Top 20 Java testing-tool Projects

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1. Mockito

   1 14 15,431 8.4 Java

   Most popular Mocking framework for unit tests written in Java

   

   Project mention: Stepping down as Mockito maintainer after 10 years | news.ycombinator.com | 2025-12-28

   > Is there a point at which library maintainer feedback would meaningfully influence a by-default JVM change?

   Of course, just keep in mind that all these changes were and are being done in response to feedback from others. When you have such a large ecosystem, users can have contradictory demands and sometimes it's impossible to satisfy everyone simultaneously. In those cases, we try to choose whatever we think will do the most good and the least harm over the entire ecosystem.

   > JPMS is a good example: --add-opens still remains valuable today for important infra like Hadoop, Spark, and Netty. If other, even more core projects (e.g. Arrow) hadn't modernized, the exceptions would be even more prolific.

   I think you have answered yourself. Make sure the libraries you rely on are well maintained, and if not - support them financially. BTW, I think that Netty is also abandoning its hacking of internals.

   > If libraries so heavily depended upon like Mockito are unable to offer a viable alternative in response to JEP 451

   But they have, and we advised them on how: https://github.com/mockito/mockito/issues/3037

   The main "ergonomic" issue was lack of help from build tools like Gradle/Maven.

2. SaaSHub

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   SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

   

3. Karate

   2 30 8,877 8.0 Java

   Test Automation Made Simple

   

   Project mention: Karate – Test Automation Made Simple | news.ycombinator.com | 2025-09-10

4. testsigma

   3 24 1,194 4.0 Java

   Testsigma is an agentic test automation platform powered by AI-coworkers that work alongside QA teams to simplify testing, accelerate releases and improve quality across web, mobile, desktop, API, and applications like Salesforce and SAP.

   

   Project mention: Competitive Analysis of 15 AI Testing Tools Pricing, Core Features, and Common User Complaints | dev.to | 2026-04-15

   Official product: https://testsigma.com/

5. chaos-monkey-spring-boot

   4 1 941 8.6 Java

   Chaos Monkey for Spring Boot

   

6. certificate-ripper

   5 18 911 9.0 Java

   🔐 A CLI tool to extract server certificates

   

   Project mention: Certificate Ripper v2.6.0 released – tool to extract server certificates | news.ycombinator.com | 2025-12-07

7. AREX Test

   6 1 549 2.9 Java

   Lightweight Java agent for traffic capture and replay, enhancing testing and debugging.

   

8. DeepfakeHTTP

   7 34 528 1.8 Java

   DeepfakeHTTP is a web server that uses HTTP dumps as a source for responses.

   

9. junit-dataprovider

   8 0 248 7.8 Java

   A TestNG like dataprovider runner for JUnit with many additional features

   

10. Hoverfly Java

    9 0 175 2.9 Java

    Java binding for Hoverfly

    

11. Scott Test Reporter

    10 0 139 2.4 Java

    Never debug a test again: Detailed failure reports and hassle free assertions for Java tests - Power Asserts for Java (by dodie)

    

12. ngrok-spring-boot-starter

    11 2 133 4.9 Java

    🚀 Spring Boot tunneling with Ngrok made easy! No matter if you are using Windows, Mac OS X, Linux or even Docker - ngrok binary will be chosen automatically 🤖 so you don't need to care about environment changing etc. auto-configuration magic 🧙‍♂️

    

13. Mockey

    12 1 123 1.9 Java

    Mockey is a tool for testing application interactions over http, with a focus on testing web services, specifically web or native applications that consume XML, JSON, and HTML. Mockey's purpose is to be a simple front end to writing mock-test-responses to the file system for persistence to git.

    

14. beanmother

    13 0 121 0.0 Java

    A library for setting up Java objects as test data.

    

15. shadow-automation-selenium

    14 1 116 8.5 Java

    This project focuses on automation of multi-level shadow root dom using java selenium. You can embed this plugin in your java selenium project.

    

16. scalatest-junit-runner

    15 1 37 3.5 Java

    JUnit 5 runner for Scalatest

    

17. allure-environment-writer

    16 1 25 3.2 Java

    Java library which allows to write environment.xml file into allure-results directory.

    

18. hibernate-query-asserts

    17 1 16 5.0 Java

    Assert SQL statement count generated by Hibernate in Spring tests

    

19. certy-tutorial

    18 1 1 3.4 Java

    This project provides a tutorial for generating certificates for development and testing.

    

20. junit-pioneer-frontiers-pushed

    19 1 0 0.0 Java

    JUnit Pioneer - Frontiers Pushed

    

21. embedqa

    20 1 0 7.5 Java

    API Testing Platform

    

    Project mention: Building EmbedQA: An Open Source API Testing Tool with Spring Boot 🚀 | dev.to | 2026-01-12

    EmbedQA GitHub Repository

Java testing-tools related posts

• Competitive Analysis of 15 AI Testing Tools Pricing, Core Features, and Common User Complaints

  1 project | dev.to | 15 Apr 2026

• Stepping down as Mockito maintainer after 10 years

  2 projects | news.ycombinator.com | 28 Dec 2025

• How to Choose Right Test Management Platform

  1 project | dev.to | 13 Nov 2025

• Top 10 Cucumber Alternatives of 2025

  1 project | dev.to | 8 Oct 2025

• Karate – Test Automation Made Simple

  1 project | news.ycombinator.com | 10 Sep 2025

• Playwright vs. Selenium in 2025: Key Differences for Test Automation

  2 projects | dev.to | 1 Aug 2025

• Top 10 AI Testing Tools You Need In 2025

  1 project | dev.to | 5 Jun 2025
• A note from our sponsor - SaaSHub
  www.saashub.com | 14 Jun 2026

  SaaSHub helps you find the best software and product alternatives Learn more →

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