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Your prompts. One click away. PromptMate: Your personal prompt library for AI chat platforms Save time and stay consistent with your most effective prompts. PromptMate adds a sidebar to the AI chat sites you already use and lets you: - Save frequently-used prompts with Tone and Output Format presets - Insert them into the chat input with one click - Use {{variables}} in prompts. A fill-in dialog asks for values before inserting - Organize prompts into groups, with shared group instructions that prepend automatically - Set a personal User Context (role, background, preferences) that's added to every prompt - Track every edit with version history and word-level diffs - Restore accidentally deleted prompts from trash - Sync prompts across devices via your own Google Drive - Track how often you create, use, and copy prompts (local stats only) Broad platform support PromptMate works on 15 popular AI chat platforms, including ChatGPT, Claude, and Gemini. Save a prompt once and your library follows you to every supported site. See the full compatibility list on GitHub or the extension's options page. Works on Chrome, Brave, Edge, Vivaldi, and Opera. How your data is stored PromptMate uses Google Sign-In to sync your prompts to a hidden, app-only folder in your personal Google Drive. This folder is sandboxed, so PromptMate cannot see or modify any other file in your Drive. No backend server is involved; prompts move directly between your browser and your Drive. Usage counters (created, used, copied, edited, deleted) are stored on your device and never leave it unless you click "Share Analytics", which copies a summary to your clipboard. Who it's for Students creating study guides, developers optimizing code requests, and anyone who fine-tunes prompts and wants them available on every AI platform they use. Source code: https://github.com/jitangupta/PromptMate
Jul 17, 2026
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