YouTube download and format guides
First-party explanations for choosing video, audio, and thumbnail formats—and understanding what a downloader can actually produce from the source.
Reviewed and maintained by YouTube Shorts Downloader01 · VIDEO & AUDIO GUIDE
Why YouTube HD Video May Have No Audio
Learn why many 1080p and 4K YouTube formats are video-only, how adaptive streams work, and when compatible audio can be combined with MP4 video.
5 minute guide →02 · FORMAT GUIDEYouTube Video & Audio Formats Explained
Compare YouTube MP4, WebM, M4A, AAC, and OPUS formats. Learn the difference between containers and codecs and choose the right video or audio output.
6 minute guide →03 · THUMBNAIL GUIDEYouTube Thumbnail Sizes: Max Resolution vs HQ
Understand YouTube max-resolution and HQ thumbnail images, common 16:9 dimensions, fallback behavior, and how to choose the best available JPG.
4 minute guide →