The open source ChatGPT alternative, 100% offline

Launched in 2023

Download for free Compare

ComplexityEasy

Origin

🇺🇸United States

Ideal for

IndividualsFreelancers

ComplexityEasy

Origin

🇺🇸United States

Ideal for

IndividualsFreelancers

About Jan

Strengths

100% open source under AGPLv3 license
Works entirely offline once models are downloaded
Sleek interface inspired by ChatGPT
Flexible extension system (VSCode-like)
Compatible with local models AND cloud APIs
Built-in OpenAI-compatible local API server
Cross-platform: macOS, Windows, Linux
3.1M+ downloads, very active community

Limitations

Performance limited on modest hardware
Some extensions still experimental
Fewer supported models than Ollama
AGPLv3 license restrictive for commercial use
Mobile interface still in development

Download Jan

Features

Graphical Interface (GUI)

OpenAI API Compatible

Multi-Model Support

GPU Acceleration

Model Quantization

Voice & Audio

Offline Mode

Model Hub

Extensions & Plugins

Local API Server

Command Line Interface (CLI)

RAG / Document Chat

Image Generation

Docker Support

Multi-User

Pricing

100% Open Source & Free

Jan is a fully free and open source software. Download it, use it and contribute freely to the project.

Download for free

User reviews

Compare Jan

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Frequently asked questions about JanFAQ

Download Jan

100% Open Source & Free

Jan is a fully free and open source software. Download it, use it and contribute freely to the project.

Download for free

Quick info

Price

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About Jan

Strengths

100% open source under AGPLv3 license
Works entirely offline once models are downloaded
Sleek interface inspired by ChatGPT
Flexible extension system (VSCode-like)
Compatible with local models AND cloud APIs
Built-in OpenAI-compatible local API server
Cross-platform: macOS, Windows, Linux
3.1M+ downloads, very active community

Limitations

Performance limited on modest hardware
Some extensions still experimental
Fewer supported models than Ollama
AGPLv3 license restrictive for commercial use
Mobile interface still in development

Jan

About Jan

Features

Pricing

100% Open Source & Free

User reviews

Compare Jan

Popular comparisons

Frequently asked questions about JanFAQ

Is Jan free?

Does Jan work without internet?

Can Jan connect to ChatGPT or Claude?

What models can Jan run?

Is Jan secure for sensitive data?

What's the difference between Jan and Ollama?

100% Open Source & Free

Stay in the loop

About Jan

Features

Pricing

100% Open Source & Free

User reviews

Compare Jan

Popular comparisons

Frequently asked questions about JanFAQ

Is Jan free?

Does Jan work without internet?

Can Jan connect to ChatGPT or Claude?

What models can Jan run?

Is Jan secure for sensitive data?

What's the difference between Jan and Ollama?

100% Open Source & Free