Everything Open, in one place.46 open projects, one index.

1. OpenAI

   Frontier models, developer APIs, ChatGPT, and agent-facing tools. The reference point for many modern Open* apps.

   AI———
   +

2. OpenAlex

   Open catalog of the global research system, with scholarly works, authors, institutions, citations, and APIs.

   Knowledge———
   +

3. OpenBao

   Open-source secrets manager and Vault fork for secret storage, dynamic credentials, and encryption services.

   SecurityMPL-2.08.7k2d
   +

4. OpenBB

   Open data platform for investment research — market data, analytics, and an API built for analysts, quants, and agents.

   KnowledgeCustom74.7k1d
   +

5. openbotauto

   Open-source AI coworkers that each get a computer of their own — a browser, files and tools — with every action decided before it happens and recorded after. Works with any AG-UI agent.

   DevtoolsMIT7.1k1d
   +

6. OpenBSD

   Operating system project known for security focus, correctness, and a deeply opinionated engineering culture.

   Security—3.9ktoday
   +

7. OpenChatCut

   Local-first conversational video editor with a professional multi-track timeline, agent skills, and MCP integration.

   DevtoolsAGPL-3.02.7k4d
   +

8. OpenClaw

   Open-source personal AI agent that actually does things for you, on any OS and any platform.

   DevtoolsMIT393ktoday
   +

9. OpenCode

   Open source coding agent for terminal, IDE, and desktop workflows, with broad model-provider support.

   DevtoolsMIT221.4ktoday
   +

10. OpenCost

    CNCF cost monitoring for Kubernetes and cloud spend, with per-workload attribution instead of one opaque invoice.

    InfraApache-2.06.8k2d
    +

11. OpenCut

    Open-source video editor for web and desktop — multi-track timeline, no watermark, and a real alternative to closed editors.

    DevtoolsMIT96.1k4w
    +

12. OpenCV

    Open source computer vision library for image processing, machine perception, deep learning, and edge AI work.

    AIApache-2.091.3ktoday
    +

13. Apache OpenDAL

    One data access layer for every storage backend — S3, GCS, HDFS, and dozens more behind a single API.

    InfraApache-2.05.4k2d
    +

14. Open Deep Research

    Configurable research agent from LangChain for bringing your own models, search tools, and MCP servers.

    AIMIT12.7k2mo
    +

15. Open Design

    Local-first design workspace that turns your coding agent into the design engine — prototypes, decks, and pages exported as real HTML, PDF, or PPTX.

    DevtoolsApache-2.0103.9ktoday
    +

16. OpenDotsNewauto

    Your always-on AI coworkers that move between text, calls, and Slack.

    AIMIT6k3d
    +

17. OpenFeature

    Vendor-neutral feature flag specification and SDK ecosystem for keeping product rollout logic portable.

    DevtoolsApache-2.01.3k1d
    +

18. OpenFGA

    Fine-grained authorization system inspired by Zanzibar-style relationship-based access control.

    SecurityApache-2.06k1d
    +

19. openfilmNewauto

    The open source AI video agent: turns any coding agent into a video agent, with an editor to change anything it makes.

    DevtoolsMIT2.8ktoday
    +

20. OpenFreeMap

    Open-source map hosting path for displaying custom OpenStreetMap-based maps in websites and apps.

    KnowledgeCustom6.3k2d
    +

21. OpenHands

    Open platform for cloud coding agents, with CLI, SDK, web workflows, and model-agnostic agent orchestration.

    DevtoolsMIT91.8ktoday
    +

22. Open Library

    An open catalog for books and reading. Open systems are cultural infrastructure too.

    KnowledgeAGPL-3.06.8ktoday
    +

23. OpenLLMetry

    OpenTelemetry-based observability for LLM and agent apps — traces, prompts, token cost, and quality signals.

    ObservabilityApache-2.07.5k6d
    +

24. Open Lovable

    Open-source AI website-to-app builder that turns existing sites into React and Next.js application code.

    DevtoolsMIT28.8k2w
    +

25. OpenManus

    Open implementation path for general AI agent experiments inspired by the newer autonomous-agent wave.

    DevtoolsMIT58.8k3w
    +

26. OpenMausBotauto

    Open-source Grok Bot alternative with a virtual machine that bots can use.

    DevtoolsApache-2.05.6ktoday
    +

27. OpenMemory

    Memory layer for coding agents and MCP workflows, aimed at keeping useful context available across sessions.

    AIApache-2.067.8k2d
    +

28. OpenObserve

    Open-source observability platform for logs, metrics, traces, dashboards, alerts, pipelines, and frontend monitoring.

    ObservabilityAGPL-3.022.5ktoday
    +

29. OpenPanel

    Open-source web and product analytics with event tracking, funnels, retention, and privacy-first reporting.

    ObservabilityAGPL-3.07.2k1d
    +

30. OpenPipe

    Fine-tuning and agent reinforcement-learning tooling that turns expensive prompts into cheaper task-specific models.

    AIApache-2.02.8k2y
    +

31. Open Policy Agent

    CNCF-graduated general-purpose policy engine. Keeps authorization and admission rules out of application code.

    SecurityApache-2.012.4ktoday
    +

32. OpenReplay

    Self-hosted session replay and product analytics for seeing user behavior and debugging frontend issues.

    ObservabilityCustom13k2d
    +

33. OpenRouter

    Model routing and API access across many providers. Useful when comparing behavior, price, and availability.

    AI———
    +

34. OpenSanctions

    Open-source database of sanctions, watchlists, and politically exposed persons for screening and research.

    KnowledgeMIT8552d
    +

35. OpenSearch

    Search, observability, and analytics stack for searchable systems and operational dashboards.

    InfraApache-2.013.9k1d
    +

36. OpenSSL

    Cryptography and TLS infrastructure used across the web. Not glamorous, but very much load-bearing.

    SecurityApache-2.031.1k1d
    +

37. OpenStack

    Open infrastructure for cloud computing. A foundational name for private cloud and infrastructure control.

    InfraApache-2.06.1ktoday
    +

38. openstatus

    Open-source status page and uptime monitoring for teams that need transparent incident communication.

    ObservabilityAGPL-3.09.2ktoday
    +

39. OpenStreetMap

    Collaborative map data for the world. A public knowledge layer for products, research, and civic tooling.

    KnowledgeGPL-2.02.9k3d
    +

40. Open SWE

    Open-source framework for internal coding agents with cloud sandboxes, workflow triggers, subagents, and PR creation.

    DevtoolsMIT11.1ktoday
    +

41. OpenTelemetry

    Vendor-neutral observability framework for traces, metrics, logs, APIs, SDKs, collectors, and instrumentation.

    ObservabilityApache-2.07.7k2d
    +

42. OpenTofu

    Open infrastructure-as-code project for provisioning and managing cloud resources with a familiar workflow.

    InfraMPL-2.030.6k2d
    +

43. OpenVPN

    Secure networking and VPN tooling for private access, remote operations, and network control.

    SecurityCustom14.7ktoday
    +

44. OpenWAMNewauto

    An open, modular framework for systematic world–action model pretraining; the official research code.

    AIApache-2.01.1ktoday
    +

45. Open WebUI

    Self-hosted AI interface for local and cloud models, with tools, prompts, documents, RAG, and team workflows.

    AICustom156.7ktoday
    +

46. OpenWrt

    Linux-based embedded operating system for routers and network devices with writable packages and deep control.

    InfraCustom28.9ktoday
    +

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