If you want a similar experience with text, I can recommend Learning with Texts (LWT) if you want a self-hosted experience and you are okay putting in some work

If you want a similar experience with text, I can recommend Learning with Texts (LWT) if you want a self-hosted experience and you are okay putting in some work to setting things up. Basically you feed it some text and it lets you click on words and define their meaning as well as how well you know the word, from 1-5 + "Known" status. There is also LingQ which is a paid and proprietary service, but it has a ton of content as well as no real setup required. It has an already populated pop-up dictionary and many texts to pick from. LWT was inspired from LingQ if I remember correctly. I've used both and can recommend both depending on what experience you are after, I switched to LWT however to save some money and gain some control. I also happen to prefer the experience using LWT. If you're interested in LingQ, be warned LingQ has a pretty scummy subscription cancellation sequence, requiring you to click through 5+ screens of offers and "are you sure?" pages, as well as them threatening with deleting your account data. My data seems intact after the cancellation though. https://learning-with-texts.sourceforge.io/ https://learning-with-texts.sourceforge.io/ https://www.lingq.com/en/ https://www.lingq.com/en/