javascript: (() => { var url = "https://12ft.io/" + location.href; window.open(url, '_blank');})();


Instruction:
1. Add a new bookmark. Name it, something like "Unpaywall".
2. In the URL part, paste the above javascript code in.

To use:
simply click on the Bookmarklet, it should open your page to unpaywall by 12ft.io .

Tips:
you can modify to use other unpaywall services,
eg. replace "https://12ft.io/" with "https://archive.ph" to use web archive instead of 12ft .
or "https://freedium.cfd/" to use Fredium.cfd for Medium articles.