Seen It — Hide Items You've Already Seen

Mark items on feeds and listings as seen, and dim or hide links you've already visited. 100% local — history stays on your device.

Seen It helps you stop re-reading the same links, posts, and listings. It marks the items you have already seen and dims, greys, strikes, or hides them, so your eye goes straight to what is new. How it works: - On search results, forums, feeds, and job boards, Seen It quietly detects the links you have already visited and fades them back, using your own local browsing history. - Click any item to mark it as seen by hand, or unmark it if you change your mind. This is handy for listings and feeds where you want to keep track of what you have already checked. - Choose how seen items look: Dim or Grey to keep them visible but quiet, or Strike, Badge, and Hide to push them further out of the way. - Set a dim strength and an accent color so the effect matches the sites you use every day. - Smart matching ignores tracking codes in links, so the same page is recognized even when its address changes slightly. - Turn Seen It on automatically for the sites you visit most, and leave it off everywhere else. Private by design: Your browsing history is read on your device and is never uploaded. Seen It makes a single network request, only to check a license key, and nothing else. There are no analytics, no tracking pixels, and no data selling. Seen It is free to use with the Dim and Grey styles and up to three automatic sites. A one-time Pro upgrade adds the Strike, Badge, and Hide styles, per-site style profiles, and unlimited automatic sites.