Have you heard of Migaku? It is a browser extension, currently only available with a Patreon "donation" that operates in a similar manner. It looks pretty cool.
You might have better luck watching their youtube videos to find out. This one from March says English, French, German, Spanish, Mandarin (2), Portuguese, Cantonese, and I think also Japanese although he did not say as much: https://youtu.be/Z71md2rjGjE?t=494