1.mswjs / msw
The industry standard for API mocking in JavaScript.
+16 stars
from 18,310 · score 2.83
Trending repositories
Ranked by Attention Score: stars gained over the last 7 complete days
17 repositories by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
2.mockoon / mockoon
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
+9 stars
from 8,458 · score 2.30
3.godot-gdunit-labs / gdUnit4
Embedded unit testing framework for Godot 4 supporting GDScript and C#. Features test-driven development, embedded test inspector, extensive assertions, mocking, scene testing.
+8 stars
from 1,278 · score 2.20
4.stretchr / testify
A toolkit with common assertions and mocks that plays nicely with the standard library
+7 stars
from 26,233 · score 2.08
5.stoplightio / prism
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
+7 stars
from 5,057 · score 2.08
6.wiremock / wiremock
A tool for mocking HTTP services
+6 stars
from 7,409 · score 1.95
7.vektra / mockery
A mock code autogenerator for Go
+6 stars
from 7,169 · score 1.95
8.pester / Pester
Pester is the ubiquitous test and mock framework for PowerShell.
+6 stars
from 3,366 · score 1.95
9.microcks / microcks
The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀
+6 stars
from 2,067 · score 1.95
10.SpectoLabs / hoverfly
Lightweight service virtualization/ API simulation / API mocking tool for developers and testers
+5 stars
from 2,528 · score 1.79
11.mockery / mockery
Mockery is a simple yet flexible PHP mock object framework for use in unit testing with PHPUnit, PHPSpec or any other testing framework. Its core goal is to offer a test double framework with a succinct API capable of clearly defining all possible object operations and interactions using a human readable Domain Specific Language (DSL).
+2 stars
from 10,723 · score 1.10
12.nsubstitute / NSubstitute
A friendly substitute for .NET mocking libraries.
+2 stars
from 2,981 · score 1.10
13.matryer / moq
Interface mocking tool for go generate
+2 stars
from 2,204 · score 1.10
14.AliSoftware / OHHTTPStubs
Stub your network requests easily! Test your apps with fake network data and custom response time, response code and headers!
+1 stars
from 5,065 · score 0.69
15.3lvis / Networking
Swift HTTP Networking with stubbing and caching support
+1 stars
from 1,380 · score 0.69
16.tonerdo / pose
Replace any .NET method (including static and non-virtual) with a delegate
+1 stars
from 1,105 · score 0.69
17.tianchangNorth / pocket-mocker
In-page HTTP controller for frontend development. Intercept, modify, and simulate API responses directly in the browser.
+1 stars
from 524 · score 0.69