You could absolutely get this working with GitHub Actions with a bit of creativity.

I've been playing around with my own image-diff tool for this kind of thing, but it's not yet in a decent state: https://github.com/simonw/image-diff - there are other, better options out there such as https://github.com/mapbox/pixelmatch

Needle is an older system that did this using Selenium - updating that to work with Playwright (or Playwight via shot-scraper) would be an interesting project: https://github.com/python-needle/needle

I used pixelmatch + puppeteer at a previous job to automate this. The service would screenshot each page on the master branch and the PR branch, then comment on the PR with a link showing the Before, Diff, and After of each page that changed. I highly recommend this type of setup.

Where did you upload the screenshots?

The same service kept the screenshots in its file system, and served them along with with the web pages that displayed them.

I love that idea.

Awesome Visual Regression Testing > lists quite a few tools and online services: https://github.com/mojoaxel/awesome-regression-testing#tools...

"visual-regression": https://github.com/topics/visual-regression

Cypress.io can run in a CI job, does Time Travel, works with DevTools debugger, can take screenshots and [headless] video, and it looks like there's a visual regression testing thing for it: https://github.com/mjhea0/cypress-visual-regression https://docs.cypress.io/guides/overview/why-cypress#Features

I’ve built something like this and stored the diff regions in PostGIS, really easy way to build a visual diff search tool using bounding boxes.

Now you've got me thinking if that would be possible using SpatiaLite.