js.helico.app
Small scripts to drop onto any web page.
webcritter
A little critter falls onto the page, walks over it, and climbs and jumps onto elements to wreck them. It eats text, kicks buttons off the page, steals images, and turns headings into Comic Sans. It never clicks or submits anything. Reload the page to undo the damage.
Bookmarklet
Drag the webcritter button to your bookmarks bar, then click it on any site. Each click adds another critter.
On your own page
<script src="https://js.helico.app/webcritter.js"></script>
From the console
Paste the whole of webcritter.js into the devtools console.
webcritter.spawn() adds one more, and webcritter.stop() removes them all.
Won't start?
Some sites set a Content-Security-Policy that blocks outside scripts or WebAssembly. Pasting into the console gets past the first block, but not the second.