Does YouTube Shorts support WebM files?
Yes - WebM is on YouTube's own list of supported upload formats.
Unlike most platforms, YouTube explicitly supports WebM uploads - it's listed alongside MP4 and MOV in Google's official supported-formats documentation. There's no need to convert a WebM file before uploading to YouTube or Shorts.
Source: YouTube supported file formats. YouTube video uploads; Shorts also requires an eligible shape and duration. Checked 2026-09-12.
Frequently asked
Does YouTube Shorts support WebM?
Yes - WebM is on YouTube's own list of supported upload formats. Unlike most platforms, YouTube explicitly supports WebM uploads - it's listed alongside MP4 and MOV in Google's official supported-formats documentation. There's no need to convert a WebM file before uploading to YouTube or Shorts.
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