3 self-hosted Postman Mock alternatives

Postman Mock is a popular proprietary tool in the developer tools & git space. These open-source apps let you replace Postman Mock with software you host and control yourself.

Best self-hosted Postman Mock alternatives

json-server

Developer Tools & Git

Full fake REST API from a JSON file in seconds

Replaces Mockoon, Postman Mock

★ 75.7k Easy setup MIT

WireMock

Developer Tools & Git

Flexible API mocking and service virtualization

Replaces Mockoon, Postman Mock

★ 7.3k Medium setup Apache-2.0

Microcks

Developer Tools & Git

API mocking and testing for cloud-native development

Replaces Postman Mock, WireMock

★ 2k Medium setup Apache-2.0

Compare Postman Mock alternatives

Switching from Postman Mock

Moving off Postman Mock means trading a managed subscription for a service you run yourself. The payoff is ownership: no per-seat pricing, no vendor lock-in, and full control of your data. Start with the option above that matches your setup-difficulty comfort level — every app links to a detailed specs page and head-to-head comparisons.