Open-source AI assistants in 2026
12 open-source projects, ranked by GitHub stars and how recently each was worked on. Open WebUI leads with 158k stars, ahead of NextChat. 10 had code pushed in the last three months. Most common licenses: See repository (3), MIT (3) and Apache-2.0 (3). Commercial AI assistants are listed separately.
All open-source AI assistants, ranked
Complete systems you can adopt 10
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1
Open WebUI open-webui
User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
Complete system Production-ready You run local or private models and want a full-featured chat front end for yourself or a team.
★ 158k See repository Python Active, pushed today -
2
NextChat ChatGPTNextWeb
✨ Zero-config AI chat assistant. No API key needed — sign up and instantly chat with GPT-5, Claude 4, Gemini 2.5, DeepSeek & 100+ top models. Pay-as-you-go saves you more. Available on Web, iOS, macOS, Android, Linux, Windows.
Complete system Usable You want a fast personal chat front end you can deploy to Vercel or run as a desktop app.
★ 89k MIT TypeScript Active, pushed 13 days ago -
3
LobeHub lobehub
🤯 LobeHub is your Chief Agent Operator, organizing your agents into 7×24 operations by hiring, scheduling, and reporting on your entire AI team.
Complete system Production-ready You want a polished multi-model chat and agent workspace, hosted or self-hosted.
★ 84k See repository TypeScript Active, pushed today -
4
Cherry Studio CherryHQ
Your AI workspace for models, agents, and productivity.
Complete system Production-ready You use several AI providers and want them, plus agents and document search, in one desktop app.
★ 53k AGPL-3.0 TypeScript Active, pushed today -
5
LibreChat LibreChat-AI
Enhanced ChatGPT Clone: Features Agents, MCP, Skills, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message search, Code Interpreter, langchain, DALL-E-3, OpenAPI Actions, Functions, Secure Multi-User Auth, Presets, open-source for self-hosting. Active
Complete system Production-ready Your organisation wants one private chat interface over several model providers with user accounts.
★ 47k MIT TypeScript Active, pushed today -
6
Jan janhq
Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.
Complete system Usable You want private, offline AI chat on your own computer without command-line setup.
★ 45k See repository Rust Active, pushed today -
7
Leon leon-ai
🧠 Leon is your open-source personal assistant.
Complete system Experimental You want to experiment with a self-hosted voice assistant you can extend.
★ 18k MIT TypeScript Active, pushed today -
8
DeepChat ThinkInAIXYZ
🐬DeepChat - A smart assistant that connects powerful AI to your personal world
Complete system Usable You want one desktop client for many model providers with MCP tool support.
★ 6.4k Apache-2.0 TypeScript Active, pushed today -
9
Conduit cogwheel0
Native iOS and Android client for Open WebUI, direct OpenAI-compatible, Ollama, and Hermes agents.
Complete system Usable You run Open WebUI or Ollama and want a native phone app instead of the web interface.
★ 2.4k GPL-3.0 Dart Active, pushed today -
10
Librechat-Mobile garfiec
The full LibreChat experience, rebuilt natively for Android and iOS, and it works with whichever LibreChat version your server runs.
Complete system Experimental You or your team use a LibreChat server and want a proper mobile app for it.
★ 143 Apache-2.0 Kotlin Active, pushed today
Templates and starters 2
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1
ChatGPT Clone xtekky
ChatGPT interface with better UI
Template or starter Experimental Only as a learning example; maintained alternatives are far better.
★ 3.5k GPL-3.0 Python Quiet, pushed 2 years ago -
2
ChatGPT-Pro EyuCoder
ChatGPT-Pro is an advanced application that combines the power of ChatGPT and DALL.E.
Template or starter Experimental Only as a small example of calling OpenAI from a React front end.
★ 479 Apache-2.0 JavaScript Quiet, pushed 2 years ago
Compared head to head
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Open-source licenses
- Permissive: 6. Use it anywhere, including in closed products. You keep the copyright notice; Apache-2.0 also grants patent rights.
- Strong copyleft: 2. If you distribute the program or anything built on it, you must release the whole source under the same license.
- Network copyleft: 1. Like GPL, and running a changed version as a web service counts as distributing it, so its users get the source too.
Languages
TypeScript 6, Python 2, Rust 1, Dart 1, Kotlin 1 and JavaScript 1.
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