A nice one to recommend to your students, Rewordify is a website where students can paste in text or a webpage link and get the text’s more challenging words simplified to make the reading process easier. We think it’s a really useful tool if students are struggling with a text to help them read it reasonably naturally without having to keep leaving the text to look through the dictionary.

The site has other features such as flashcards (a bit like Quizlet, but a bit simpler) and the ability to create various activities from a text, such as cloze tests and matching. Anyhow, have a look and give it a go, you might find something in there useful for your classes.