Best Test Data Generation Tools in 2026
Updated
In short: dbForge Studio for PostgreSQL is ranked #1 of 28 as of 4 October 2026, ahead of Mockaroo and Benerator. The best-ranked option with a free plan is Mockaroo. The lowest first paid tier on this page is Mockaroo at $5/mo.
Creating test data involves choices about data formats, generation approaches, and how generated data fits into a development workflow. Compare generation modes and limits alongside supported formats, API data generation, and database connectors. Relational data support and deployment choices can also distinguish the tools, while free-plan availability and paid-from prices help you assess cost. Mockaroo, MOSTLY AI, and Benerator lead the ranked entries, with Synthesized and Tonic Fabricate following. Check which listed capabilities suit your test cases and where data needs to go, then weigh those needs against each tool's formats, integration options, limits, and pricing.
28 test data generation tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
#1 dbForge Studio for PostgreSQL Top pick · 7.8 Free plan · $7.50/mo
#2 Mockaroo Runner-up · 7.6 Free plan · $5/mo
#3 Benerator Also great · 7.3 Free plan · Free
- Free planFree trial LinuxmacOSWindows
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms$7.50/mofirst paid tier About dbForge Studio for PostgreSQLVisit site - Free planFree trial apiself-hostedWeb
- Free plan
- Yes
- Generation modes
- synthetic
- Relational data
- Yes
- API data generation
- Yes
- Supported data formats
- CSV, JSON, SQL, Excel, TXT, custom-delimited text, XML
RecognisedDocumentedFree planFree trialPlatforms$5/mofirst paid tier About MockarooVisit site - Free plan apiLinuxmacOSself-hostedWindows
- Free plan
- Yes
- Generation modes
- synthetic
- Relational data
- Yes
- API data generation
- Yes
- Supported data formats
- CSV, Excel, fixed-width, JSON, XML, DbUnit, SQL
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiLinuxmacOSself-hostedWindows
- Free plan
- Yes
- Relational data
- Yes
- API data generation
- Yes
- Supported data formats
- CSV, Parquet, PDF, DOCX, HTML
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiLinuxself-hostedWeb
- Free plan
- Yes
- Generation modes
- synthetic
- Relational data
- Yes
- API data generation
- Yes
- Supported data formats
- CSV, Parquet, XLSX
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiself-hostedWeb
- Free plan
- Yes
- Paid from
- 29 /mo
- Generation modes
- synthetic
- Relational data
- Yes
- API data generation
- Yes
- Supported data formats
- CSV, JSON, XML, SQL, PDF, DOCX, EML, relational databases, Apache Avro, Apache Iceberg, Apache Parquet
RecognisedDocumentedFree planFree trialPlatforms$29/mofirst paid tier About Tonic FabricateVisit site - Free plan apiWeb
- Free plan
- Yes
- Generation modes
- synthetic
- Relational data
- Yes
- API data generation
- Yes
- Supported data formats
- JSON
RecognisedDocumentedFree planFree trialPlatforms - Free trial Linuxself-hostedWebWindows
- Free plan
- No
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiself-hosted
- Free plan
- Yes
- Generation modes
- synthetic
- Relational data
- Yes
- API data generation
- Yes
- Supported data formats
- CSV, Excel, pandas DataFrame, JSON metadata
RecognisedDocumentedFree planFree trialPlatforms$250/mofirst paid tier About Synthetic Data VaultVisit site - apiLinuxself-hostedWeb
- Free plan
- Yes
- Generation modes
- synthetic
- Relational data
- Yes
- API data generation
- Yes
- Supported data formats
- PostgreSQL, Oracle, MySQL, SQLite, Microsoft SQL Server, Snowflake, DB2 LUW, CSV, XML, SAP HANA
RecognisedDocumentedFree planFree trialPlatforms - apiself-hostedWeb
- Free plan
- No
- Relational data
- Yes
- API data generation
- Yes
- Supported data formats
- SQL, NoSQL, XML, JSON, REST API, CSV, EDI, Kafka, SOAP, Parquet, Avro
RecognisedDocumentedFree planFree trialPlatforms - WebWindowsmacOSLinux
- Generation modes
- synthetic
- Relational data
- No
- API data generation
- Yes
- Supported data formats
- JSON, YAML
RecognisedDocumentedFree planFree trialPlatforms - api
- Free plan
- Yes
- Generation modes
- synthetic
- Relational data
- Yes
- API data generation
- Yes
- Supported data formats
- JSON, XML, CSV, SQL
RecognisedDocumentedFree planFree trialPlatforms - WindowsmacOSLinux
- Free plan
- Yes
- Generation modes
- synthetic
- Supported data formats
- JSON
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- Yes
- Generation modes
- synthetic
- Relational data
- No
- API data generation
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- Yes
- Generation modes
- synthetic
- Relational data
- Yes
- Supported data formats
- JSON, CSV, SQL, XML, HTML, JavaScript, TypeScript, PHP, Perl, C#, Ruby, Python
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- Yes
- Generation modes
- synthetic
- API data generation
- Yes
- Supported data formats
- JSON, PrettyJSON, CSV, YAML, XML
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- Yes
- Generation modes
- synthetic
- API data generation
- Yes
RecognisedDocumentedFree planFree trialPlatforms -
- Free plan
- Yes
- Generation modes
- synthetic
- API data generation
- Yes
- Supported data formats
- CSV, JSON, SQL, YAML, XML, Java Object, TOML
RecognisedDocumentedFree planFree trialPlatforms -
- Generation modes
- synthetic
- Relational data
- Yes
- API data generation
- Yes
RecognisedDocumentedFree planFree trialPlatforms -
- Free plan
- Yes
- Generation modes
- synthetic
- Relational data
- No
- API data generation
- Yes
- Supported data formats
- JSON, CSV, DSV, PSV, TSV, fixed-width, binary, XML
RecognisedDocumentedFree planFree trialPlatforms -
- Generation modes
- synthetic
- Relational data
- No
- API data generation
- Yes
- Supported data formats
- CSV, JSON, XML
RecognisedDocumentedFree planFree trialPlatforms -
- Generation modes
- synthetic
- Relational data
- Yes
- API data generation
- Yes
- Supported data formats
- JSON, TXT, CSV, SQL, DOT, SVG, SVGZ, JPEG, PS, PNG
RecognisedDocumentedFree planFree trialPlatforms -
- Free plan
- Yes
- Generation modes
- synthetic
- Relational data
- Yes
- Supported data formats
- HL7 FHIR R4; HL7 FHIR STU3; HL7 FHIR DSTU2; Bulk FHIR NDJSON; C-CDA; CSV; CPCDS
RecognisedDocumentedFree planFree trialPlatforms -
- Generation modes
- synthetic
- Relational data
- Yes
- Supported data formats
- JSON, XML, CSV, pickle
RecognisedDocumentedFree planFree trialPlatforms
Is your platform 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 generation tool is ranked first on The Geeks Club?
dbForge Studio for PostgreSQL is ranked #1 of 28 with a score of 7.8. Mockaroo is second and Benerator third.
How many of these have a free plan?
8 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 on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on. Paid placements never change a rank.