Best OpenAPI Mock Alternatives in 2026
Updated
20 apps from API mocking tools ranked against OpenAPI Mock on the same published basis.
- 1OpenAPI Mock vs WireMock
- 2OpenAPI Mock vs MockServer
- 3OpenAPI Mock vs Microcks
- 4OpenAPI Mock vs WireMock
- 5OpenAPI Mock vs Mockzilla
- 6OpenAPI Mock vs Mockfly
- 7OpenAPI Mock vs Mockoon
- 8OpenAPI Mock vs Mock Service Worker
- 9OpenAPI Mock vs moqapi.dev
- 10OpenAPI Mock vs Beeceptor
- 11OpenAPI Mock vs MockAPI
- 12OpenAPI Mock vs Imposter
- 13OpenAPI Mock vs Hoverfly
- 14OpenAPI Mock vs json-server
- 16OpenAPI Mock vs OpenAPI Server
- 17OpenAPI Mock vs Knockout API
- 18OpenAPI Mock vs Stoplight Prism
- 19OpenAPI Mock vs Mocki
- 20OpenAPI Mock vs Mockttp
- 21OpenAPI Mock vs Mirage JS
OpenAPI Mock alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | WireMock | 8.0 | Free plan | Free | API, Linux, self-hosted, Web |
| 2 | MockServer | 7.9 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 3 | Microcks | 7.9 | Free plan | Free | API, Browser, Linux, Mac, self-hosted, Web, Windows |
| 4 | WireMock | 7.8 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 5 | Mockzilla | 7.3 | Free plan | $10/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 6 | Mockfly | 7.2 | Free plan | €15/mo | API, Browser, Linux, self-hosted, Web |
| 7 | Mockoon | 7.1 | No | €10/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 8 | Mock Service Worker | 7.1 | No | — | self-hosted, Web |
| 9 | moqapi.dev | 7.1 | Free plan | $29/mo | API, Web |
| 10 | Beeceptor | 7.0 | No | — | Web |
| 11 | MockAPI | 7.0 | Free plan | $2.92/mo | API, Web |
| 12 | Imposter | 6.8 | No | — | Linux, Mac, self-hosted, Windows |
| 13 | Hoverfly | 6.7 | No | $10/mo | API, Linux, Mac, self-hosted, Web, Windows |
| 14 | json-server | 6.4 | Free plan | Free | API, self-hosted |
| 16 | OpenAPI Server | 6.1 | No | — | API, self-hosted |
| 17 | Knockout API | 6.1 | Free plan | $0.02/mo | API, Web |
| 18 | Stoplight Prism | 6.0 | No | — | Web |
| 19 | Mocki | 5.8 | No | $15/mo | API, self-hosted, Web |
| 20 | Mockttp | 5.7 | Free plan | Free | Linux, Mac, self-hosted, Web, Windows |
| 21 | Mirage JS | 5.5 | No | — | Web |
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Questions about OpenAPI Mock alternatives
What is the best alternative to OpenAPI Mock?
WireMock, number 1 in API mocking tools with a score of 8.0 out of 10. The others here: MockServer, Microcks, WireMock and 16 more.
What is the best free alternative to OpenAPI Mock?
WireMock is the best-ranked alternative with a free plan. 11 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.