Promptlee Bookmarklet

Instant prompt analysis — zero AI tokens — works on any AI chat site

Drag this button to your bookmarks bar

Promptlee

Click runs it on the current page too!

Make sure your bookmarks bar is visible (Ctrl+Shift+B / Cmd+Shift+B)

Drag the gold button above to your bookmarks bar.

Go to claude.ai, chatgpt.com, or any AI chat. Type your prompt.

Click the Promptlee bookmark before hitting send. A panel slides in with score, checklist, issues, and energy.

Click × or the bookmark again to dismiss.

Auto-detects: Which AI site you're on (Claude, ChatGPT, Gemini) and sets model tier automatically. Detects API-style prompts by scanning for system:/role patterns.

Includes: 5-dimension score, 15 lint rules, 10-item preflight checklist, energy/CO₂/water estimates, light/dark theme toggle.

Works on: claude.ai, chatgpt.com, gemini.google.com, poe.com, perplexity.ai, and any site with a text input. No data sent anywhere.