PromptMate

Your prompts. One click away.

 

PromptMate is a Chrome extension that injects a prompt-management sidebar into ChatGPT, Claude, and DeepSeek. Compose prompts from a reusable body plus selectable Tone and Output Format presets, then insert them into the host chat with a single click.

Features

• Prompt library — save, edit, and organize prompts in a sidebar alongside the chat
• Tone + Output Format presets — compose prompts by combining a body with reusable modifiers (formal, concise, bullet list, JSON, etc.)
• One-click insert — sends the composed text straight into the ChatGPT, Claude, or DeepSeek input field
• Local-first — prompts are stored in chrome.storage.local on your machine (Drive sync coming soon)
• No servers, no tracking — the extension talks only to the host sites you're already using

Install

From source (current path while pre-release)

git clone https://github.com/jitangupta/PromptMate.git
cd PromptMate
npm install
npm run build

Then in Chrome:

1. Go to chrome://extensions
2. Enable Developer mode (top-right toggle)
3. Click Load unpacked and select the repo root

The extension appears on chatgpt.com, claude.ai, and chat.deepseek.com as a PromptMate floating button.

From Chrome Web Store

Install from the Chrome Web Store listing.

Privacy

PromptMate does not run any backend. Your prompts are stored in your browser's local extension storage and (once Drive sync ships) in your own Google Drive. The extension has host permissions only for chatgpt.com, claude.ai, and chat.deepseek.com — the three sites it injects the sidebar into.

Contributing

See CONTRIBUTING.md for dev setup, build commands, and the kind of bugs most likely to need triage (hint: host-site DOM selectors break when ChatGPT, Claude, or DeepSeek ships a redesign).

License

MIT © Jitan Gupta