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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
Popular libraries such as BackstopJS for Puppeteer, or Loki provides developers and QA with powerful techniques to quickly, and easily, set up visual regression testing.
Popular libraries such as BackstopJS for Puppeteer, or Loki provides developers and QA with powerful techniques to quickly, and easily, set up visual regression testing.
Internally, Playwright Test uses the pixelmatch library to compare screenshots for visual differences. It is possible to pass several options to this library, to fine-tune the comparison of images. The most important option is the threshold option, which indicates the threshold amount of differences allowed between two images.