Two ways to deal with a bookmark bar that's gotten out of hand.
Scans your whole bookmarks file, groups entries that point at the same normalized URL, and shows every duplicate side by side.
The Safari Swipe extension overlays a slim bar at the top of every page with the next bookmark queued up — Keep or Delete, no folder-diving required.
Keeping a bookmark re-queues it 30 days later instead of marking it done forever, so review stays a habit, not a one-time purge.
Understands and preserves Safari's Reading List folder so cleanup never touches items you've saved to read later.
Every duplicate-resolution and full-review pass is snapshotted, so a bad Delete is always one click from being reversed.
Not ready to judge a bookmark? Dismiss the bar for the rest of the session without changing anything.