I use Cypress with this plugin: https://github.com/palmerhq/cypress-image-snapshot https://github.com/palmerhq/cypress-image-snapshot In my setup, it creates t

I use Cypress with this plugin: https://github.com/palmerhq/cypress-image-snapshot https://github.com/palmerhq/cypress-image-snapshot In my setup, it creates the PNG snapshots and compares them to the snapshots stored in Git at each test run. In result, I get the number of different pixels and the test fails if the nunmber is higher than 0. It also produces a visual PNG diff file, that has 3 panes: expected, actual, diff heatmap. The setup took just few hours. However there are some screen resolution limitations in Cypress right now. I could not get it to work in resolution higher than 1200x1024. More about that problem: https://github.com/cypress-io/cypress/issues/2102 https://github.com/cypress-io/cypress/issues/2102