Mockoon and WireMock logos side by side

Comparison between Mockoon and WireMock API mocking

Discover the differences between WireMock API mocking and Mockoon's desktop application and CLI mocking features

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WireMock is a mocking or stubbing Java library. It enables developers to create mock REST APIs programmatically in their Java applications. Coupled with WireMock Studio, it allows to intercept and proxy requests, or create mock endpoints from the entering requests. The mock API endpoints can account for realistic use cases thanks to a request matching system and a templating language similar to Mockoon's one. WireMock's stubs can also be deployed online using their cloud offering, MockLab.

While Mockoon provides a similar mocking experience, it has a different approach as it offers an offline, privacy-friendly desktop application. Accompanied by a CLI that allows you to deploy your REST mocks anywhere, it gives the power needed to automate your API development and testing. Mockoon is easy to use and has no learning curve. You can easily start using it and create your first mock API in under a minute. From a powerful templating system to generate dynamic and realistic mock data to a proxy mode to partially mock API endpoints, Mockoon takes API mocking to the next level. It also offers many customization options: status codes, dynamic headers, rules system, etc.

What is API mocking for? Discover the different use cases or read our API mocking guide.

WireMock (left) and Mockoon (right) UIs side by sideWireMock (left) and Mockoon (right) UIs side by side

Features comparison

FeaturesWireMockMockoon
Offline/Cloud basedOffline
Java library or desktop application with WireMock Studio (Cloud offering: MockLab)
Offline (desktop application)
Deploy anywhere with the CLI and Docker image
Free/paid serviceFreeFree
Open-source
CLI
Java application can be run with the command line

A CLI and a Docker image are available
Proxy mode
Can intercept and forward the traffic

Documentation
OpenAPI support
Documentation
Recording
Can record entering requests to create stubs

Mockoon can create mock endpoints based on entering requests
Response rules
Request matching system similar to Mockoon's one

Advanced system of rules
Dynamic/realistic data
Templating system similar to Mockoon's one

Advanced templating system to generate realistic fake data
File servingBasic static file serving from dedicated directory
Documentation
Custom headers
At endpoint's level

At endpoint's and server's levels
Supports templating helpers for dynamically generated headers
Customizable status code
Route regex
Documentation
GraphQL support
CORS and pre-flight handling
Manual setup

Automatically answers 200 to OPTIONS pre-flight requests
Headers can be customized
Slow network/server simulation
At endpoint's level

At server's and endpoint's levels