https://chrome.google.com/webstore/detail/youtube-subtitle-download/cekpnjfpngajgdileljjdmnaanhheebd includes support for automatic subtitles. My review there asks whether the relevant part of the code may be treated as open source. Subject to licensing etc., I assume.

In the meantime:

https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchrome.google.com%2Fwebstore%2Fdetail%2Fyoutube-subtitle-download%2Fcekpnjfpngajgdileljjdmnaanhheebd

זה לא מוריד את הטקסט ככתוביות אלא כקובץ טקסט..
It does not download the text as subtitles but as a text file ..

Funciona perfectamente

Works well - thanks Nguyen!

** Stopped working
It shows the available subtitle as a link, but nothing happens after clicking on the link.

It's works greate! thanks. 잘작동합니다. 여러언어 자막도 받을 수 있습니다.

subs are important especially when the darn vid is in Spanish

want it

Just testing this add-on. Working great. Thanks.

It worked swell with old YouTube's layout but new one ruined it.