Best Data Deduplication Software in 2026
Updated
In short: Tilores is ranked #1 of 27 as of 4 October 2026, ahead of Plauti Deduplicate and Zingg. The best-ranked option with a free plan is Plauti Deduplicate. The lowest first paid tier on this page is DataGroomr at $33.25/mo.
Repeated records in sales and CRM data can be hard to manage, so deduplication tools are worth comparing on how they find and handle matches. This ranked selection opens with Tilores, Zingg and Plauti Deduplicate. Check fuzzy matching, automatic merging and duplicate prevention to understand the approaches represented. CRM integrations and API access may help you assess how an option relates to your existing systems; a merge review workflow is another factor if changes need oversight. Free-plan availability and the starting paid price add cost points to weigh against those capabilities. DataMatch Enterprise, OneMerge, Koalify, DQE One Unify and Data8 Duplicare are also among the first entries.
27 data deduplication software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
3 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | TiloresWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | Free | 6.7 | |
| 2 | Plauti DeduplicateWeb · Self-hosted · API | Two bars | — | 1 of 6 | Free | 6.4 | |
| 3 | ZinggLinux · Self-hosted | Two bars | — | 1 of 6 | Free | 6.4 | |
| 4 | WorkbooksWeb · Android · iPhone | Two bars | — | — | 3 of 6 | $47/mo | 5.6 |
| 5 | DQE One UnifyWeb · Windows · Self-hosted · API | One bar | — | — | 2 of 6 | — | 5.5 |
| 6 | RWindows · Mac | One bar | — | — | 2 of 6 | — | 5.5 |
| 7 | DemandToolsWindows | One bar | — | — | 1 of 6 | — | 5.4 |
| 8 | DupeCatcherWeb · Android · iPhone | One bar | — | — | 3 of 6 | — | 5.4 |
| 9 | Reltio Multidomain Master Data ManagementWeb · API | One bar | — | — | 1 of 6 | — | 5.4 |
| 10 | Senzing Entity ResolutionWeb · Windows · Mac · Linux · Self-hosted · API | One bar | — | — | 4 of 6 | $4,880/mo | 5.4 |
| 11 | dedupeWindows · Mac · Linux · Self-hosted · API | One bar | — | — | 3 of 6 | — | 5.3 |
| 12 | DataMatch EnterpriseWeb · Windows · Linux · Self-hosted · API | Two bars | — | — | 3 of 6 | — | 5.2 |
| 13 | EntifyWeb · Self-hosted · API | No signal | — | — | 1 of 6 | — | 5.2 |
| 14 | KoalifyWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 15 | Posidex Customer Entity Resolution and MatchingNo platforms listed | One bar | — | — | 0 of 6 | — | 5.2 |
| 16 | pyJedAIWindows · Linux | No signal | — | — | 2 of 6 | — | 5.2 |
| 17 | InsycleWeb | One bar | — | — | 1 of 6 | $100/mo | 5.1 |
| 18 | LinkTransformerNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 19 | OneMergeNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 20 | CloudingoWeb · API | One bar | — | — | 1 of 6 | $208.33/mo | 5.0 |
| 21 | DataGroomrWeb · API | One bar | — | — | 1 of 6 | $33.25/mo | 5.0 |
| 22 | Python Record Linkage ToolkitNo platforms listed | No signal | — | — | 0 of 6 | — | 5.0 |
| 23 | SplinkNo platforms listed | No signal | — | — | 0 of 6 | — | 5.0 |
| 24 | D&B HooversAPI | One bar | — | — | 0 of 6 | $44.08/mo | 4.9 |
| 25 | Data8 DuplicareWeb | One bar | — | — | 1 of 6 | — | 4.9 |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which data deduplication software is ranked first on Freedom251?
Tilores is ranked #1 of 27 with a score of 6.7. Plauti Deduplicate is second and Zingg third.
How many of these have a free plan?
3 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, DataGroomr has the lowest first paid tier we found: $33.25/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.