[xendipity]

Just tried Toucan and it can't be disabled on localhost, a major pain for using it during work as an engineer. For those that haven't used toucan, it's an extension that translates words/phrases inline on a page with various levels of replacement frequency and complexity based on your proficiency with the language.

[cianmm]

This [1] help article says that it's free. Not sure how much we should trust that though. Did you find a better source?

[1] https://support.babbel.com/hc/en-gb/articles/13752043233170-...