Duplicate finder

Catch bookmarks you’ve saved more than once and delete the extras

The duplicate finder scans every bookmark in your pod and groups together any that share the same URL. Each extra copy can be deleted in place, leaving you with one entry per page.

Where to start a scan

From the bookmarks page: open the ⋮kebab next to the collection picker and choose Find duplicate bookmarks. The scan covers the active collection only.
From account settings: open account settings and use the Scan button next to Find duplicate bookmarks.

Note: Duplicate finder is a Pro feature, kept consistent with the other bookmark-maintenance tools. The check itself runs entirely in your browser — no URLs are sent to the mnera.io server.

How URLs are matched

Two URLs count as duplicates when their normalized form is identical. Normalization applies in this order:

The host is lowercased and a leading www. is stripped.
The #fragment is removed.
Tracking query parameters are dropped: utm_*, fbclid,gclid, mc_cid, mc_eid, ref,ref_src, ref_url, yclid, msclkid,_hsenc, _hsmi.
A trailing slash on the path is removed (the root / is kept).

Everything else — protocol (http vs https), other query parameters, and case in the path — is treated as significant. Sohttps://Example.com/Page?utm_source=newsletter andhttps://www.example.com/Page/ are duplicates;https://example.com/search?q=react andhttps://example.com/search?q=vue are not.

Two ways to clean up a group

Each group shows every saved copy of the URL, with its title, description, and topics. You can either delete individual extras one at a time, or merge the group into a single entry that combines the metadata you want to keep.

Delete one at a time

Click Delete on the copies you want to remove and confirm. Once a group has only one bookmark left, it disappears from the list. This is the right move when the extras are obvious throwaways.

Merge a group

Click Merge in the group header to consolidate all copies into a single bookmark. The merge editor lets you pick:

Which entry to keep. Its URL becomes the surviving URL; the others are deleted. Defaults to the entry with the most topics.
One title. Pick from the unique titles across all copies.
One description. Pick from the unique descriptions, or (no description).
Topics. Multi-select — all topics from all copies are pre-selected; uncheck any you don't want on the merged bookmark.

Hit Merge & delete others to write the chosen metadata to the kept entry and delete the rest. The whole thing happens in a single write to your pod, so the file is never left in an inconsistent state.

Tip: Merging only stores one title and one description (the RDF bookmark model doesn't support multiples), but you can keep as many topics as you like.

What it does not do

It does not detect near-duplicates by title — only by URL.
It does not catch pages that have been replaced or moved to a different URL. For dead URLs, use the broken link checker.