Mockoon vs Tonic.ai

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

Quote on request

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

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

The desktop app and CLI are free and open source.

Free trial.

Widely used

Mockoon · since 2017

Established

Tonic.ai · since 2018

• 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.

• 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.

• 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.

• 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.

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

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