A self-hosted ChatGPT UI that keeps your chats in localStorage

What it does

ChatGPT-web is a single-page Svelte interface for the OpenAI ChatGPT API. You supply your own API key, and all conversation history is stored in the browser’s localStorage. It handles multiple models (including GPT-4), streams responses, and can generate DALL-E images from natural-language prompts.

The interesting bit

The project treats the browser as the entire application layer: chats survive tab closures, voice input and output run locally, and the whole thing can be wrapped as a desktop app via Tauri. The README also pitches it as a cheaper alternative to ChatGPT Plus, since you pay per API call rather than a monthly subscription.

Key highlights

• Conversations persist in localStorage with no server-side database or user accounts.
• Supports voice input and spoken responses, plus streaming text generation.
• Ships with pre-selected prompts pulled from the awesome-chatgpt-prompts repository.
• Exports chats as Markdown and generates images via DALL-E when prompted.
• Can be bundled into a desktop application using Tauri.

Verdict

Worth a look if you want a lightweight, self-hosted ChatGPT client and prefer pay-per-use API pricing over another subscription. Skip it if you need team collaboration, server-side history, or advanced orchestration beyond a single-page frontend.