Best Identity Resolution Software in 2026
Updated
In short: InterSystems IRIS is ranked #1 of 25 as of 7 October 2026, ahead of Splink and Hightouch. The best-ranked option with a free plan is Splink. The lowest first paid tier on this page is LiveRamp RampID at $1666.67/mo.
Identity resolution software helps reconcile records that may refer to the same person, household, or organization. Compared on matching approach, the entries also show household and organization matching, batch file import, and real-time API availability. Included records, free-plan access, and paid-from pricing help you assess the stated scope and cost. Options include InterSystems IRIS, Splink, and Hightouch, as well as Zingg. Consider how your systems receive identity data and which kinds of relationships you need to match, then compare the listed approaches and access details with those needs.
25 identity resolution software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
5 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 | InterSystems IRISWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | Free | 6.7 | |
| 2 | SplinkWindows · Mac · Linux · Self-hosted | Three bars | — | 3 of 6 | Free | 6.5 | |
| 3 | HightouchWeb · API | Two bars | — | 1 of 6 | Free | 6.4 | |
| 4 | pyJedAIWindows · Linux · Self-hosted | Two bars | — | 2 of 6 | Free | 6.4 | |
| 5 | ZinggLinux · Self-hosted | Two bars | — | 1 of 6 | Free | 6.4 | |
| 6 | Open Client Registry (OpenCR)Web · Windows · Mac · Linux · Self-hosted · API | Two bars | — | — | 4 of 6 | — | 5.6 |
| 7 | Senzing Entity ResolutionWeb · Windows · Mac · Linux · Self-hosted · API | Two bars | — | — | 4 of 6 | $4,880/mo | 5.6 |
| 8 | Treasure AI Composable CDPWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | — | 5.6 |
| 9 | NVECTAWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | — | 5.5 |
| 10 | Precisely Data Matching and Entity ResolutionWeb · Windows · Linux · Self-hosted | Two bars | — | — | 3 of 6 | — | 5.5 |
| 11 | Quantexa Entity ResolutionWeb · Self-hosted · API | One bar | — | — | 1 of 6 | — | 5.5 |
| 12 | Lexer Identity ResolutionWeb · API | One bar | — | — | 1 of 6 | — | 5.4 |
| 13 | DinMoWeb | One bar | — | — | 1 of 6 | — | 5.3 |
| 14 | Epsilon COREidNo platforms listed | One bar | — | — | 0 of 6 | — | 5.3 |
| 15 | Equifax Identity MatchingAPI | One bar | — | — | 0 of 6 | — | 5.3 |
| 16 | Merkury Identity ResolutionWeb | One bar | — | — | 1 of 6 | — | 5.3 |
| 17 | Semcasting Identity GraphAPI | One bar | — | — | 0 of 6 | — | 5.3 |
| 18 | TransUnion TruEmpower Identity Monitoring and ProtectionWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 19 | OpenEMPIWeb · Windows · Linux · Self-hosted · API | Two bars | — | — | 3 of 6 | — | 5.1 |
| 20 | Data LadderWindows · Self-hosted · API | One bar | — | — | 1 of 6 | — | 5.0 |
| 21 | Informatica Identity ResolutionWindows · Linux · Self-hosted | One bar | — | — | 2 of 6 | — | 5.0 |
| 22 | LiveRamp RampIDWeb · API | One bar | — | — | 1 of 6 | $1666.67/mo | 5.0 |
| 23 | TamrWeb · Self-hosted · API | One bar | — | — | 1 of 6 | — | 5.0 |
| 24 | Verato Universal MPIWeb · API | One bar | — | — | 1 of 6 | — | 5.0 |
| 25 | AWS Entity ResolutionWeb | No signal | — | — | 1 of 6 | — | 4.6 |
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Matching approach | Included records |
|---|---|---|---|---|---|---|---|---|
| 1 | InterSystems IRIS | 6.7 | Free plan | Free | — | — | hybrid | — |
| 2 | Splink | 6.5 | Free plan | Free | Yes | — | hybrid | — |
| 3 | Hightouch | 6.4 | Free plan | Free | Yes | — | — | — |
| 4 | pyJedAI | 6.4 | Free plan | Free | — | — | — | — |
| 5 | Zingg | 6.4 | Free plan | Free | Yes | — | — | — |
| 6 | Open Client Registry (OpenCR) | 5.6 | No | — | — | — | hybrid | — |
| 7 | Senzing Entity Resolution | 5.6 | No | $4,880/mo | — | — | — | — |
| 8 | Treasure AI Composable CDP | 5.6 | No | — | No | — | hybrid | — |
| 9 | NVECTA | 5.5 | No | — | — | — | — | — |
| 10 | Precisely Data Matching and Entity Resolution | 5.5 | No | — | — | — | hybrid | — |
| 11 | Quantexa Entity Resolution | 5.5 | No | — | — | — | hybrid | — |
| 12 | Lexer Identity Resolution | 5.4 | No | — | — | — | hybrid | — |
| 13 | DinMo | 5.3 | No | — | — | — | — | — |
| 14 | Epsilon COREid | 5.3 | No | — | — | — | hybrid | — |
| 15 | Equifax Identity Matching | 5.3 | No | — | — | — | hybrid | — |
| 16 | Merkury Identity Resolution | 5.3 | No | — | — | — | — | — |
| 17 | Semcasting Identity Graph | 5.3 | No | — | — | — | — | — |
| 18 | TransUnion TruEmpower Identity Monitoring and Protection | 5.2 | No | — | — | — | hybrid | — |
| 19 | OpenEMPI | 5.1 | No | — | No | — | hybrid | — |
| 20 | Data Ladder | 5.0 | No | — | No | — | hybrid | — |
| 21 | Informatica Identity Resolution | 5.0 | No | — | No | — | hybrid | — |
| 22 | LiveRamp RampID | 5.0 | No | $1666.67/mo | — | — | rules | — |
| 23 | Tamr | 5.0 | No | — | No | — | — | — |
| 24 | Verato Universal MPI | 5.0 | No | — | No | — | hybrid | — |
| 25 | AWS Entity Resolution | 4.6 | No | — | No | — | — | — |
Is your app on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which identity resolution software is ranked first on Freedom251?
InterSystems IRIS is ranked #1 of 25 with a score of 6.7. Splink is second and Hightouch third.
How many of these have a free plan?
5 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, LiveRamp RampID has the lowest first paid tier we found: $1666.67/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.