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Open source software directory

Open Source Software & Tools

Discover, compare and explore open-source software across AI, developer tools, automation, productivity, databases and more.

78 open-source tools·3.7M+ GitHub stars·Independently curated

Popular open-source tools

Hermes Agent245k

Top pick

Cal.comScheduling for everyone

Skip the setup — get fully-managed, open-source scheduling with team round-robin, workflows and 100+ integrations. Self-host or let Cal handle it.

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What you'll find here

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78 open-source tools · showing 1–39

A personal AI assistant that acts, not just answers.

Desktop AI agent with persistent memory across platforms.

Open-source AI coding agent for the terminal with 75+ LLM providers.

Workflow automation with 400+ integrations and native AI nodes.

Self-hosted AI chat interface for any LLM, local or API.

Virtual whiteboard for sketching hand-drawn diagrams together.

90.2kGPL-3.0 / AGPL-3.0

Blazing-fast, Rust-built code editor with native AI and collaboration.

Free, open-source video editor that runs in the browser.

Autonomous AI dev agents that plan and ship code changes end-to-end.

82.5kApache-2.0

Open-source AI chat framework with agents and plugins.

AI workspace for docs, wikis and projects — fully local-first.

Local-first workspace merging docs, whiteboards and databases.

Agentic AI coding assistant for VS Code with multi-file edits.

All-in-one AI workspace — chat with your documents, any model.

Turn any database into a smart spreadsheet with views and APIs.

Self-hosted, private note-taking built around a timeline.

Open-source design and prototyping platform for teams.

Issue tracking and project planning with cycles and modules.

Encrypted markdown notes with web clipper and sync everywhere.

55.5kApache-2.0

Drag-and-drop builder for LLM apps and AI agents.

Infinite canvas and whiteboard SDK with a delightful feel.

Self-hosted agents that watch the web and act for you.

Terminal AI pair programmer that edits your codebase with any model.

Scheduling infrastructure — booking links you fully control.

Block-based PKM with backlinks and spaced-repetition flashcards.

Customizable team chat with voice, video and omnichannel.

Privacy-first outliner for networked notes and daily journaling.

The open-source internet OS — a personal cloud in your browser.

Fast team knowledge base and wiki with real-time editing.

Open-source notification infrastructure for products.

39.1kMIT / Apache-2.0

Secure team messaging and collaboration for technical teams.

Privacy-first, open-source alternative to Google NotebookLM.

Simple, fast, privacy-focused analytics you can host yourself.

Google Analytics

Hierarchical note-taking built for large personal knowledge bases.

35.9kApache-2.0

Open-source AI code assistant for VS Code and JetBrains.

Open-source social media scheduling across every network.

33.9kApache-2.0

Self-hosted AI coding assistant with a privacy-first design.

33.7kCustom (FSL)

AI dev agent that builds full apps from a description.

29.3kApache-2.0

Open-source embedding database for AI apps and RAG.

All 78 open-source tools, A–Z

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