Question 1

Which YouTube thumbnail sizes can I download?

Accepted Answer

All standard sizes from default up to maxresdefault — the tool automatically finds the highest-resolution version that exists for the video.

Question 2

Is it free?

Accepted Answer

Yes, free with no ads and no account.

Question 3

Do I need to log in to YouTube?

Accepted Answer

No. The tool fetches the public thumbnail URLs directly without any account.

YouTube Thumbnail Downloader