The best json-server alternatives

Mockzilla suits developers building frontends, integration tests, or demos who need configurable mock responses.

It suits developers, testers, and QA professionals working with API mocks for development, testing, integrations, CI pipelines, or customer demos.

Mockfly suits frontend, backend, mobile, QA, and testing engineers who need shared mock APIs.

The free tier is positioned for evaluation, side projects, and open-source work.

WireMock Cloud is intended for developers, testers, and AI coding agents building or validating software against simulated APIs.

Microcks suits API owners, developers, quality assurance teams, and platform engineers who need to mock or test APIs and microservices.

MockAPI suits developers, learners, and others who need REST endpoints and generated data for prototyping, testing, or learning.

MockServer suits developers and test teams that need self-hosted service virtualization, contract testing, or controlled fault injection.

Mockttp suits JavaScript developers who need HTTP mocking, proxying, or integration testing in Node.js or browsers.

It suits developers who need internal or basic tests for apps using the OkHttp client.

WireMock suits developers and teams that need to simulate APIs or services while building or testing dependent software.

Hoverfly suits development, functional testing, performance testing, contract testing, and service virtualization teams working with APIs.

It suits developers and teams who need mock endpoints from API specifications, along with tools for testing, authentication, or shared project access.

Prism suits development teams needing API mocks, contract validation, transformations, or proxy checks.