Jan
FreeOffline AI assistant desktop app
6
#AI chat application#autonomous agent#desktop application#mobile application#offline functionality#local models#privacy-first#user-controlled#VSCode-like extension system#OpenAI-compatible local API server#multimodal reasoning#task automation#data ownership
About Jan
Jan is an open-source ChatGPT alternative that runs 100% offline on your computer. It utilizes open-source AI models, prioritizes privacy, and is highly customizable. Jan is available for Windows, Mac, and Linux, with a mobile version coming soon. It provides an OpenAI-equivalent API server and allows for local server and API usage.
How to Use
Download Jan for your operating system (Windows, Mac, or Linux) and run it offline on your computer. Utilize the OpenAI-equivalent API server at localhost:1337 for compatible apps.
Jan AI's
Key Features
- 100% offline operation
- Open-source AI models
- Privacy-focused
- Highly customizable
- OpenAI-compatible API server
- Local server and API
Use Cases
- Run AI models locally for privacy and security
- Develop custom AI assistants with global hotkeys and in-line AI
- Use as a drop-in replacement for OpenAI with compatible apps
FAQ
Does Jan have an API? Jan AI Discord Here is the Jan AI Discord: https://discord.com/invite/FTk2MvZwJH. For more Discord message, please click here(/discord/ftk2mvzwjh). Jan AI
Key Features
Open-source under AGPLv3 with an active global community
100% offline operation once local models are downloaded
Privacy-first, local-first data storage and user control
Supports Llama3, Gemma3, Mistral, and any GGUF local models
Optional connection to OpenAI, Anthropic, Mistral, and Groq via API keys
Cross-platform: desktop (Windows, macOS, Linux), browser, and server; extension coming
OpenAI-compatible local API server at https://localhost:1337
Extensible architecture with a VSCode/Obsidian-like extensions API
Agentic, long-horizon task automation with Jan‑v2 multimodal model
Jan‑v1 with web search and Ichigo for speech AI voice interactions
Best For
Privacy-conscious professionals: Run offline research, drafting, and analysis on sensitive data with no cloud exposure.Developers and tinkerers: Use the OpenAI-compatible local API to power tools like Continue.dev and Cline with local models.Enterprises with data sovereignty needs: Deploy local-first AI workflows to keep IP and customer data on-premise while enabling automation.Remote and field workers: Operate in low-connectivity environments—airplanes, secure facilities, or remote sites—100% offline.Educators and students: Provide classroom-safe AI assistance that respects privacy and works on school devices without internet.Researchers and journalists: Launch long-horizon autonomous agents to gather sources, analyze findings, and draft reports.Creators and product teams: Leverage Jan‑v2’s multimodal capabilities to iterate on specs, images, and documentation.Customer support and operations: Automate triage, summarization, and knowledge base updates locally to protect user data.Voice-first users: Use Ichigo for dictation, transcription, and voice interactions with private, on-device processing.Extension builders and power users: Create custom workflows and tools via the extensions API to adapt Jan to unique use cases.