Most popular Mocking framework for unit tests written in Java

A tool for mocking HTTP services

PowerMock is a Java framework that allows you to unit test code normally regarded as untestable.

The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation sandbox project 🚀

MockNeat - the modern faker lib.

Advanced Java library for integration testing, mocking, faking, and code coverage

Gradle plugin to be used in combination with the new unit testing feature of the Gradle Plugin / Android Studio to use real classes for e.g. SparseArray.

Castle Mock is a web application that provides the functionality to mock out RESTful APIs and SOAP web services.

Provides fake data to your Android apps :)

Mock your data for Okhttp and Retrofit in json format in just a few moves

Unlogged SDK for recording JAVA code execution

Java binding for Hoverfly

A gRPC Java testing tool to easily mock endpoints of gRPC services for IT or Unit testing

Mock facility for Spring Data repositories

Learn Mockito from In28Minutes

An Android library that provides the ability to mock your final classes on Android devices.

Sample project for "Test-driven Spring Boot applications" training.

gRPC Mock Server

Dynamic API, S3 & Mail mocking for web, mobile & microservice development.

Mockito add-ons leveraging Java 8 and lambda expressions to make mocking even more compact