janhq/jan
Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.
From the publisher
README & documentation
Source previewRead the project’s overview, installation instructions and usage examples. The original README is the source of truth.
English · 中文 · 日本語 Getting Started Jan is bringing the best of open-source AI in an easy-to-use product. Download and run LLMs with full control and privacy. The easiest way to get started is by downloading one of the following versions for your respective operating system: Download from jan.ai or GitHub Releases. For those who enjoy the scenic route: This handles everything: installs dependencies, builds core components, and launches the app. Available make targets: Run make dev from Git Bash (installed with Git for Windows) — make dispatches its recipes through sh, so a plain cmd.exe won't work. You do not need a "Native Tools Command Prompt for VS 2022". The bundled llama.cpp engine builds with Ninja + clang-cl, and clang-cl locates the MSVC toolchain and Windows SDK on its own. What has to be installed (and on PATH for ninja/clang-cl/cmake): Engine variants are picked with JANENGINEVARIANT (tokens: cpu,…
Read the full README ↗ · Preview checked 2026-10-31T07:45:29.996Z
Inside the original README — Document outline
- Jan - Open-source ChatGPT replacement
- Installation
- Features
- Build from Source
- Prerequisites
- Run with Make
- Manual Commands
- Building on Windows
- System Requirements
- Troubleshooting
- Contributing
- Links
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Links from the README
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What this repository does
Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.
Repository facts
- Owner
- janhq
- Primary language
- Rust
- Stars
- 45,212
- Forks
- 3,124
- Open issues + pull requests
- 567
- License
- Other
- Archived
- No
- Default branch
- main
- Created
- 2023-08-17T02:17:10.000Z
- Last push
- 2026-10-31T05:19:44.000Z
Topics and intended use
Owner-supplied topics: chatgpt, gpt, llamacpp, llm, localai, open-source, self-hosted, tauri
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Source and freshness
Source: GitHub. Metadata observed 2026-11-01T12:20:37.856Z. Daily imports are snapshots, not real-time monitoring.
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