scTools is a growing collection of lightweight utilities for the web — from a 63-tool browser bookmarklet that runs on any page, to handy converters, counters, and everyday helpers.
One bookmarklet that opens a slide-out panel of 63 tools on any page — reading, cleanup, debugging, research, SEO, and direct page editing. No install, no extension store.
Bookmarklet · 63 toolsA paper-calm AI sidebar for Firefox. Bring your own API key, pick your model, and let it read the page you're on.
Firefox ExtensionEverything is a bookmarklet or a static page. Nothing to download, nothing to sign up for, no data ever leaves your browser.
Click the bookmark on any site and get instant tools to read, clean up, debug, and edit whatever page you're on.
The catalog keeps expanding. Found a gap? Every tool lives client-side, so suggestions ship fast.