YouTube Thumbnail Downloader
Extract thumbnails from any YouTube video in every available resolution. Supports youtube.com, youtu.be, and Shorts URLs.
Supports:youtube.com/watch?v=…youtu.be/…youtube.com/shorts/…11-char video ID
YouTube Thumbnail Sizes Explained
YouTube automatically generates thumbnails for every video at multiple resolutions. The best quality is maxresdefault (1280×720) — available only when the video has an HD custom thumbnail. hqdefault (480×360) is always available and a reliable fallback.
maxresdefault.jpg1280 × 720
Hero banners, presentations
sddefault.jpg640 × 480
SD embeds, social cards
hqdefault.jpg480 × 360
Always-available fallback
mqdefault.jpg320 × 180
Thumbnails, suggested grid