This can be run from the console by pushing (usuall) F12 in the browser and selecting the console.

Update 9/30/24: This stopped working a couple of weeks after using it, kind of flattering that linkedin changed things up just for this script. I've updated it using Claude since I don't know much about anti automation coding. It works again but is a bit glichy in that it sees more or less endorsements than actually exist but will eventually click them all.

Usage

1. Go to the persons linked in skills page you want to endorse: https://www.linkedin.com/in/<USERNAME)/details/skills/
2. In Chrome/Firefox press F12 to bring up the dev tools, click on console.
3. Paste this js code into the Blinking cursor area of the console and press enter. There is a 2 second delay between endorsements.
4. If you want you can remove the delay but you might get blocked by linked in.