https://readmedium.com/ script

If you mean a JavaScript bookmarklet that converts the current Medium article URL into the corresponding readmedium.com URL, use:

javascript
javascript:(()=>{const u=location.href;location.href='https://readmedium.com/'+u;})();

readmedium.com currently documents the same basic approach: prepend https://readmedium.com/ to a Medium article URL. (Read Medium articles with AI)

Use it only for articles you’re authorized to access; I can also make this into a Tampermonkey userscript that adds a “ReadMedium” button on Medium pages.