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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

1,025 tools · sorted by quality

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errand

An open-source take on Grok Bot/Muse. Persistent AI teammates with their own cloud computers, powered by Runta.

Score 90 GitHub stars 121 Open source
claude-skill-management-consultant-B1

Claude skill & plugin: turn Claude (or any LLM) into an MBB-grade management consultant. Case-interview coaching, strategy frameworks, marke...

Score 90 GitHub stars 121 Open source
docmancer

Find out what your coding agents already know. Docmancer indexes the memory, rules, and instructions Claude Code, Codex, Cursor, and Gemini...

Score 90 GitHub stars 121 Open source
novel-studio

开源、本地优先的 AI 长篇小说创作引擎:多智能体世界推演、按弧规划、RAG 长程记忆、逐章审核与断点恢复 | Open-source AI novel generator for long...

Score 90 GitHub stars 120 Open source
open-source

A living, machine-readable catalog of open-source projects with practical summaries, categories, quality signals and transparent scoring.

Score 90 GitHub stars 120 Open source
chattermate.chat

Open-source AI customer support platform — AI chatbot with human handoff, Shopify & Slack integrations, visual workflow builder. Self-hosted...

Score 90 GitHub stars 120 Open source
shuffle

Fast, open-source, GPU-rendered file manager for macOS. A Finder alternative built in Rust with GPUI.

Score 90 GitHub stars 120 Open source
huf

Open-source, self-hosted multi-agent AI infrastructure for teams and apps with support for cloud and local models, tool integrations, workfl...

Score 90 GitHub stars 120 Open source
pingcrm

Personal Networking CRM — AI-powered, open-source, self-hostable. Syncs Gmail, Telegram, Twitter/X, and LinkedIn. Detects life events, draft...

Score 90 GitHub stars 120 Open source
CodeAF

Open-Source Software factory for Open Models

Score 90 GitHub stars 119 Open source
JobNavigator

Self-hosted job-hunt automation: scrape career pages and job boards, score jobs against your résumés with AI, tailor résumés and cover lette...

Score 90 GitHub stars 119 Open source
houtini-lm

MCP server that saves Claude Code tokens by delegating bounded tasks to local or cloud LLMs. Works with LM Studio, Ollama, vLLM, DeepSeek, G...

Score 90 GitHub stars 119 Open source
awesome-developer-conferences

A daily updated directory of developer, DevRel, cloud native, and platform engineering conferences taking place all over the world, separate...

Score 90 GitHub stars 119 Open source
infrakitchen

InfraKitchen is an open source Developer Platform that brings Platform Engineering practices to infrastructure management.

Score 90 GitHub stars 118 Open source
OgbujiPT

Client-side toolkit for using large language models, including where self-hosted

Score 90 GitHub stars 116 Open source
builder

📦✨ AI Builder For Creating Sites and Apps! An open-source alternative to Lovable, Replit, v0, and similar platforms.

Score 90 GitHub stars 116 Open source
deskrpg

Self-hosted 3D virtual office for Hermes Agent — your profiles become AI employees who sit at desks, chat, hold meetings, work kanban cards...

Score 90 GitHub stars 115 Open source
Open-Pomelli

Open-source implementation of Pomelli project by Google

Score 90 GitHub stars 115 Open source
moira

Agent Workflow Engine for AI agents over MCP — per-step directives, completion conditions, and JSON-Schema validation. Self-hostable (Apache...

Score 90 GitHub stars 115 Open source
opencode-mobile

OpenCode Mobile — open-source Android client for the OpenCode AI coding agent. Run AI coding sessions from your phone against your self-host...

Score 90 GitHub stars 115 Open source
octo-agent

Open-source, single-binary, self-hosted AI agent — your models and data stay on your machine. A coding agent on par with Claude Code and a p...

Score 90 GitHub stars 114 Open source
notifkit

Self-hosted notification infrastructure for product notifications. One API call handles email, SMS, push, and webhooks, with preferences, qu...

Score 90 GitHub stars 114 Open source
OpenTutor

The first block-based adaptive learning workspace that runs locally. Upload any material → get AI-generated notes, quizzes, flashcards, and...

Score 90 GitHub stars 114 Open source
free-domains

A curated collection of free subdomains ideal for personal websites, open-source projects, portfolio showcases, and innovative online ventur...

Score 90 GitHub stars 112 Open source
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