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Last checked September 1, 2026 · Deduptio is our product. Every claim about another tool comes from its public site or documentation and is linked in place — tell us if something is out of date.
Feature-by-feature comparisons of Deduptio against the other ways to handle duplicates in Attio — including the ones that cost nothing. Every claim about another product links to its public site, with pricing dated.
Start with the free option. Attio's built-in merge handles a handful of obvious duplicates in seconds and costs nothing. It is worth knowing exactly where it stops before paying anyone, including us.
Looking for a tool that does not support Attio?
Insycle, Dedupely, Cloudingo and DemandTools are the names most people arrive with. None of them connects to Attio — see what replaces each one, job by job.
New to the problem?
Read the complete Attio deduplication guide first: native detection limits, match-rule design, survivor selection, safe merging, and the post-merge checks. The guides index has one page per specific question — bulk merging, duplicate companies, undoing a merge — and the migration cluster covers duplicates that arrived with your data.
See what is duplicated before changing anything
Connect your Attio workspace, write one match rule, and run a scan. Scans are read-only — you see every group and the reason it matched before anything is merged.
Start a free Attio duplicate scan