[jacooper]

I want to use something like this to automatically detect visual breakage after auto updates for WordPress, discourse etc. Is there such a product? Preferably Open source

[artur_makly]

Lots of our customers use https://VisualSitemaps.com just for that. It's great for also keeping track of Competitors/Markets, besides internal QA.

[netcraft]

something like https://playwright.dev/ might fit your needs.

[adieuadieu]

Specifically writing some tests with the "Visual comparisons" feature might work.

https://playwright.dev/docs/test-snapshots