Best Test Data Management Software in 2026
Updated
In short: Metasyn is ranked #1 of 22 as of 4 October 2026, ahead of Windocks and MOSTLY AI. The best-ranked option with a free plan is Windocks. The lowest first paid tier on this page is Mockaroo at $5/mo.
Preparing dependable data for software tests can involve masking sensitive fields, selecting subsets, or generating synthetic records. Compare data masking and subsetting with synthetic data generation, refresh automation and API access to assess the workflows each tool supports. Deployment model, free-plan availability and paid-from pricing add practical and cost considerations. Metasyn, MOSTLY AI and Tonic Fabricate are among the options shown. Consider how your team creates and refreshes test datasets, and which environment it must run in, then use the listed features to compare products against those needs.
22 test data management software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
8 of the 22 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 | MetasynWindows · Mac · Linux · Self-hosted | Three bars | — | 3 of 6 | Free | 6.5 | |
| 2 | WindocksWeb · Windows · Linux · Self-hosted · API | Three bars | — | 3 of 6 | $499/mo | 6.5 | |
| 3 | MOSTLY AIWeb · Linux · Self-hosted · API | Two bars | — | 2 of 6 | Free | 6.4 | |
| 4 | MockarooWeb · Self-hosted · API | Two bars | — | 1 of 6 | $5/mo | 6.3 | |
| 5 | Tonic FabricateWeb · Self-hosted · API | Two bars | — | 1 of 6 | $29/mo | 6.3 | |
| 6 | Synthetic Data VaultSelf-hosted · API | Two bars | — | 0 of 6 | $250/mo | 6.2 | |
| 7 | BlazeMeterWeb · Linux · Self-hosted · API · Extension | One bar | — | — | 2 of 6 | $8.25/mo | 5.5 |
| 8 | Curiosity Software Enterprise Test DataWeb · Windows · Linux · Self-hosted · API | Two bars | — | — | 3 of 6 | — | 5.5 |
| 9 | DATPROFWeb · Windows · Linux · Self-hosted · API | Two bars | — | — | 3 of 6 | — | 5.5 |
| 10 | Perforce Delphix Test Data ManagementWeb · Linux · Self-hosted · API | One bar | — | — | 2 of 6 | — | 5.5 |
| 11 | SynthesizedWeb · Linux · Self-hosted · API | One bar | — | — | 2 of 6 | — | 5.4 |
| 12 | Data MaestroMac · Linux · Self-hosted | One bar | — | 2 of 6 | $12.42/mo | 5.2 | |
| 13 | DTM Data GeneratorWindows · Mac · Linux | Two bars | — | — | 3 of 6 | — | 5.2 |
| 14 | Redgate SQL ProvisionWeb · Windows · Linux · Self-hosted | Two bars | — | — | 3 of 6 | — | 5.2 |
| 15 | FakerForgeWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 16 | Informatica Product 360Web · Windows · Self-hosted · API | One bar | — | — | 2 of 6 | — | 5.1 |
| 17 | IRI DarkShieldWindows · Mac · Linux · Self-hosted · API | Two bars | — | — | 3 of 6 | — | 5.1 |
| 18 | Mage Data Test Data ManagementNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 19 | DatabucketSelf-hosted · API | One bar | — | 0 of 6 | Free | 5.0 | |
| 20 | Faker.jsWeb | No signal | — | — | 1 of 6 | — | 5.0 |
| 21 | GenRocketWeb · Self-hosted · API | One bar | — | — | 1 of 6 | — | 4.9 |
| 22 | Datanamic Data GeneratorWindows | No signal | — | — | 1 of 6 | — | 4.6 |
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 test data management software is ranked first on Freedom251?
Metasyn is ranked #1 of 22 with a score of 6.5. Windocks is second and MOSTLY AI third.
How many of these have a free plan?
8 of the 22 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Mockaroo has the lowest first paid tier we found: $5/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.