With so many different visual regression testing tools available, figuring out which is right for you is tough. You know you want to ensure visual consistency and catch unintentional UI changes during the software development process but need to figure out which tool is best. I've got you! In this post I'll help make your choice easy, sharing my personal experiences using dozens of different visual regression testing software with various teams and projects, with my picks of the best visual regression testing tools.
What Are Visual Regression Testing Tools?
Visual regression testing tools are software that automate the process of comparing visual elements of a user interface (UI) before and after changes to the code. They work by capturing screenshots of web pages or UI components and then comparing these images against baseline visuals to identify any differences. These tools are used primarily in the development and testing of web applications to ensure visual consistency and accuracy.
The benefits of visual regression testing tools include the early detection of unintended visual changes, ensuring that the UI remains consistent across different versions of the software. They provide efficiency in testing processes by automating what would otherwise be a manual and time-consuming task. By maintaining a high standard of visual quality, these tools contribute to an enhanced user experience. They are particularly useful for verifying visual consistency across various browsers and devices, ensuring that all users have a uniform experience regardless of their access point.
LambdaTest is a cloud-based platform that provides testing services for web and mobile applications across a variety of browsers and devices. It enables users to perform manual and automated testing to ensure their web applications function correctly in different environments. The platform offers over 2000 combinations of browsers and operating systems for testing purposes.
LambdaTest supports various testing frameworks and includes features like SmartUI CLI for command-line interactions, real device testing for accurate results, and Smart Baseline Branching to manage different versions of visual baselines. It is designed to facilitate fast test execution, reduce the time required to run tests, and expand test coverage.
LambdaTest integrates with Jira, Slack, GitHub, BitBucket, Azure DevOps, Teamwork, Asana, Trello, Jenkins, TestRail, Applitools, and TestComplete.
LambdaTest costs from $15/month and provides a free trial.
testRigor is a visual regression testing tool that stands out when it comes to the new era of AI-based automation tools. The tool allows you to create tests in plain English, with elements being referenced from a human perspective. testRigor analyzes all possible parameters behind the scenes to use the most useful ones, which results in ultra-reliable tests.
testRigor allows you to dramatically decrease your test maintenance, by allowing you and your team to spend 95% less time on it on average. Instead, the tool allows you to seamlessly build new tests and increase test coverage. testRigor makes the process of converting existing manual visual test cases into automated visual tests very straightforward, and users can also define and customize their wording if they desire.
The cost of testRigor starts at $300 per month and can be tailored to your specific needs. There is a free 14-day trial with no credit card information required upfront.
Mobot is a full-service platform that specializes in using mechanical robots to test mobile devices. With Mobot, QA teams can offload tests that were previously only testable via manual testing and automate them with real robots.
It is a new, unique approach that actually removes manual testing from the day-to-day responsibilities of QAs. Mobot's team plus robot fleet fully manage all aspects of testing from execution to documentation, reporting, and more. Mobot can automatically open JIRA tickets and send slack pings with test results and reproducible steps for bugs and abnormalities.
Features include no code, self-serve test uploads, human-verified test results, Bluetooth device testing, AI-powered test automation, and a continuous testing integration system.
Integrations include Slack, GitHub, Jenkins, Zephyr, Microsoft Teams, Microsoft Azure, Bugzilla, Trello, Jira, and TestRail.
Mobot pricing starts at $1,500 per month per action, such as tapping, swiping, or clicking. A 30-day free trial is also available.
Leapwork is a no-code visual regression testing tool that allows your team to create and execute tests across a variety of environments without the need to have coding experience. The tool is cloud-based and offers testing in both web and desktop application environments within the same workflow. Leapwork is simple to implement within your team and provides a growing base of written documentation, videos, and articles.
Leapwork provides an array of features such as debugging, parallelization, compliance management, approval process control, and recurring tests. The tool allows you to record processes and test cases in context, validate the test steps, and input data. Leapwork will then build the processes in a graphical flowchart with logic, making it easy for the non-technical members of your team to review and take action.
Leapwork integrates with platforms such as Microsoft Azure DevOps, Jenkins, and TeamCity.
Leapwork provides customized pricing upon request.
Applitools is a visual regression testing tool that is geared toward cross-browser and -device testing. The tool allows you to reduce the number of code lines to save time in building a comprehensive test suite. Applitools is AI-powered, therefore is intuitive and allows for easy automation.
Applitools’ visual testing platform allows you to focus your testing efforts on visual regression testing, providing you the ability to test scripts created by open source frameworks or tools that test screens. The tool also allows you to train your testing needs by providing options to omit regions of your app and annotate your elements. Applitools can be run inside your CI/CD process against the tool's own Ultrafast Test Grid, as well as against local browsers and devices.
Applitools provides integrations with Selenium Web Driver, TeamCity, Jira, and Slack.
Applitools provides customized pricing upon request.
Gemini is a utility for regression testing the visual appearance of web pages. Gemini allows you to work with different browsers, including Google Chrome, Mozilla, Firefox, IE8+, and Opera 12+. Gemini was created at Yandex and is especially useful to UI library developers.
Gemini is free to use.
Percy is an all-in-one visual regression testing platform that focuses solely on visual testing. The tool allows you to execute both manual and automated tests, as well as receive status updates. Percy also provides you with efficient reviews following a test run, allowing you to do side by side comparisons.
Percy offers an abundance of features to make your visual regression testing efforts easy, including responsive testing which allows you to see how code changes will affect your UI at every responsive breakpoint. The tool also offers the ability to execute cross-browser testing, allowing you to catch regressions caused by rendering differences. Finally, Percy allows you to integrate with your current stack, implemented through test automation frameworks and Ci/CD services.
Percy integrates with frameworks such as Vue and Angular, and also provides integration with Webhooks and Gitlab.
The cost of Percy starts at $149 per month for the Desktop version. The tool also offers a free version.
Wraith is an open source visual regression testing tool that provides responsive screenshot comparison functionality. The tool uses a headless browser and is easy to install and implement within your workflow. Wraith works alongside PhantomJS, CasperJS, Ruby23, and ImageMagick.
Using the headless browser, Wraith allows you to capture screenshots of your web pages. The tool allows you to compare those screenshots with another instance as well as compare pages on the same site over time. Finally, Wraith provides you the ability to crawl your websites to provide all paths for testing, as well as test pages for responsiveness.
Wraith is fully open source and free to use.
WebdriverCSS is for CSS regression testing in WebdriverIO that lets you write some E2E tests and take screenshots of these areas. You can Define areas within your application that should always look the same. WebdriverCSS uses GraphicsMagick for image processing. Note: WebdriverCSS isn't yet compatible with WebdriverIO v3.0, though it's on the priority roadmap.
WebdriverCSS is free to download and use.
Rainforest QA is a no-code regression testing solution that provides a building block approach for creating tests and processes. The tool allows you to set up a repeatable testing environment, so you and your team can streamline your test process within this environment as often as you need. Rainforest QA also allows you to easily shift between parallel and sequential testing so you can keep pace with the development environment, and reduce time between sprints.
Rainforest QA’s intuitive and simple user interface enables you to better organize your visual test cases by allowing you and your team to tag cases so you can group them as well as assign and monitor said test cases, which are all managed from a single dashboard. The tool allows you to execute cross browser testing (Internet Explorer, Chrome, Edge), as well as access various systems (such as Windows and Linux), providing you extensive visual test coverage of your application. Rainforest QA also has the results arriving as tests within a suite are still being executed.
Rainforest QA provides integration with notification platforms such as Slack and Microsoft Teams, as well as continuous integration platforms such as Github and CircleCI.
Rainforest QA is free to use for the Professional tier and offers customized pricing for their Enterprise tier. The tool also offers a 14-day free trial.
Open source visual and CSS regression testing tool
- Tricentis Testim
Best for organizing your test steps for easy review
- New Relic
Best for AI-driven full-stack monitoring
Execute livestream testing to identify bugs in real-time
Automated regression testing with first-class visual testing built-in
Best for identifying UI regressions with AI
Best for running tests in parallel
What do I look for when I select the best tools? Here’s a summary of my evaluation criteria:
- User Interface (UI): I look for an easy to navigate user interface with features available to you within just a few clicks.
- Usability: I look for visual regression testing features that complement your application lifecycle.
- Integrations: I look for integrations with project management tools so you can better organize your workflow.
- Value for Price: I look for the most useful features for the cost.
Visual Regression Testing Key Features
- Test recorder: Records the steps of manual testers who are testing features within the user interface.
- Reporting: Robust reporting system so you can be proactive about your fixes.
- Cross-platform testing: Ability to test across a variety of platforms and devices.
- Single dashboard: Everything you need is easily managed from a single dashboard.
What do you think about this list?
The first thing your customers see when they land on your application is the UI. When code changes happen, it's nice to know that you have a robust system in place to cover yourself should any bugs occur following an update, ensuring that your customers don't see the errors. I hope this list has helped inform you what tools out there could complement your needs.
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