Mockaroo vs Mockoon

From $60 per year (indicative, Silver)

From $9 per user/month (indicative, Cloud)

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

Free locally; the paid cloud tier adds hosted mocks and team sync.

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

The desktop app and CLI are free and open source.

Established

Mockaroo LLC · since 2014

Widely used

Mockoon · since 2017

• 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.

• Genuinely a minute from download to a working mock API.
• Dynamic templating with faker-style helpers produces realistic responses.
• Proxy mode mocks only the routes you need and passes the rest through.

• 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.

• Desktop-first; sharing mocks across a team needs the paid cloud or a committed config file.
• HTTP only.
• Less suited to complex stateful behaviour than WireMock.

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

Front-end developers unblocking themselves while a backend is still being built.