Mockoon vs Faker

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

Free and open source

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

Free and open source. You pay in engineering time and CI minutes.

The desktop app and CLI are free and open source.

Everything, self-hosted

Widely used

Mockoon · since 2017

Category standard

OSS community · since 2010

• 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.

• Realistic, locale-aware data catches layout bugs that 'test test test' never will.
• Seedable, so generated data is reproducible when a test fails.
• Available in every major language with a similar API.

• 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.

• Generated data has no referential integrity or business rules — that is your job.
• Random data makes failures harder to reproduce unless you seed deliberately.
• Not a substitute for production-shaped data at realistic volume.

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

Every project that needs fixtures more realistic than placeholder strings.