How to install: make sure your bookmarks bar is visible ( Ctrl+Shift+B on Windows, Cmd+Shift+B on macOS), then drag each orange button onto the bar. Click it on any page to activate the bookmarklet.

Why bookmarklets?

Unlike browser extensions, bookmarklets require no install permission and cannot access other tabs, your history, or your cookies. Each one is a single javascript: URL stored as a favorite. You can see the source by right-clicking the button and picking Edit.

Use cases

  • Developer workflows — quickly inspect OG tags or viewport dimensions without DevTools.
  • Content research — grab title + URL as Markdown and drop into a notes app.
  • QA — print any page to PDF for archiving a bug reproduction.
  • Visual debugging — highlight every link to review site nav structure.

Prefer full tool pages? See Screenshot Webpage, Webpage to PDF, and URL Preview.