A bookmarklet is a small piece of JavaScript stored as a browser bookmark. When clicked, it runs on the current page — useful for quick page modifications, data extraction, or productivity hacks.
How to Use
Write or paste your JavaScript in the editor
Click Generate to create the bookmarklet URL
Drag the purple button to your bookmarks bar, or copy the URL manually
Click the bookmark on any page to run your script
Tips
Code is automatically wrapped in a void(function(){ ... })() IIFE
Keep bookmarklets small — browsers have URL length limits (~2000 chars)