Some bookmarklet websites for debugging when the browser development tools may not be available.
Quick Console bookmarklet for Desktop and Mobile
https://paul.kinlan.me/quick-console-bookmarklet-for-desktop-and-mobile/
direct: browser-console
Web Page Debugging and Development Bookmarklets
https://sam-i-am.com/work/bookmarklets/dev_debugging.html
Jesse’s Bookmarklets Site
https://www.squarefree.com/bookmarklets/
direct: shell – edit-styles