Visual regression testing verifies that an application or website looks and behaves as expected and that there have been no unintended changes to the visual appearance or functionality. This process involves comparing a baseline application or website version with a current version and checking for visual differences.
During visual regression testing, images of the application or website are captured and compared using specialized tools highlighting differences. There may be differences between the two versions, which indicate that the application's appearance or layout has changed or that a bug or issue needs to be fixed.