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testcritic

Mockaroo vs Tonic.ai

Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.

Entry price

From $60 per year (indicative, Silver)

Free tier

Quote on request

Quote only

What drives the bill

The metric that actually scales your invoice.

Cheap for what it does; higher tiers raise row limits and add API quota.

Enterprise quote-based pricing by data volume and connected databases.

Free tier

Free for up to 1,000 rows per download and a limited number of saved schemas.

Free trial.

Open source

Self-hostable

No-code authoring

Languages

CodelessJavaScriptPython
CodelessPython

Platforms

APIWeb
API

Fits teams

Solo / side projectStartupScale-up / mid-market
Scale-up / mid-marketEnterprise

Adoption

Established

Mockaroo LLC · since 2014

Established

Tonic.ai · since 2018

Strengths

  • No code required — an analyst or tester can design a dataset themselves.
  • Very large library of realistic field types including regional formats.
  • Formula fields allow simple business rules between columns.
  • Preserves referential integrity and statistical distribution, so applications behave as they do in production.
  • Directly addresses the GDPR and HIPAA exposure created by production data in lower environments.
  • Subsetting produces a small but coherent slice rather than a full copy.

Limitations

  • Referential integrity across related tables is limited.
  • Free-tier row limits are low for realistic volume testing.
  • Data is generated on a third-party service, which needs a privacy check for schema sensitivity.
  • Expensive, with enterprise-only pricing.
  • Initial configuration of sensitive-field classification takes real effort.
  • Adds a pipeline stage that must be maintained as the schema evolves.

Best for

Quickly producing a realistic dataset for a demo, a load test or a new environment.

Organisations that currently copy production data into staging and know they should stop.

Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.