MockServerMock HTTP responses, match request bodies and verify recorded calls, saving expectations for repeatable tests.
Free local server · Apache-2.0 · No vendor call quota · Java runtime or own hosting
Developer tools
Mockoon
Free optionOpen sourceLocal
Serve local mock APIs with JSON responses, request-body rules and delayed errors, then reuse saved definitions.
What you can use it for
Serve local mock APIs with JSON responses, request-body rules and delayed errors, then reuse saved definitions.
- Run repeatable HTTP mocks without a hosted account or monthly request allowance.
- Save JSON environments and start them again in the CLI. A separate free desktop editor is available.
Workflow coverage and comparison notes
Run local HTTP API mocks for solo development and integration tests beyond WireMock Cloud’s 1,000 free calls/month. Checked GET/POST responses, JSON body matching, delayed errors and saved definitions. This is the local HTTP-mocking slice; it does not replace managed hosting, shared team editing, SSO, cloud integrations or every WireMock protocol and feature.
Before you switch
Hands-on checks cover the CLI, not the desktop editor. CLI requires Node.js 18+ and uses local CPU, memory and disk. Public hosting is your responsibility and may cost money. Mockoon Pro collaboration, sync and managed deployment are paid extras. No WireMock Cloud team-management or managed-hosting replacement is claimed.
Alternatives to these paid apps
Each comparison covers the workflow described above, rather than every paid feature.
More for the same workflow
See alternatives →MockServer