Mocha vs QUnit
Mocha
mochajs.org
QUnit
qunitjs.comSide by side
| Figure | Mocha | QUnit |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 1 |
| Spec score · JavaScript Testing Frameworks | 7.7 (#9) | 8.5 (#2) |
| Spec score · Unit Testing | 7.6 (#17) | 8.4 (#3) |
| Spec score · Unit Testing Frameworks | 7.6 (#22) | 8.3 (#6) |
| Founded | 2011 | 2008 |
| Maintainers | The Mocha 12 release post says the release is ready for production use. | The QUnit team says project work is done by volunteers. |
| Purpose | Mocha is a JavaScript test framework that runs on Node.js and in browsers. | QUnit is a JavaScript testing framework originally developed for jQuery and now used by JavaScript libraries and applications. |
| Support | The project points users to its Discord and documentation explainers for additional information. | The project directs users to GitHub issues, Stack Overflow, and its Matrix chat room for questions and help. |
Plans
In their own words
Mocha
Mocha is a free, open-source JavaScript test framework that runs in Node.js and browsers. Tests run serially by default, and uncaught exceptions are associated with their test cases. Asynchronous tests can use callbacks or returned promises, while parallel execution is available in Node.js but not in browsers. The command-line interface defaults to the BDD interface and spec reporter; browser runs default to the HTML reporter, and reporters can be configured. Installation as a development dependency is documented for npm, pnpm, and yarn. Mocha 12 requires Node.js ^20.19.0 or >=22.12.0, and browser builds document support for evergreen Chrome, Edge, Firefox, and Safari. It supports JavaScript and TypeScript, parameterized cases, and lists editor-related packages for TextMate, JetBrains IDEs, Wallaby.js, Emacs, and VS Code. Built-in mocks are not included. The project points users to Discord and documentation explainers for more information.
QUnit
QUnit is a free JavaScript testing framework first developed for the jQuery project. It runs in web browsers, Node.js, SpiderMonkey and Web Worker threads, so developers can test code in different runtime environments. Its APIs allow custom assertions, test runners and reporters. Browser releases have no runtime dependencies, and the project describes Node.js setup as requiring zero configuration and browser setup as minimal. For DOM tests, QUnit resets fixture markup after each test. Its browser reporter presents results and can include expected and actual values, assertion details and failure stack traces. Developers can rerun selected tests or modules and prioritize previously failing tests. Guides cover modules, asynchronous tests, callbacks and assertions, while plugins can add or modify capabilities such as DOM assertions, themes and JUnit XML reports. QUnit integrates with browser automation tools including Karma, Web Test Runner, Testem and WebdriverIO’s QUnit service. QUnit 3.0 is distributed through the jQuery CDN and npm, and is also installable with Yarn. For its ESM version, the compatibility guide lists Node.js 18+ and specified browser versions.