API Mocking Tools
Alternatives to Mockfly
The tools Specifiction weighs against Mockfly, from its list of api mocking tools, each with its plans, platforms and spec score.
- 01
Beeceptor It suits developers, testers, and QA professionals building or testing APIs, integrations, CI pipelines, and customer demos.
From $10/mo Free plan Web · Windows · macOS · Linux9.5 Visit Specs - 02
Microcks Microcks suits API owners, developers, quality assurance teams, and platform engineers who need API mocks, contract testing, or CI/CD checks.
Free plan Web · Windows · macOS · Linux8.9 Visit Specs - 03 MockAPI
MockAPI suits developers, testers, and learners who need temporary REST endpoints and generated data.
From $2.92/mo Free plan Web · API8.9 Visit Specs - 04 Mockzilla
Mockzilla suits developers building frontends, integration tests, or demos against mock APIs.
From $10/mo Free plan Open source Web · Windows · macOS · Linux8.9 Visit Specs - 05
Hoverfly It suits development and testing teams that need simulated HTTP/S services, scripted setup, or controlled failure behavior.
From $10/mo Free trial Web · Windows · macOS · Linux8.5 Visit Specs - 06 Knockout API
The Free plan is positioned for evaluation, side projects, and open-source work.
From $0.02/mo Free plan Web · API8.4 Visit Specs - 07
Mockoon It suits developers and teams building or testing API-dependent applications, including those that need automated mock runs.
From €10/mo Free trial Web · Windows · macOS · Linux8.4 Visit Specs - 08 Mocki From $15/mo Free trial Web · API · Self-hosted8.0 Visit Specs
- 09
MockServer MockServer suits teams that need to simulate dependencies, validate API contracts, or inject failures into test traffic.
Free plan Web · Windows · macOS · Linux8.0 Visit Specs - 10 json-server Free plan API · Self-hosted7.8 Visit Specs
- 11 Mockttp
Mockttp suits JavaScript developers building HTTP integration tests or custom proxies.
Free plan Web · Windows · macOS · Linux7.8 Visit Specs - 12 moqapi.dev From $29/mo Free plan Web · API7.8 Visit Specs
- 13 MockWebServer
MockWebServer suits Android developers writing Java or Kotlin tests for OkHttp-based applications.
Free plan Android7.7 Visit Specs - 14 Imposter Windows · macOS · Linux · Self-hosted7.6 Visit Specs
- 15
WireMock WireMock suits developers and test teams that need to work against simulated services or validate contract behavior.
Free plan Web · Linux · API · Self-hosted7.4 Visit Specs - 16
WireMock It suits developers, testers and AI coding agents that need simulated APIs for building and validating software.
Free plan Web · Windows · macOS · Linux7.4 Visit Specs - 17 Mirage JS Web7.3 Visit Specs
- 18
Stoplight Prism It suits teams developing frontend and backend work in parallel, validating API contracts, or virtualizing services before production.
Free plan Web · API · Self-hosted7.3 Visit Specs - 19 API-Mocked Self-hosted7.1 Visit Specs
- 20
Mock Service Worker Web · Self-hosted7.1 Visit Specs - 21 OpenAPI Server API · Self-hosted7.0 Visit Specs
- 22 MockPilot Browser extension6.9 Visit Specs
- 23 OpenAPI Mock Windows · Linux · Self-hosted6.8 Visit Specs
- 24 Pretender.js Web6.4 Visit Specs
- 25 Parasoft Virtualize Web · Windows · macOS · Linux5.7 Visit Specs