PromptDeck — AI Prompt Manager

Manage custom system prompts across ChatGPT, Claude, Gemini & Perplexity. No login. No ads. Works locally.

Stop retyping system prompts every time you switch contexts. PromptDeck lets you save, organize, and inject custom AI behaviors into ChatGPT, Claude, Gemini, and Perplexity with one click. HOW IT WORKS - Save your expert prompts as reusable presets - Color-code and organize them however you want - Click any preset to inject it instantly (or press Ctrl+Shift+P) - No copy-paste. No switching tabs. Just select and go. POWER USER FEATURES - Unlimited custom prompts with color tags - Pin your favorites to the top - Search and filter in milliseconds - Import/Export JSON libraries - Version history (roll back edits) - Keyboard shortcuts for everything 100% PRIVATE - No account required - No trials or subscriptions - No ads or tracking - Everything stored locally in your browser - Your data never leaves your device FREE STARTER LIBRARY Visit promptdeck-library.vercel.app to download 100+ pre-made prompts across code, writing, research, analysis, and more. Perfect for developers, writers, researchers, and anyone who uses AI beyond casual chat.