Open Source JavaScript Software Testing Tools

Playwright is a Node library for automating Chromium, Firefox and WebKit using a single API. It supports headless execution for all these browsers on Linux, macOS and Windows, providing automated web browser interactions that are fast, capable, reliable and ever-green. Playwright enables a broad spectrum of cross-browser web automation capabilities, which are used by Single Page Apps and Progressive Web Apps. These include scenarios that span multiple pages, domains and iframes; emulation of mobile devices, geolocation, and permissions; upload and download files and many more.

Puppeteer is a headless Node library that provides a high level API for controlling Chromium or Chrome over the DevTools protocol. It requires zero setup and comes bundled with the Chromium version most suited to it. Puppeteer is headless by default, making it fast to run. However, it can also be set to run full or non-headless Chrome or Chromium, simply set the headless option when launching a browser. Many of the things you can do manually in the browser, you can also do with Puppeteer such as generate page screenshots and PDFs, crawl a Single-Page Application, test Chrome extensions and more.

Chai is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework. Chai has several interfaces that allow the developer to choose the most comfortable. The chain-capable BDD styles provide an expressive language & readable style, while the TDD assert style provides a more classical feel. Plugins extend Chai's assertions to new contexts such as vendor integration & object construction. Developers can build their own plugins to share with community or use the plugin pattern to DRY up existing tests. You can also use it within the browser; install via npm and use the chai.js file found within the download. Browse our growing directory of custom plugins & vendor integrations to find the best tool for your needs. Chai has an extensive utility belt for plugin developers. Learn how to build your plugins & share.

Playwright for .NET is the official language port of Playwright, the library to automate Chromium, Firefox and WebKit with a single API. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast. Cross-browser. Playwright supports all modern rendering engines including Chromium, WebKit, and Firefox. Cross-platform. Test on Windows, Linux, and macOS, locally or on CI, headless or headed. Cross-language. Use the Playwright API in TypeScript, JavaScript, Python, .NET, Java. Test Mobile Web. Native mobile emulation of Google Chrome for Android and Mobile Safari. The same rendering engine works on your Desktop and in the Cloud. Auto-wait. Playwright waits for elements to be actionable prior to performing actions. It also has a rich set of introspection events. The combination of the two eliminates the need for artificial timeouts - the primary cause of flaky tests.

There are a few visual regression tools for the web, but most either cannot be run headless or use phantomjs which is deprecated and a browser nobody is actually using. They usually also require you to maintain fixtures. With react-native it's now possible to target multiple platforms with a single code base, but there's no single tool to test all to my knowledge. Loki aims to have easy setup, no to low maintenance cost, reproducible tests independent of which OS they are run on, runnable on CI, and support all platforms storybook does.

Generating JavaScript/WSH code to automate Internet Explorer. Generated code is pure JavaScript code, you can further customize code depends on your automation needs. See homepage http://wshgenerator4ie.sourceforge.net/

Visual regression testing for web apps. Supports screen rendering with Chrome-headless. Add your own interactions with the Playwright and Puppeteer scripting. BackstopJS automates visual regression testing of your responsive web UI by comparing DOM screenshots over time.

VNC for use with the BrowserMob Selenium JavaScript Validator. This tool is made available for users of BrowserMob FREE Website Monitoring and Load Testing. The BrowserMob Local Validation Service can be downloaded from https://browsermob.com/tools.

Crosscheck is a JavaScript unit-testing framework capable of emulating multiple browser environments. For more information see: https://dev.thefrontside.net/crosscheck

Differencify is a library for visual regression testing via comparing your local changes with reference screenshots of your website. It is built on top of chrome headless using Puppeteer.

Lio is a javascript logger. There is only one file to solute any thing about log.

Molybdenum is an IDE for creating, editing, running and recording testscripts for Selenium, a browser integrated testtool from http://thoughtworks.com. Molybdenum is build as a Mozilla Firefox extension/application.

# For automating test automation > A browser extension (beta) that generates test scripts ### Limitations - WebExtension only works on sites that allow content scripts. Add-on is based on - Robotcorder (https://github.com/sohwendy/Robotcorder) Additional features * Save test script * Syntax highlighting * Find script and jump to line * Added options to set the add-on Generate your RobotFramework Test Script via

The project has moved to Google Code. You can find it here: http://sfapi.googlecode.com/

A visual regression testing library/tool, aims to quickly automate browser-based tests with minimum development overhead. To test flexibly in different testing scenarios, either testing against web UI wired with backends or just static web pages, VBot exposes API to be used with testing frameworks like mocha or ava, etc. Therefore, the test data variables can be updated according to different conditions, in order to decouple from real backends and avoid false negative results.

Insanely fast, headless full-stack testing using Node.js. Zombie 6.x is tested to work with Node 8 or later. If you need to use Node 6, consider using Zombie 5.x. If you’re going to write an insanely fast, headless browser, how can you not call it Zombie? Zombie it is. Zombie.js is a lightweight framework for testing client-side JavaScript code in a simulated environment. No browser required. Zombie will work with other testing frameworks. Since Mocha supports promises. Just like your favorite Web browser, Zombie manages multiple open windows as tabs. New browsers start without any open tabs. As you visit the first page, Zombie will open a tab for it. All operations against the browser object operate on the currently active tab (window) and most of the time you only need to interact with that one tab. You can access it directly via browser.window. You can access all open tabs from browser.tabs. This property is an associative array, you can access each tab by its index number.

Servlet debugging support: Introspects the content of request, session and servlet context, appends a HTML representations of the data to the HTML pages served by the engine. Strategies used for introspection and visualization purpose are plugable.

Testpilot is a browser based unit testing framework for testing websites. With it you can record the keystrokes and mouse events for a session and play them back automatically. You can include assertions for values in inputs DIVs or JavaScript variables.