Open WebUI provides a self hosted platform for connecting AI models and extending the interface with code.
Open source
24 alternativesJan
Jan runs an offline AI chat assistant on a personal computer as an open-source ChatGPT alternative.
About Jan
Jan is an open-source desktop program that downloads and runs large language models on a personal computer for offline chat. It can download models such as Llama, Gemma, Qwen and GPT-oss from HuggingFace and allows creation of custom assistants.
It provides a local OpenAI-compatible server at localhost:1337 and MCP integration for agentic capabilities. It can also optionally connect to external providers such as OpenAI, Anthropic, Mistral, Groq and MiniMax, so local-only operation applies when using local models. Installers are listed for Windows, macOS and Linux, and larger models need more memory, listed as 16GB for 7B models and 32GB for 13B models on macOS.
Key features
- Download and run LLMs from HuggingFace locally
- Connect to external models via OpenAI, Anthropic, Mistral and others
- Create specialized custom assistants for tasks
- Provide local OpenAI-compatible API server at localhost:1337
- Support Model Context Protocol for agentic capabilities
- Offer installers for Windows, macOS and Linux
Best for: People with a compatible computer who want to run open models locally and optionally connect to cloud models.
Good for
- Runs models on the user's own computer for local use
- Works with both downloaded HuggingFace models and external provider connections
- Lists installers for Windows, macOS and Linux
Watch out for
- Needs sufficient hardware, listed on macOS as 8GB RAM for 3B models, 16GB for 7B and 32GB for 13B
- Building from source requires Node.js, Yarn, Make and Rust
- Windows source builds need Git Bash plus tools such as Visual Studio Build Tools, LLVM, Ninja and CMake
Jan at a glance
- Website
- github.com/janhq/jan
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Jan FAQ
Where can Jan be downloaded?
From jan.ai or GitHub Releases, with files listed for Windows, macOS, and Linux including deb and AppImage.
Can Jan use models from outside providers?
Yes, it can connect to models via OpenAI, Anthropic, Mistral, Groq, MiniMax and others.
What system is needed to run models?
Listed examples include macOS 13.6 or later and Windows 10 or later, with GPU support noted for Windows and GPU acceleration for Linux.
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