janJan is an open source alternative to ChatGPT that runs 100% offline on your computer.

jan

Jan is an open source alternative to ChatGPT that runs 100% offline on your computer, giving you full control and privacy over your AI interactions. It combines local AI model support with optional cloud integration, allowing you to download and run large language models like Llama, Gemma, and Qwen without sending data to external servers.

Key Features

• Local AI Models: Download and run LLMs from HuggingFace with complete privacy and offline capability
• Cloud Integration: Optionally connect to GPT, Claude, Mistral, Groq, and other cloud-based models when needed
• OpenAI-Compatible API: Built-in local server at localhost:1337 for seamless integration with other applications
• Custom Assistants: Create specialized AI assistants tailored to your specific tasks and workflows
• Model Context Protocol: MCP integration for agentic capabilities and enhanced functionality

Use Cases

• Privacy-Conscious Computing: Run AI models completely offline without sharing data with third parties
• Development and Integration: Use the OpenAI-compatible API to power other applications with local AI
• Cost-Effective AI: Eliminate recurring API costs by running models locally on your hardware
• Specialized Workflows: Build custom assistants for domain-specific tasks and professional applications

Who Is It For

Jan is designed for developers, privacy-focused individuals, and organizations that want to leverage AI capabilities without compromising data security or incurring ongoing API costs. It's ideal for users running Windows, macOS, or Linux who have adequate hardware resources and want flexible control over their AI infrastructure.