YouTube channels to OPML
Since YouTube removed export to OPML, you need to obtain the list of subscriptions manually.
- Go to Google Takeout
- In Create new export click Deselect all
- Find and check YouTube and YouTube Music
Click All YouTube data included - click Deselect All, and then check only
- Click Next, select Export once. Click Create export
- Once it's ready, you should have an archive with only one file: subscriptions.json
- Drag it onto the area below.