Visual Regression Testing
General information
2_ENTRIESBrowser automation
4_ENTRIES- Cypress.io
An automation framework that runs in-browser.
- Selenium
Browser automation framework and ecosystem.
- SlimerJS
Scriptable browser like PhantomJS, based on Firefox.
- Webdriver.io
Node.js bindings implementation for the W3C WebDriver protocol.
Tools and frameworks (a-zβ)
45_ENTRIES- AET
Scalable testing tool providing visual regression testing, accessibility and performance validation, markup analysis and more.
- AyeSpy
44 image comparisons in 90 seconds.
- BackstopJS
Config-driven automated screenshot test framework.
- basset
Open source platform for generating and reviewing visual differences. Supports multiple browsers, integrations for github and slack.
- Chimp
Develop acceptance tests & end-to-end tests with realtime feedback.
- CodeceptJS
Modern Era Acceptance Testing Framework for NodeJS.
- Creevey
Cross-browser visual testing with magic. Feature-rich tool with UI Runner, Tests Hot Reloading, Docker and Storybook integration.
- CSSCritic
Lightweight CSS regression testing.
- Differencify
A library for visual regression testing using Puppeteer.
- ember-visual-test
Simple visual regression testing for Ember.
- FuncUnit
A functional test suite based on jQuery
- gatling
Integrated visual RSpec matcher which makes real visual testing easy (Ruby).
- grunt-photobox
Plugin to prevent your project of broken layout via screenshot photo sessions of your site.
- Happo
Visual diffing in CI for user interfaces.
- Hardy
Selenium-driven, cucumber-powered CSS testing.
- jest-image-snapshot
Jest matcher that performs image comparisons using pixelmatch
- jest-puppeteer-react
Visual regression testing with Jest and puppeteer for React components
- Karma
A test runner by the AngularJS team, that fits all our needs.
- Loki
Visual regression testing for Storybook using Chrome in docker et al.
- Look-alike
Chrome Extension for taking and comparing screenshots.
- Lost Pixel
Holistic visual regression testing for full pages, components (via Storybook and Ladle integration), and custom shots (e.g. via Cypress).
- Needle
Needle is a tool for testing visuals with Selenium and nose (Python).
- Nightmare
High-level browser automation library based on Electron.
- Nightwatch
Automated testing and continuous integration framework based on Node.js and using the Webdriver protocol.
- OSnap
The speedy and easy to use Snapshot Testing tool for your project (1200 snapshots will run in under 3 minutes).
- Playwright
Node library to automate Chromium, Firefox and WebKit with a single API.
- Protractor
E2E test framework for Angular apps.
- Puppeteer
Headless Google Chrome Node API.
- qd_screenshottests
CasperJS-based UI regression and functional testing focused on Drupal 8 sites.
- reg-cli
Visual regression test tool which output easy-to-read single file html report.
- reg-suit
Visual regression testing suite which compares images, stores snapshots, and notifies the difference to your GitHub repo.
- ResembleJS
Analyse and compare images with Javascript and HTML5.
- Selenide
Framework powered by Selenium WebDriver for writing easy-to-read and easy-to-maintain automated tests in Java.
- Shoov
UI regression and functional testing focused on Drupal 7 sites.
- Spectre
Provides image comparison capabilities and an admin interface for managing screenshots.
- test-crawler
Visual regression testing, by crawling a website and providing snapshot comparison reports.
- TestCafe
Automated browser testing for the modern web development stack.
- Touca
Open source continuous regression testing without the hassle of managing snapshot files.
- vrtest
JavaScript library for running visual regression tests on your components cross browser via selenium.
- wdio-visual-regression
Visual regression tool for webdriver.io
- Wendigo
Test-oriented browser automation library based on Puppeteer.
- Wraith
Easy to use ruby tool with docker support.
- Zombie.js
Insanely fast, headless full-stack testing using Node.js.
Online services (a-zβ)
33_ENTRIES- applitools
Cloud base visual tests.
- Argos
The open source visual testing platform for modern engineering teams.
- Axcept
Testing for the whole team. Up to 100 tests in parallel. Endpoint Mocking. Code Coverage.
- Browser Shots
Screenshots only.
- browserling
LIVE interactive cross-browser testing.
- BrowserStack
Free for Open Source. Supports Selenium Webdriver.
- BugBug.io
Lightweight test automation tool for web applications. Easy to learn and doesn't require coding. It's free, with unlimited tests. For an additional monthly fee, you also get cloud monitoring and CI/CD integration.
- CrossBrowserTesting
Manual & exploratory testing on 1500+ real browsers and mobile devices.
- Diffy
Cloud based visual regression tool that focuses on Drupal and WordPress. Full page screenshots and minimal number of false positives. Just provide URLs of your sites to get started. No coding required.
- Fluxguard
Screenshot pixel and DOM change comparisons and regressions.
- Happo
Cloud-based screenshot testing service with support for multiple browsers.
- HeadSpin
HeadSpin's Regression testing gives you a powerful comparison tool for analysing degradation across new app builds, OS releases, feature additions, locations, and more.
- LambdaTest
Perform Automated and Live Interactive Cross Browser Testing on 2000+ Real Browsers and Operating Systems Online.
- Meticulous.ai
Easily create frontend tests without writing code. Use Meticulous to record workflows on your web app. You can then replay those flows on new frontend code, and create a test by diffing two replays.
- Micoo
Open source service for all UI application visual regression solution
- percy.io
Continuous visual reviews for web apps.
- Pixeleye
Open-source, multi-browser visual review and testing platform with the option to self-host. It has first-class support for Storybook, Cypress, Playwright & Puppeteer.
- Preflight: Cypress Recorder
Create AI-powered Cypress Tests/POM models in your browser and automate Email & Visual testing for Cypress.
- Preflight
Easiest Visual regression testing and Automated Web Testing tool. (Limited) free use.
- Reflect
Visual regression testing and test automation tool.
- screener.io
For React, looks open source.
- screenster.io
Cloud based automation testing platform for web and mobile UI.
- TestGrid
Perform End to End test automation be it cross browser testing, mobile app testing, performance testing or API testing on cloud or on-premise.
- TestingBot
Provides +3600 browsers to run automated visual tests. Free for Open Source.
- Testomat.io Reporter
Allows to collect tests to a Test Case Management System (TCMS) like testomat.io and sync manual and automated tests in one place.
- testRigor
E2E functional test automation tool for web, mobile, and desktop tests.
- Vidiff
Cloud-based visual regression testing across stages.
- Visual Knight
Cloud-based visual testing platform with realtime results for testing tools.
- Visual Regression Tracker
Open Source selfhosted service for visual regression testing
- VisWiz.io
Flexible visual regression testing service.
- VRTs - Visual Regression Tests
WordPress plugin auto-updating screenshots on content updates, preventing false positives.
Blog posts (a-zβ)
19_ENTRIES- Angela Riggs: Visual Regression Testing with BackstopJS
Tutorial using BackstopJS.
- Chromeless, Chrominator, Chromy, Navalia, Lambdium, GhostJS, AutoGCD
Headless Chrome is shaking up traditional approaches to test automation.
- Everything you need to know about Visual Regression Testing in 2022
Intro to visual regression testing with tools updated as of 2022.
- Garris Shipon: Automating CSS Regression Testing
Tutorial using BackstopJS.
- Garris Shipon: Visual Regression Testing For Angular Applications
Tutorial using BackstopJS.
- Keeping a React Design System consistent: using visual regression testing to save time and headaches
Using percy, and jest puppeteer to visually test a React component library.
- Kevin Lamping: The 5 best visual regression testing tools
Compares: Wraith, PhantomCSS, Gemini, WebdriverCSS and Spectre.
- Make visual regression testing easier
Introduction to Differencify and how to use it.
- Pavels Jelisejevs: Visual Regression Testing with PhantomCSS
Introduction to PhantomCSS.
- Phillip Gourley: Making visual regression useful
Why you should use BackstopJS.
- Poor man's visual regression testing
Improved manual visual regression testing with the PerfectPixel chrome plugin.
- theheadless.dev
Blog with practical guides and runnable examples on Playwright and Puppeteer.
- UI Visual Regression Testing with Micoo
Introduction about how to do visual regression testing with Micoo service
- Visual Regression Test with WebdriverIO & WebdriverCSS
Tutorial using WebdriverIO and WebdriverCSS with Spec Reporter
- Visual regression testing for Hugo with Github-CI and BackstopJS
How to automate regression testing for Hugo with BackstopJS
- Visual regression testing using Jest, Chromeless and AWS Lambda
Tutorial using Chromeless and jest-image-snapshot.
- Visual Regression Testing with Puppeteer & Jest
Tutorial to setup visual testing with Puppeteer, Jest and VisWiz.io.
Slideshows, talks and videos (a-zβ)
9_ENTRIES- CSS Regression Testing with Wraith
Screencast: Basic introduction to wraith, a screenshot comparison tool.
- Cypress in 100 Seconds
Introduction video by Fireship.
- Look-alike - visual regression testing tool
Demo what the Look-alike Chrome extension is, how it works and how and why it was build.
- Screencast on CSS critic - a lightweight testing framework for CSS
How to write your first CSS test with CSS critic, make it pass, break it, and make it pass again.
- Screenster Tutorial
Tutorial on how to create visual automated tests with Screenster.
- Visual Regression Testing - from a tool to a process
by Nikhil Verma - How the Mobile Web team in Badoo converted and integrated PhantomCSS into their workflow and connected it to their CI process.
- Visual Regression Testing with PhantomCSS
Talk by Jon Bellah on how to use PhantomCSS during wordpress development.
- Visual Regression Testing with Shoov
How to setup shoov and get your first test written.
- Visual Regression Testing: Sanity Checks With BackstopJS
Screencast with code demo and best practices.
Deprecated (a-zβ)
14_ENTRIESThe following projects are no longer maintained actively but are still worth mentioning because of their user base.
- CasperJS
Navigation scripting and testing utility for PhantomJS and SlimerJS. (archived 2018)
- Chromeless
Chrome automation made simple. Runs locally or headless on AWS Lambda. (archived 2018)
- DalekJS
Automated cross browser testing with JavaScript. No longer maintained since 4 Jun 2017.
- dpxdt
End-to-end testing with Python.
- Huxley
Python framework based on Selenium Webdriver.
- Navalia
Browser Automation based on headless Chrome and GraphQL. (archived 2018)
- PhantomCSS
Visual/CSS regression testing with PhantomJS or SlimerJS. No longer maintained since 22 Dec 2017.
- PhantomFlow
Experimental approach to UI testing, based on Decision Trees.
- PhantomJS
Scriptable Headless WebKit. No longer maintained since 2 June 2018.
- trifleJS
Headless automation for Internet Explorer. (last update 2016)
- Visual Review
A human-friendly tool for testing and reviewing visual regressions.
- WebdriverCSS
WebdriverCSS sits on top of Webdriver.io and hooks into Selenium.