Deduplicate huge URL lists instantly. IndexVero can ignore case, www, and trailing slashes so near-identical links collapse into one — cleaning your list before it wastes credits or clutters a report.
Who it’s for
- Link builders trimming a list before paying to index or check it.
- SEOs merging several exports into one clean, unique list.
- Agencies making sure a report counts each backlink once, not three times.
- Anyone whose list came from multiple sources with formatting drift.
How it works
Paste your URLs
Drop in a list that may contain repeated or near-identical links.
Set normalization
Choose whether to ignore case, www, and trailing slashes when deciding what counts as a duplicate.
Copy the unique list
The deduplicated list appears instantly with a duplicate count. Copy all or download as TXT.
Example: the duplicates a plain de-dupe misses
| These four lines… | …are one URL |
|---|---|
| http://example.com/Page | example.com/page |
| https://example.com/page | |
| https://www.example.com/page/ | |
| https://example.com/page |
A plain text de-dupe keeps all four because the strings differ. Normalize first and they collapse to one.
Features
Smart duplicate matching
Treat http/https, www, casing, and trailing-slash variants as the same link so true duplicates are actually removed.
Keeps original order
The first occurrence of each URL is kept in place, so your list stays in the order you pasted it.
Instant, private & exportable
Deduplication runs live in your browser on lists of any size, and you can copy or download the clean result.
Why exact-match de-duplication isn’t enough
Copy a “remove duplicate lines” tool and it compares raw strings — so it keeps every version of a link that differs by a character your eyes ignore. The duplicates that survive:
- Protocol —
http://vshttps://. - www —
www.example.comvsexample.com. - Trailing slash —
/pagevs/page/. - Case — the host is case-insensitive, so
Example.comequalsexample.com.
Normalizing on these rules before de-duping is what actually shrinks the list — and it’s why cleaning tracking params with Clean URLs first makes the de-dupe even tighter. Fewer real duplicates means fewer wasted credits when you check or index the result.
Limitations & privacy
- Normalization treats www/case/slash/protocol variants as equal on request; it won’t merge genuinely different pages that happen to look similar.
- It doesn’t strip query parameters — run Clean URLs first if tracking params are splitting your duplicates.
- De-duplication runs live in your browser; your list stays on your machine.
FAQ
How does duplicate detection work?
Each line is normalized using your chosen rules (case, www, trailing slash) and the first occurrence of each normalized key is kept; later repeats are removed.
Will it treat www and non-www as duplicates?
If you enable “Ignore www”, then example.com/page and www.example.com/page are treated as the same URL and collapsed to one.
Does it keep the original order?
Yes. The tool preserves the order of first appearance, so your list structure is maintained after dedup.
How big a list can I dedupe?
Because it runs live in your browser, you can deduplicate very large lists instantly without waiting on a server job.