Open Source Jan.ai AlternativesAI Chatbots & Large Language Model (LLM) Tools like Jan.ai

The best open source alternative to Jan.ai is Lumo by Proton. If that doesn't suit you, our users have ranked more than 100 alternatives to Jan.ai and loads of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Jan.ai are DeepSeek, Ollama, GPT4ALL and TagSpaces.

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Jan.ai alternatives are mainly AI Chatbots, but if you're looking for Large Language Model (LLM) Tools or AI Writing Tools you can filter on that. Other popular filters include Open Source. These are just examples - use the filter bar below to find more specific alternatives to Jan.ai.
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Alternatives list

  1. Lumo by Proton icon
     92 likes

    Privacy-first AI assistant utilizing zero-access encryption and open-source code, ensuring no data logging, profiling, or training on chats, providing user-controlled, encrypted conversations, with compliance under GDPR and no sharing with third parties.

    111 Lumo by Proton alternatives

    Cost / License

    Application types

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • F-Droid
     
  2. DeepSeek icon
     110 likes

    DeepSeek is a state-of-the-art AI assistant designed to provide intelligent, conversational support across diverse tasks. It leverages advanced natural language processing and machine learning to answer questions, generate creative content, solve complex problems, and offer...

    177 DeepSeek alternatives

    Cost / License

    • Freemium
    • Open Source (MIT)

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
     
  3. Ollama icon
     126 likes

    Supports local deployment of Llama 3, Code Llama, and other language models, enabling users to customize and create personalized models. Ideal for AI development, it offers flexibility for offline AI needs and integrates AI writing and chatbot tools in local setups.

    81 Ollama alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mac
    • Windows
    • Linux
     
  4. GPT4ALL icon
     132 likes

    Locally runs open-source chatbots focused on privacy using consumer CPUs, requiring no internet or GPU. Supports multiple models, custom settings, code and dialogue generation, integrated model downloader, familiar chat UI, and both MIT and enterprise licensing.

    189 GPT4ALL alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
     
  5. TagSpaces icon
     245 likes

    Privacy-first, multi-device organizer for files and folders with customizable tags, color labels, note editing in markdown or HTML, Kanban boards, S3 object storage support, web page clipping, vendor lock-in free filename tagging, open source option, and multi-format preview.

    100 TagSpaces alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    • Microsoft Edge
    • Google Chrome
    • Mozilla Firefox
     
  6. AnythingLLM icon
     44 likes

    Open-source privacy-focused chatbot platform allowing unlimited document uploads, multi-user and single-user modes, AI-powered chat with documents, vector database and LLM compatibility, customizable interface, message history, secure desktop deployment, and full user controls.

    190 AnythingLLM alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted
    • Docker
     
12 of 91 Jan.ai alternatives