nully

Nully is a lightweight, privacy-focused AI chat application designed for users seeking a fast and self-hostable solution. The tool enables interaction with a wide range of AI models via OpenRouter, allowing users to bring their own API key and select from hundreds of models provided by various major providers. Nully emphasizes privacy by ensuring that no account creation or tracking is required; all chat history, settings, and API keys are stored locally on the user's device rather than on external servers.

The application supports key features such as instant streaming replies, the ability to send images, PDFs, and other file attachments, and web search capabilities where models can read links provided by the user. Users can export their chat history to a file for portability and restore it as needed. Nully offers both light and dark themes and is optimized for use on mobile devices. Performance benchmarks indicate that the tool loads quickly and uses minimal system resources compared to other chat applications.

Nully is delivered as a single small binary with no database requirement or build step. Users can run it directly with Go or deploy it as a compact container, making self-hosting straightforward. For those who prefer not to self-host, a hosted version is available online. The tool is open source under the MIT license, and its source code is accessible on GitHub. Security is further enhanced by locking down the page to ensure API keys are only sent to OpenRouter, and an optional toggle restricts chat to providers that commit to not retaining user data.

As an AI chat application, Nully is tailored for individuals who prioritize privacy, speed, and control over their data while engaging with a broad selection of AI models through OpenRouter.