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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

1,006 tools · sorted by quality

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gary4juce

seven open source ai music models inside the DAW

Score 90 GitHub stars 91 Open source
open-builder

Open Builder is an open-source AI-powered app generator. Build web applications through natural language conversations.

Score 90 GitHub stars 91 Open source
awesome-indonesia

Awesome list of Indonesian open source projects listing on https://indopensource.org/projects and https://tokengratis.id/opensource

Score 90 GitHub stars 91 Open source
edge

Open-source AI agent that runs on your own computer and does your tasks. Any model (Claude, GPT, Gemini, Grok, Ollama), drives your real bro...

Score 90 GitHub stars 90 Open source
overtchat

A simpler self-hosted alternative to Open WebUI. Bring your own API keys or local models. Native Android client.

Score 90 GitHub stars 90 Open source
iOS-vibebuddy

Native Mac, iPhone & Apple Watch companion for Claude Code, Codex, Grok and Cursor. Task inbox, wrist notifications, agent handoffs, quota w...

Score 90 GitHub stars 90 Open source
Hexis

Centrally manage AI-agent skills, tools, context, permissions, and identity across your entire org. Self-hosted, Git-backed and MCP-native.

Score 90 GitHub stars 89 Open source
agents-shipgate

The deterministic merge gate for AI-generated agent capability changes — a local-first, static Tool-Use Readiness review for MCP, OpenAPI, a...

Score 90 GitHub stars 89 Open source
Tiktoken

High-performance .NET BPE tokenizer — up to 618 MiB/s, competitive with Rust. Zero-allocation counting, multilingual cache, o200k/cl100k/r50...

Score 90 GitHub stars 89 Open source
bike4mind

The open-core AI workbench — notebooks, agents, RAG, voice, and images across any model: OpenAI, Anthropic, Google, xAI, or local via Ollama...

Score 90 GitHub stars 89 Open source
llm_context_benchmarks

📊 LLM Context Benchmarks - A comprehensive benchmarking tool for testing LLMs with varying context sizes using Ollama. Features dual benchm...

Score 90 GitHub stars 88 Open source
sixb

Open-source TypeScript framework for building operational software used by humans and AI agents.

Score 90 GitHub stars 88 Open source
everything-openai-codex

EOC: open-source operating system for OpenAI Codex workflows with agents, skills, hooks, rules, memory, safety gates, and cross-harness adap...

Score 90 GitHub stars 88 Open source
mindbase-llm-wiki

Karpathy's LLM Wiki idea as a product — an AI that builds and maintains a markdown wiki from your notes and sources. MCP server + web UI, ru...

Score 90 GitHub stars 87 Open source
OpenRegex

A unified, self-hosted platform for testing and debugging regular expressions. OpenRegex uses isolated polyglot micro-workers to guarantee 1...

Score 90 GitHub stars 87 Open source
csv-ai-analyzer

A self-hosted, browser-based AI CSV analyzer

Score 90 GitHub stars 86 Open source
garcon

Self-hosted browser workspace to run coding agents in parallel, steer work as it runs, review diffs, and ship.

Score 90 GitHub stars 86 Open source
nerve

Self-hosted AI agent runtime — personal assistants, autonomous workers, and everything in between. Built on the Claude Agent SDK.

Score 90 GitHub stars 85 Open source
writemd

Open-source macOS Markdown editor with appearance profiles, Vim mode, previews, and local writing corrections.

Score 90 GitHub stars 85 Open source
ai-clipping-generator

Open-source AI video clipping generator — production-ready Next.js SaaS that auto-extracts viral shorts, Reels, and TikToks from long-form Y...

Score 90 GitHub stars 84 Open source
openhermit

OpenHermit is the open-source platform for deploying fleets of AI agents as production services — durable state, sandboxed execution, manage...

Score 90 GitHub stars 84 Open source
Sandcastle

Describe what you want. Go home. Sandcastle ships it. 6 AI providers, EU data residency, smart failover, cost intelligence, 20 step types, 2...

Score 90 GitHub stars 84 Open source
libre-webui

A local-first workspace for chat, private knowledge, artifacts, and isolated model-driven work. Self-hosted. Provider-flexible. Apache 2.0.

Score 90 GitHub stars 84 Open source
Claxedo

Open-source coding-agent workspace: desktop app + composable TypeScript framework for building coding-agent products

Score 90 GitHub stars 83 Open source
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