Privacy policy

Last updated: November 6, 2026 · Swarmline version 1.0.0

Swarmline is a Chrome extension that plays an animation of the current web page being built by a swarm. It does not collect, store, sell or share any personal data.

What Swarmline does with the page

It only runs when you ask. Swarmline uses Chrome's activeTab permission, so it can access only the tab where you click its toolbar button or press its shortcut, and only at that moment. It has no access to your other tabs, your browsing history, or any site you haven't started it on.
Everything happens on your device. To play the animation, Swarmline reads the layout of the page in your browser (where elements are, their sizes and colours) and temporarily hides elements, then shows them again one by one. That information is used only for the animation, stays in that tab's memory, and is discarded when the animation ends, when you exit, or when you leave the page. The page is always left exactly as it was.
No servers, no tracking. Swarmline doesn't contact any server of its own or anyone else's, doesn't use analytics or tracking, and doesn't load remote code. The one thing it shows from the web is the open site's own icon (its favicon), in the toolbar, taken from that same site.
No storage. Nothing is saved to cookies, localStorage, chrome.storage or anywhere else.
No accounts, no ads, no selling of data.

Permissions

Permission	Why it's needed
`activeTab`	Run on the tab you started Swarmline on, and only that tab.
`scripting`	Add Swarmline's bundled animation script to that tab.

Children

Swarmline doesn't collect information from anyone, including children.

Changes

If this policy changes, the new version will be published at this address with a new date.

Contact

Questions about privacy: imperfxt@gmail.com