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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

1,007 tools · sorted by quality

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rocketplaneIO

Self-hosted AI SRE for Kubernetes — zero-instrumentation eBPF observability plus a copilot that fixes issues through guardrailed, self-verif...

Score 91 GitHub stars 131 Open source
MaxKB4j

MaxKB4j is an open-source LLMOps platform for LLM workflow applications and RAG developed based on the Java language. The project mainly dra...

Score 91 GitHub stars 129 Open source
warpdrv

Local LLM Server Manager + LlaMA.cpp + Chat

Score 91 GitHub stars 129 Open source
hotclip

免费开源的 AI 剪辑 / 直播切片工具:长视频、直播回放、播客一键切成爆款竖屏短视频,直发抖音/快手/B站/小红书/视频号——AI 找高光金句、弹幕热度进爆...

Score 91 GitHub stars 129 Open source
OmniKey-AI-Unified-Key-Manager

A self-hosted LLM proxy and failover gateway supporting OpenAI & Gemini compatible endpoints. Routes requests dynamically across 12+ LLM pla...

Score 91 GitHub stars 129 Open source
Gozar

Self-hosted, Docker-first OpenAI-compatible LLM gateway with provider routing, fallbacks, API keys, and usage controls.

Score 91 GitHub stars 128 Open source
Saki-Panel

Next-gen AI-native server ops panel with an in-workspace SRE agent. Crash self-healing, safe rollbacks, Docker/game servers, and local Ollam...

Score 91 GitHub stars 128 Open source
aiusage

Open-source AI usage tracker — tokens, cost, and sessions across Claude Code, Codex, Hermes, Qoder, and more

Score 91 GitHub stars 128 Open source
reshapr

The open source, no-code MCP Server for AI-Native API Access

Score 91 GitHub stars 126 Open source
postal

An open-source, terminal-based AI coding agent that reads your code, calls tools, and helps you build.

Score 90 GitHub stars 125 Open source
websum

Summarize web pages and YouTube videos with pluggable LLM backends (Ollama, OpenAI). CLI, library, and Gradio UI.

Score 90 GitHub stars 124 Open source
aidea-zotero

AIdea — AI assistant for Zotero: chat with papers, translate selections, translate full PDFs. Use your existing ChatGPT/Gemini/Copilot subsc...

Score 90 GitHub stars 124 Open source
crumbs

Crumbs by Bretzel - a self-hosted, privacy-first Google Keep alternative. Capture your thoughts, ideas and notes. Built with SvelteKit.

Score 90 GitHub stars 123 Open source
opencode-agent-orchestration-kit

Open-source multi-agent orchestration harness for OpenCode — specialized agents, durable workflows, research, planning, implementation, revi...

Score 90 GitHub stars 122 Open source
TabLift

A lightweight, open-source macOS utility that automatically restores minimized app windows when switching with ⌘+Tab or ⌘+`.

Score 90 GitHub stars 122 Open source
ObsidianRAG

Ask questions about your Obsidian notes using local AI. Privacy-first RAG with Ollama, LM Studio, or any OpenAI-compatible server. Obsidian...

Score 90 GitHub stars 121 Open source
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
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