ChatGPTNextWeb/NextChat

✨ Light and Fast AI Assistant. Support: Web | iOS | MacOS | Android | Linux | Windows

What it solves

NextChat provides a fast, lightweight, and privacy-focused AI assistant interface. It solves the problem of needing a professional, cross-platform chat UI that can be easily deployed and connected to various LLM providers without requiring users to manage complex setups.

How it works

It acts as a client-side application that connects to AI APIs (such as OpenAI, Claude, Gemini, DeepSeek, and others). Users can deploy it via Vercel, Docker, or as a desktop app. All conversation data is stored locally in the browser to ensure privacy. It supports streaming responses, Markdown rendering (including LaTeX and Mermaid), and prompt templates to streamline interactions with different AI models.

Who it’s for

  • Individual users looking for a polished, cross-platform AI chat interface for their own API keys.
  • Developers who want to quickly deploy a private AI assistant for themselves or a small team.
  • Enterprises requiring a customized, private deployment with brand customization, permission controls, and internal knowledge base integration.

Highlights

  • One-click deployment on Vercel in under a minute.
  • Multi-model support including Claude, DeepSeek, GPT-4, and Gemini Pro.
  • Privacy-first design with local browser storage for all data.
  • Cross-platform availability as a Web PWA, iOS app, and desktop apps for Windows, MacOS, and Linux.
  • Extensibility through plugins, Artifacts for previewing generated content, and support for the Model Context Protocol (MCP).
  • Prompt management with built-in templates and support for custom system prompts.

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