What Is NextChat? A Cross-Platform AI Chat Interface for Every Provider
NextChat (88k+ stars) is a cross-platform, open-source AI chat interface that connects to ChatGPT, Claude, Gemini, Ollama, and more in one unified UI.
What Is NextChat?
NextChat (formerly known as ChatGPT-Next-Web) is a modern, open-source AI chat interface that has taken the self-hosting community by storm. Built with Next.js and React, it provides a sleek, responsive chat experience that rivals commercial AI chat platforms — but with the freedom and control of self-hosted software. With over 88,000 GitHub stars, it's consistently ranked as one of the most popular and actively maintained chat UI projects in the open-source ecosystem.
What sets NextChat apart is its remarkable versatility: it's not tied to any single AI provider. Instead, it acts as a unified frontend that connects to virtually any major AI backend — OpenAI's ChatGPT, Anthropic's Claude, Google's Gemini, local models via Ollama, Groq's fast inference, and custom API endpoints. This means you can switch between providers on the fly, compare responses, and choose the best tool for each task without juggling multiple interfaces.
NextChat runs everywhere: Web browsers, iOS, macOS, Android, Linux, and Windows. The desktop versions are built with Tauri, providing a native feel with minimal resource overhead. This cross-platform support means your AI assistant travels with you across all your devices.
Key Features
Multi-Model Support: Connect to OpenAI, Claude, Gemini, Ollama, Groq, Azure, and any OpenAI-compatible API simultaneously. Switch providers mid-conversation.
Conversation Management: Full history with search, export, and import. Organize chats into folders, pin important conversations, and pick up where you left off.
Mask System: Create preset prompt templates ("masks") for different personas or use cases. One click switches between a coding assistant, writing coach, or role-play character.
Plugin Architecture: Extend functionality with plugins for web search, image generation, code execution, and more.
Markdown and Code: Full markdown rendering with syntax-highlighted code blocks, LaTeX math, and diagram support.
Privacy-First: All conversations stay on your device or server. No data is sent to third parties beyond your chosen AI provider.
Why Self-Host NextChat?
Running your own NextChat instance gives you complete control over your AI interactions. You decide which models to use, how conversation data is stored, and who has access. For teams and organizations, this means no per-seat licensing, no data leaving your infrastructure, and the ability to use local models via Ollama for sensitive workloads. The one-command Docker deployment makes it trivial to set up — just pull the image, configure your API keys, and you're online in minutes.
Conclusion
NextChat has earned its 88,000+ stars by delivering a polished, feature-rich chat experience that adapts to the user rather than forcing them into a single ecosystem. Whether you're an individual looking for a beautiful ChatGPT alternative or an organization needing a unified AI interface across multiple providers, NextChat delivers with style, performance, and true cross-platform freedom.