tab-labeler

Tab Labeler renames your browser tabs. You give a tab a custom label, optionally with an emoji, and it sticks across reloads so a wall of identical localhost tabs becomes readable again. It is a Manifest V3 extension for Chrome, Edge, and Brave, MIT licensed and free, with no backend, no tracking, and no sync.

There is almost nothing to set up if you grab a store build; from source it is an npm install, a build, and loading the unpacked folder. Everything is stored locally in the browser. Quick presets like Done and Important plus a keyboard shortcut keep daily use fast. That is the whole tool, and it does not pretend to be more.

If you live in dozens of tabs and lose track of which is which, this scratches a specific itch for free. It is not a session manager and will not group, suspend, or restore tabs, so if you need that, look at OneTab or a full session manager instead. The catch is scope: it labels tabs and nothing else. For some people that is exactly enough, and for others it is one small feature of a bigger tool they already run.