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Best Open Source AI Tools

Open-source AI gives you portable models, local runtimes, and auditable stacks. Explore high-signal projects here, then compare licenses and heat on the dedicated page.

Open compare table Related: Best Coding Agent Tools · Best LLM Chat Tools · Best RAG Tools · Best AI Image Generation Tools

Top tools

1,001 tools · sorted by quality

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mindshub

The unified workspace where open-source models get things done for you.

Score 100 GitHub stars 39,616 Open source
gun

An open source cybersecurity protocol for syncing decentralized graph data.

Score 100 GitHub stars 19,132 Open source
haystack

Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agen...

Score 100 GitHub stars 26,584 Open source
leon

🧠 Leon is your open-source personal assistant.

Score 100 GitHub stars 17,515 Open source
SurfSense

Air gapped, privacy focused open source NotebookLM alternative. Join our Discord: https://discord.gg/ejRNvftDp9

Score 100 GitHub stars 16,246 Open source
DB-GPT

open-source agentic AI data assistant for the next generation of AI + Data products.

Score 100 GitHub stars 19,925 Open source
InsForge

The all-in-one, open-source backend platform for agentic coding. InsForge gives your coding agent database, auth, storage, compute, hosting,...

Score 100 GitHub stars 12,710 Open source
onyx

Open Source AI Platform - AI Chat with advanced features that works with every LLM

Score 100 GitHub stars 32,236 Open source
khoj

Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Tur...

Score 100 GitHub stars 37,390 Open source
open-swe

An Open-Source Asynchronous Coding Agent

Score 100 GitHub stars 10,761 Open source
open-webui

User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

Score 100 GitHub stars 152,949 Open source
drawnix

开源白板工具（SaaS），一体化白板，包含思维导图、流程图、自由画等。All in one open-source whiteboard tool with mind, flowchart, freehand and...

Score 100 GitHub stars 14,758 Open source
speech-to-speech

Build voice agents with open-source models

Score 100 GitHub stars 13,317 Open source
E2B

Open-source, secure environment with real-world tools for enterprise-grade agents.

Score 100 GitHub stars 13,903 Open source
activitywatch

The best free and open-source automated time tracker. Cross-platform, extensible, privacy-focused.

Score 100 GitHub stars 18,951 Open source
CowAgent

Open-source super AI assistant & Agent Harness. Plans tasks, runs tools and skills, self-evolves with memory and knowledge. Multi-agent, mul...

Score 100 GitHub stars 47,096 Open source
pipecat

Open Source framework for voice agents, multimodal apps, and realtime AI. Maintained by Daily and the community.

Score 100 GitHub stars 15,827 Open source
adk-python

An open-source, code-first Python toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.

Score 100 GitHub stars 21,629 Open source
Archon

The first open-source harness builder for AI coding. Make AI coding deterministic and repeatable.

Score 100 GitHub stars 23,532 Open source
LibreChat

Enhanced ChatGPT Clone: Features Agents, MCP, Skills, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, Open...

Score 100 GitHub stars 44,876 Open source
career-ops

Open-source AI job search: scan job portals, evaluate listings into a structured A-H report with a global 1-5 score, tailor your CV, track a...

Score 100 GitHub stars 71,722 Open source
bruno

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

Score 100 GitHub stars 46,943 Open source
openvino

OpenVINO™ is an open source toolkit for optimizing and deploying AI inference

Score 100 GitHub stars 10,913 Open source
carla

Open-source simulator for autonomous driving research.

Score 100 GitHub stars 14,422 Open source
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