement is a must if you don’t want to be left behind. Mistakes are OK, not being willing to learn from them is not OK. Collaboration is at the core of what we do and we treat each other with respect and kindness - supportive, yet firm and ready to provide accountability where needed. We’re early stage so expect many opportunities to shape the company’s future. The best ideas win. We maintain a hacker mentality - no problem is unsolvable with the right mindset. As a team, we work on hard challenges under tight constraints and are constantly pushed out of our comfort zones - if reading this excites you, let’s talk. # Perks 🎁 - Remote-friendly, flexible working hours and workdays - Flexible holidays and paid time off - Mental and physical health stipend - Educational and self-development budget - Support for attending and presenting at relevant conferences - Health insurance - Awesome work-from-home setup & equipment - Regular company off-sites - Regular remote-friendly socials (games and more)

QuestDB is a high-performance, open-source database for time series data. It focuses on fast ingest, blazingly fast queries and superior developer experience with SQL and open formats. QuestDB is designed from the ground up to operate as close to the hardware as possible -- eliminating ingestion bottlenecks and lowering overall hardware requirements. QuestDB powers the infrastructure for companies in Financial Services, Crypto/Web3, Space Exploration, and Energy/Renewables.

SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. Open source Application Performance Monitoring (APM) & Observability too

Docker is the world’s leading software container platform. Developers use Docker to eliminate “works on my machine” problems when collaborating on code with co-workers. Operators use Docker to run and manage apps side-by-side in isolated containers to get better compute density. Enterprises use Docker to build agile software delivery pipelines to ship new features faster, more securely and with confidence for both Linux and Windows Server apps.

Netmaker is an open source virtual networking platform based on WireGuard. With Netmaker, you can bridge, clouds, the edge, IoT devices, and Kubernetes clusters. Netmaker provides the fastest possible virtual networks, with an average speed 10x faster than standard alternatives. Think of Netmaker like your VPC for distributed systems.

Gauge is solving the monolith/microservices dilemma. We’re helping enterprises break large codebases into small pieces. We first met as roommates in college, and in the decade since we've both worked exclusively at startups, including multiple founding engineering roles. We ran into this problem time and time again as our startups began to scale. We're now working with a wide range of companies, including a number of multi-billion $ enterprises. Our open source tooling also has ~1k stars on GitHub, over 400k downloads, and is in use by Nvidia. In the short term, Gauge is building tools to modularize the monolith. Long term, Gauge is building a way to deploy a single codebase as a set of independent services, giving you the scalability of microservices alongside the simplicity of monolithic development.

Supabase is the easiest way to get started with Postgres. Each project within Supabase is an isolated Postgres cluster, allowing customers to scale independently, while still providing the features that you need to build: instant database setup, auth, row level security, realtime data streams, auto-generating APIs, and a simple to use web interface. We are 100% remote.

Mem0 provides a memory layer for LLM applications, enabling them to remember and learn from user interactions over time.

LunaTrace isn't just another security scanner that blasts you with vulnerabilities. LunaSec has developed a hosted Open Source dependency security tool that is smarter, faster, and quieter than any other. It's backed by a team of security experts who monitor the latest attacks, write remediation guides, and help you patch in hours instead of weeks. In under 2 minutes, for free, you can generate your own vulnerability report to gain insight into the security + compliance of your software by clicking here: https://lunatrace.lunasec.io/ Email us at: contact@lunasec.io Our GitHub: https://github.com/lunasec-io/lunasec

Mito is Cursor for data science. We’re building an AI enabled IDE to 10x the productivity of data people. Data analysts use Mito to automate reports without relying on internal engineering resources. Mito is used by thousands of business analysts, data scientists, and automation engineers at some of the world's largest banks, private equity shops, and consulting firms. Open source is key to our enterprise sales strategy. Mito is open source and built on top of Jupyter. That means getting started with Mito is as simple as running `pip install` and doesn't require enterprises to manager new infrastructure. Check us out at: https://www.trymito.io/

InfluxData, the creators of InfluxDB, delivers a modern Open Source Platform built from the ground up for analyzing metrics and events (time series data) for DevOps and IoT applications. Whether the data comes from humans, sensors, or machines, InfluxData empowers developers to build next-generation monitoring, analytics, and IoT applications faster, easier, and to scale delivering real business value quickly. Based in San Francisco, InfluxData customers include Autodesk, Cisco, eBay, and Coupa. Visit https://www.influxdata.com.

Opslane speeds up incident resolution by automating work that is performed by short staffed SRE teams. We do this by stitching together relevant context (logs, metrics, traces, code changes and runbooks) to help on-call engineers figure out what's going on.

The Sails Company was founded by the original author and maintainers of the Sails framework. In addition to free and open-source software, The Sails Company offers a full-service web & mobile studio and professional support for the tools we maintain.

Keep is an open-source AIOps platform. Keep acts as a single pane of glass to all your alerts from any monitoring tool and helps you turn 1000s into just 10s of meaningful alerts.

HyperDX assists engineers in resolving production bugs more quickly with simple workflows that take you from alert to resolution. You can get set up in a matter of minutes and correlate debug telemetry all in one place, including logs, metrics, traces, and browser session replays, allowing you to resolve issues faster than ever before. HyperDX is open source and built on top of Clickhouse and S3, so customers can enjoy ten times the savings when compared to traditional vendors like Datadog.

We provide a simple API for creating, storing, versioning, and collaborating on multi-modal AI datasets of any size. With Activeloop's open-core stack, you can rapidly transform and stream data while training models at scale. Deep Lake powers foundational model training by acting as a vector database with significant benefits, such as (1) the ability to use multi-modal datasets to fine-tune your own LLM models, (2) storing both the embeddings and the original data with automatic version control, so no embedding re-computation is needed (3) truly serverless service with no vendor lock-in. How cool is that? GitHub loves us - we're one of the fastest-growing libraries there, and we're used by little-known companies like Google, Waymo, and Intel. No big deal. Our founding team hails from places like Princeton, Stanford, Google, and Tesla, and we're backed by Y Combinator & other Silicon Valley heavyweights. Activeloop is hiring, and we want you! Check out our open roles on our YC page and join the fun. 10-min demo: https://activeloop.wistia.com/medias/aibvo0dst2 Whitepaper: https://www.deeplake.ai/whitepaper

Open source mobile marketing automation and customer onboarding platform. Alternative to braze customer io / iterable / pendo / appcues . Segment and engage your users with complex scheduled push notification, sms and email campaigns.

Enso Analytics is a self-service data prep and analysis platform for data teams. It transforms complex processes into repeatable workflows, saving users 7 hours weekly. With full configuration visibility, seamless environment transitions, and real-time updates, Enso caters to both non-programmers and developers, offering cloud and desktop options. DEMO: https://www.youtube.com/watch?v=OBrYjpgCSEE

Cerulion is an open source operating system for robots built by 2 MIT robotics PhDs. Companies like Amazon Robotics and Boston Dynamics AI Institute are using us to develop faster and ship more reliable robots than with ROS. With up to 1000x improvements in communications performance over state of the art, Cerulion is enabling the next generation of embodied AI.

Chaos Genius is a DataOps Observability platform for Snowflake. Enable Snowflake Observability to reduce Snowflake costs and optimize query performance.

At Okteto, we are working hard at creating the next-generation development experience for teams of all sizes. Have you ever seen how long it takes a developer to set up everything they need before working on a feature? We are fixing that. We want developers to focus on building value for their teams instead of wasting time setting up local environments or trying to debug "production only" issues.

Infrastructure for search teams building retrieval and RAG. Trieve combines search language models with tools for tuning ranking and relevance. Building excellent search is difficult and can take months to implement then even more time to maintain. Trieve offers production-ready infrastructure that works out of the box to help search teams build adjustable AI search and RAG into their products. With tools for custom models, relevancy weighting, date-recency biasing, semantic full-text hybrid search, recommendations, and more Trieve covers the full spectrum of what a team wants from their discovery infrastructure.

LaunchFlow is an open source command line tool that can deploy any application to AWS or GCP with a single command. The CLI configures cloud environments, permissions, release pipelines, and other infrastructure that distracts startups from their core product. The CLI pairs with a high-level Python SDK that lets users customize their cloud environments with minimal configuration—our users only maintain an average of 4 lines of configuration per application. Launch anything with 3 commands: 1. $ pip install launchflow 2. $ lf init 3. $ lf deploy

Frigade helps growth teams better activate and up-sell customers in-product. We combine React UI components such as <Tour />, <Checklist />, and <Announcement /> with a web app to easily power user targeting, content, orchestration, and more.

When the public cloud appeared migration was easy. Existing apps running on physical servers could just be moved to virtual machines running in the cloud. The cloud is now moving towards serverless, and serverless is not backward compatible. New tools need to be created and existing apps need to be rewritten. Webiny provides developers with everything they need to build those serverless apps. We are a 100% remote team.

We are building tools for programmatic video creation. Revideo, our open-source framework, lets you create video templates in Typescript and render them via an API. It also provides a React player component to display changes in the browser in real-time.

Browser Use allows developers to create state of the art web agents with a few lines of code. We currently stand at 89% on Web Voyager dataset, which is the best web agent you can actually use.

Glasskube is an Open Source Package Manager for Kubernetes. Kubernetes is highly fragmented, making it nearly impossible to deploy applications across multiple environments with current tooling. We help software companies sell to enterprises and deploy to private infrastructure, different cloud environments, and on-premises. The founders have been best friends for over 15 years, lived together in college, and even had a startup together. Philip was the CTO of a European Kubernetes-based company that was acquired in 2022.

Patched empowers development teams to build and deploy AI-assisted workflows that can autonomously complete post-code tasks like documentation, code reviews, and security patching. Our workflows can be customized using a visual builder and can be self-hosted with any AI model, enabling automation without compromising security, control, or compliance.

At the core of the company there is Lunatic, a runtime for developing low latency, robust and distributed networking applications. It can be used for web applications, game servers, video and voice chat, or other apps requiring low latency runtimes. Lunatic borrows many proven ideas from Go and Erlang, but also uses WebAssembly to make it easier targetable from existing languages, allowing teams to leverage already existing code and libraries.

*S19 and YCG F21* Engineering teams shouldn’t be in the dark when it comes to the performance of their mobile apps and user experiences. With our industry-leading mobile observability technology, Embrace aims to give SRE and DevOps teams better insight into what matters most – their users – by tying mobile performance data to backend observability insights. As the only user-focused, mobile-first observability solution built on OpenTelemetry, Embrace delivers crucial insights across both DevOps and mobile teams to illuminate real customer impact – not just server impact – to deliver the best app experiences. Customers like The New York Times, Marriott, Warby Parker, Masterclass, Home Depot, and Cameo love Embrace’s mobile observability platform because it makes extremely complicated and voluminous data actionable.

The Open Source and Extendable AI Code Editor: https://trypear.ai.

Ben and Jacob met in Calculus class in 10th grade, and tried founding a startup in high school — it didn’t go anywhere, but it taught them a ton. During high school, Ben lead the frontend team for the World Health Organization’s COVID-19 App Team. After high school, Jacob went to Apple and Ben went to college. When there was an opening on his team, Jacob had Ben apply, and Ben left UChicago to go work at Apple. They spent about 2 years at Apple as Senior Engineers in the Conversational Engineering Department, before leaving to found Freestyle. Freestyle is directly inspired by what they saw as their failures of the tech they worked with at Apple.

Traces, evals, prompt management and metrics to debug and improve your LLM application. Onboard via https://langfuse.com Langfuse helps you build and improve LLM applications across the entire lifecycle: - Develop: Observability, Langfuse UI & Prompt Management - Monitor: Traces, Analytics, Metrics & Evaluations - Test: Experiments, Releases & Datasets We are hiring: https://langfuse.com/careers

Leverage AI to extract data from PDFs, CSVs, images, and emails instantly.

OpenInt helps teams ship product integrations in hours, not weeks, using no or low code. Read and write data using unified APIs or sync it straight to your database.

Replexica automates the localization process end-to-end. It produces authentic translations instantly and eliminates translation management and manual work. Our AI generates pull requests with translations when developers commit UI code changes, avoiding the typical back-and-forth with translation agencies. This helps teams do localization 100x faster, ship to production more often, without bottlenecks.

Helicone.ai is creating an advanced observability platform tailored for developers working with Large Language Models (LLMs). Our goal is to simplify and enhance the operational side of deploying these models, making it easier for developers to monitor, manage, and optimize their AI applications at scale. Helicone provides a unified view of performance, cost, and user interaction metrics for various LLM providers, like OpenAI, Anthropic, and LangChain, empowering developers to make their LLM deployments more efficient, reliable, and cost-effective. ### Key Features 1. **Centralized Observability**: Our platform captures and visualizes detailed logs and metrics across all LLM deployments. With tools for prompt management, performance tracing, and debugging, Helicone provides real-time insights into the inner workings of your LLMs. 2. **LLM Performance Optimization**: Helicone supports prompt experimentation, success rate tracking, and fine-tuning, allowing you to continuously improve response quality and efficiency. This level of insight makes it easier to deliver high-performing, cost-effective AI applications. 3. **Flexible Data Management**: We understand that data privacy is critical. Helicone supports deployment options for dedicated instances, hybrid cloud integrations, or self-hosted environments, allowing clients to maintain control over their data and ensuring compliance with privacy standards. ### Built for Developers and Data Scientists Helicone is designed to meet the needs of engineers and data scientists who require transparency and control over their LLMs. From chatbots to document processing systems, Helicone equips you with the insights needed to track costs, understand user interactions, and optimize outputs—all from one intuitive platform. By combining observability with LLM-specific insights, Helicone is redefining AI monitoring, empowering developers to deploy and scale their AI models with confidence.

Requestly helps developers build faster by intercepting, mocking, and testing API responses. No more waiting for backend developers, struggling with flaky staging environments, or fighting over API contracts. With 200,000+ active installs, Requestly is trusted by Google, Amazon, Workday, Indeed, and many other Fortune 500 companies.

The first version of RecipeUI was a viral project at Robinhood that reached 100% adoption from all engineering and QA teams. When an API broke, anyone from Frontend to QA to PMs could debug without relying on backend engineers

Zenbase helps developers focus on programming by automating prompt engineering and model selection. We’re core contributors of Stanford NLP’s DSPy, the #1 LLM optimization framework used by Meta, Microsoft, Google, among many others. But it's hard to use outside of academia. We're building the production version.

ParadeDB is an Elasticsearch alternative built on Postgres. We're modernizing the features of Elasticsearch's product suite, starting with real-time search and analytics.

Defog lets your business users query data in seconds, using everyday language. We are powered by SQLCoder – our state of the art open-source model that can search and visualise structured data (like SQL databases or Data Warehouses), and can be further fine-tuned and and deployed on-prem on your servers.

Flowise uses low-code approach that enable developers to manage the whole lifecycle of building LLMs apps in production. From protoyping, evaluation, to iterations.

UpTrain provides the most advanced LLMOps platform to ship AI confidently. It provides enterprise-grade tooling to easily evaluate, experiment, monitor, and test LLM changes, all while seamlessly collaborating with your team. Being OSS, UpTrain is readily customizable and can be hosted on your secure cloud environment, satisfying your data governance needs. 1. UpTrain provides high-quality scores over a variety of metrics (both LLM-based and classical NLP ones) as well as allows you to define custom ones to evaluate your full LLM pipeline comprehensively. 2. UpTrain runs root cause analysis to identify if it is a retrieval issue, if your context requires reranking, if the LLM is unable to utilize the context or if certain instructions are not being followed. 3. UpTrain leverages state-of-the-art techniques for automatic prompt optimization, automatic eval generation, finding common topics among failure cases, etc., to act as your LLMOps co-pilot.

Arroyo is a serverless stream processing platform built on top of the open-source Arroyo streaming engine. We allow companies to transform, filter, aggregate, and join their Kafka streams in real-time just by writing SQL. We charge purely based on usage, with no fixed costs or clusters to manage.

Formance Platform is building open-source infrastructure for the next wave of financial services. It enables fintech engineers to build and operate complex flow of funds, weaving together multiple payment rails with internal ledger accounts. github.com/formancehq/stack

Svix is the enterprise ready and open source webhooks service. Webhooks are a pain. Developers need to worry about deliverability, retries, monitoring and security. All of which are different for webhooks compared to the rest of the stack. We turn all of that into a simple API call. Svix is sending billions of webhooks for customers both large (Fortune 500) and small (startups), and is backed by Y Combinator, Andreessen Horowitz (a16z), Aleph, and founders and CTOs of companies such as Github, PagerDuty, Segment and Lookout.

Lantern is the easiest way to build AI applications using Postgres. We started Lantern because we believe AI is going to impact every single enterprise in every single industry. We want to allow every company to tap into their unstructured data to build better applications. With Lantern Cloud, developers have access to everything they need to build an AI application: embedding generation, vector compression, vector search, efficient indexing, and more. All on top of the database they already know, Postgres, and using infrastructure that scales to billions. Check out our code on Github: https://github.com/lanterndata/lantern

Large contracts with large companies usually require software companies to offer SAML SSO and SCIM. Implementing SAML SSO and SCIM yourself is pretty hard and not a good use of your time. We make it really easy to implement SAML SSO and SCIM in your product.

We’re on a mission to enable everyone to build reliable AI agents & AI applications. We're fully open source, and provide a unique integrated development & observability experience for those building anything in the AI space. This is the first step towards laying the foundations for Composable AI Systems; all AI systems need observability and introspection to be first class for them to be reliable. How? We're standardizing how people write python to express data, ML, LLM, & agent workflows/pipelines/applications with lightweight frameworks. So that no matter the author, it'll be easy to collaborate, connect, and importantly in one line integrate observability and datastore needs. This speeds up time to production and reduces TCO because code remains easy to maintain and your data flywheel stays manageable. So you can increase the top line & bottom line of your business by delivering on AI that is reliable. We've got two open source projects: - one focused on AI applications, called Burr (https://github.com/dagworks-inc/burr). - one focused on AI pipelines/workflows, called Hamilton (https://github.com/dagworks-inc/hamilton) see https://www.tryhamilton.dev Both Hamilton & Burr come with self-hostable UIs (+ enterprise & SaaS offerings). With a one-line code change, you get versioning, lineage / tracing, cataloging, and observability out of the box with Hamilton. With Burr you get tracing, observability and persistence in a single line addition.

Chatwoot is an open-source omnichannel customer engagement suite built as an alternative to Intercom, Zendesk etc. Chatwoot helps you to connect email, website live chat, social media handles, WhatsApp etc. and manage all your customer interactions from one place.

OpenPipe is an SDK that abstracts away fine-tuning custom models. We capture your existing provider’s prompt-completion pairs in the background and use them to create a new model that is faster, cheaper and often more accurate than the original.