YouTube2NoCookie
Here are 2 bookmarklets to convert youtube.com links (or the short version youtu.be) into their youtube-nocookie.com versions. It also works for YouTube Shorts. I created these when my daughter was under 13 and using a Chromebook. For kids under 13 using a Chromebook, all YouTube links will open in YouTube Kids, and many of the videos she is allowed to watch aren't available there. With these bookmarklets, they can be watched on a Chromebook.
You can use the bookmarklets by dragging them to your Bookmarks Toolbar.
Convert one URL
This bookmarklet asks the user for a URL, converts it and opens the video as an overlay on the current page. Handles regular, short (youtu.be) and YouTube Shorts URLs. Click outside the video or the ✕ button to close.
Convert all URLs on page
This bookmarklet searches the current page for YouTube URLs (including Shorts) and replaces them with youtube-nocookie.com URLs.
Convert All YouTube Links
Source on Github
Disclaimer
The code for these bookmarklets works for me. I didn't test it in all browsers and all variants of YouTube links or embeds. Use and adapt it for your purposes if you like.
It is not intended to bypass cookies on webpages. If you visit a page with standard YouTube embeds, cookies are already set.
The convert all links bookmarklet does not work in Gmail unless the account is from someone under 13 😉.
If you like this, you could buy me a coffee 😎.
Contact
I don't provide any kind of support on these bookmarklets, but if you want to get in touch: