Best Test Data Generation Tools in 2026
Updated
In short: Benerator is ranked #1 of 28 as of 5 October 2026, ahead of YData SDK and dbForge Studio for PostgreSQL. The best-ranked option with a free plan is YData SDK. The lowest first paid tier on this page is Mockaroo at $5/mo.
Generating test data can help you exercise applications and databases without relying on production records. Compare the available generation modes, supported data formats, and relational data features, then check API data generation and database connectors for workflow fit. Deployment options and generation limits add practical distinctions, while free-plan availability and paid-from pricing help you assess cost. Benerator, YData SDK, and dbForge Studio for PostgreSQL are among the entries to consider. Match the listed capabilities to the data your tests need and how you intend to generate and use it.
28 test data generation tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
10 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 | BeneratorWindows · Mac · Linux · Self-hosted · API | Three bars | — | 3 of 6 | Free | 6.6 | |
| 2 | YData SDKWindows · Mac · Linux · Self-hosted · API | Three bars | — | 3 of 6 | Free | 6.6 | |
| 3 | dbForge Studio for PostgreSQLWindows · Mac · Linux | Three bars | — | 3 of 6 | $7.50/mo | 6.5 | |
| 4 | MOSTLY AIWeb · Linux · Self-hosted · API | Two bars | — | 2 of 6 | Free | 6.5 | |
| 5 | DummyJSONWeb · API | Two bars | — | 1 of 6 | Free | 6.4 | |
| 6 | MimesisLinux | Two bars | — | 1 of 6 | Free | 6.4 | |
| 7 | MockarooWeb · Self-hosted · API | Two bars | — | 1 of 6 | $5/mo | 6.4 | |
| 8 | Tonic FabricateWeb · Self-hosted · API | Two bars | — | 1 of 6 | $29/mo | 6.4 | |
| 9 | Synthetic Data VaultSelf-hosted · API | Two bars | — | 0 of 6 | $250/mo | 6.3 | |
| 10 | FisheryNo platforms listed | Two bars | — | 0 of 6 | Free | 6.2 | |
| 11 | SynthesizedWeb · Linux · Self-hosted · API | One bar | — | — | 2 of 6 | — | 5.5 |
| 12 | GeneratedataWeb · Self-hosted | One bar | — | — | 1 of 6 | — | 5.4 |
| 13 | JSON Schema FakerWeb · Windows · Mac · Linux | One bar | — | — | 4 of 6 | — | 5.4 |
| 14 | MockNeatAPI | One bar | — | — | 0 of 6 | — | 5.4 |
| 15 | BogusWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 5.3 |
| 16 | Faker.jsWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 17 | RandomUserWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 18 | Redgate SQL ProvisionWeb · Windows · Linux · Self-hosted | Two bars | — | — | 3 of 6 | — | 5.2 |
| 19 | Chance.jsWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 20 | DatafakerNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 21 | factory_boyNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 22 | FakerNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 23 | GoFakeItNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 24 | SnowfakeryNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 25 | SyntheaNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Generation modes | Relational data |
|---|---|---|---|---|---|---|---|---|
| 1 | Benerator | 6.6 | Free plan | Free | Yes | — | synthetic | Yes |
| 2 | YData SDK | 6.6 | Free plan | Free | Yes | — | — | Yes |
| 3 | dbForge Studio for PostgreSQL | 6.5 | Free plan | $7.50/mo | Yes | — | — | — |
| 4 | MOSTLY AI | 6.5 | Free plan | Free | Yes | — | synthetic | Yes |
| 5 | DummyJSON | 6.4 | Free plan | Free | Yes | — | synthetic | Yes |
| 6 | Mimesis | 6.4 | Free plan | Free | — | — | synthetic | Yes |
| 7 | Mockaroo | 6.4 | Free plan | $5/mo | Yes | — | synthetic | Yes |
| 8 | Tonic Fabricate | 6.4 | Free plan | $29/mo | Yes | 29 /mo | synthetic | Yes |
| 9 | Synthetic Data Vault | 6.3 | Free plan | $250/mo | Yes | — | synthetic | Yes |
| 10 | Fishery | 6.2 | Free plan | Free | Yes | — | — | Yes |
| 11 | Synthesized | 5.5 | No | — | Yes | — | synthetic | Yes |
| 12 | Generatedata | 5.4 | No | — | Yes | — | synthetic | Yes |
| 13 | JSON Schema Faker | 5.4 | No | — | — | — | synthetic | No |
| 14 | MockNeat | 5.4 | No | — | Yes | — | synthetic | Yes |
| 15 | Bogus | 5.3 | No | — | Yes | — | synthetic | — |
| 16 | Faker.js | 5.2 | No | — | Yes | — | synthetic | No |
| 17 | RandomUser | 5.2 | No | — | Yes | — | synthetic | — |
| 18 | Redgate SQL Provision | 5.2 | No | — | No | — | — | — |
| 19 | Chance.js | 5.1 | No | — | Yes | — | synthetic | — |
| 20 | Datafaker | 5.1 | No | — | Yes | — | synthetic | — |
| 21 | factory_boy | 5.1 | No | — | — | — | synthetic | Yes |
| 22 | Faker | 5.1 | No | — | Yes | — | synthetic | No |
| 23 | GoFakeIt | 5.1 | No | — | — | — | synthetic | No |
| 24 | Snowfakery | 5.1 | No | — | — | — | synthetic | Yes |
| 25 | Synthea | 5.1 | No | — | Yes | — | synthetic | Yes |
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 test data generation tool is ranked first on Freedom251?
Benerator is ranked #1 of 28 with a score of 6.6. YData SDK is second and dbForge Studio for PostgreSQL third.
How many of these have a free plan?
10 of the 25 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.