Best Visual Testing Tools for JavaScript

QA Wolf helps engineering teams achieve 80% automated test coverage end-to-end in just four months. Here's an overview of what you get in the box, whether it's 100 or 100,000 tests. • Automated end-to-end testing for 80% of the user flows in 4 months. The tests are written in Playwright, an open-source tool (no vendor lock-in; you own the code). • Test matrix and outline in the AAA framework. • Unlimited parallel testing on any environment of your choice. • We host and maintain 100% parallel-run infrastructure. • Maintenance of flaky and broken test for 24 hours. • Guaranteed 100% reliable results -- zero flakes. • Human-verified bugs sent via your messaging app as a bug report. • CI/CD Integration with your deployment pipelines and issue trackers. • Access to full-time QA Engineers at QA Wolf 24 hours a day.

Percy serves as a comprehensive platform for visual testing and review, automating the process of visual quality assurance by taking screenshots of web, mobile, or component user interfaces, comparing them to a predefined baseline, and identifying any unintended visual alterations to guarantee pixel-perfect accuracy. This platform is designed to seamlessly integrate with widely-used testing frameworks, CI/CD pipelines, and component libraries, allowing teams to capture snapshots at every code commit, review visual discrepancies, approve modifications, filter out distractions from dynamic elements, and uphold reliable visual approval processes. Percy is compatible with various resolutions, browsers, devices, and viewports, providing functionalities such as cross-browser testing, full-page captures, branch-aware baseline selection, intelligent diff filtering, and built-in collaboration features that facilitate approvals, requests for changes, and comments. Furthermore, with support for SDKs in prominent programming languages and frameworks like Playwright, Cypress, and Storybook, teams can easily incorporate Percy into their existing testing workflows, enhancing their overall efficiency and accuracy in visual quality assurance. This makes it an invaluable tool for teams seeking to ensure a consistent user experience across different platforms.