PureChat

PureChat is a desktop chat application that puts multiple large language models behind a single interface. Instead of juggling separate apps for different providers, you can switch between OpenAI, Ollama, and DeepSeek models within the same conversation. The app runs entirely on your machine—no hosted service, no cloud sync—so your chat history lives locally on your own storage. That's a meaningful draw for developers, privacy-minded power users, and anyone who wants to experiment with AI chat without shipping their data to a third party. Under the hood, PureChat is built on a modular architecture. That makes it more than a chat client: it's a foundation you can extend. If you're probing how AI integration works, prototyping a custom AI chat platform, or building a proof-of-concept for a product, the modular approach lets you tweak and add pieces without fighting a fixed structure. Multi-model switching per conversation is another standout—you can query one model, then swap to another right in the same thread, which is handy for comparing outputs or handling different tasks with different models. The interface covers the basics you'd expect, plus a few extras. Markdown rendering keeps formatted text readable, whether it's code blocks or rich notes. There's a chat history screenshot feature to export or share conversations as images, and theme switching lets you adjust the look to your taste. Conversation management is straightforward, and all data is stored locally, reinforcing the privacy angle. PureChat is squarely aimed at developers and technically comfortable users. Setup means manual configuration—this isn't a plug-and-play consumer tool. It's a desktop application available for Windows, macOS, and Linux. If you value full control over your AI chat environment and want to avoid the constraints of single-provider services, PureChat gives you flexibility. Against alternatives like ChatGPT or hosted AI assistants, PureChat trades convenience for control and privacy.