If you context-switch a lot—code reviews, emails, brainstorming, learning—you're retyping the same prompts all day. Works with Claude, ChatGPT, Gemini & Perplexity. PromptDeck fixes this. Save your prompts once, inject them with one click or Ctrl+Shift+P. Color-code them. Search. Pin favorites. Version history. 100% free. No login. Runs fully locally in your browser. Built this for myself after rewriting "Be a strict code reviewer" for the 50th time. Figured others might need it too.