MP4 is usually the safest default for broad browser playback.
MP4 delivers the strongest compatibility baseline across browsers, mobile apps, and embedded players.
Use WebM when your pipeline prioritizes open codecs and modern web optimization.
Use MKV for multi-track packaging outside strict browser-only environments.
Use MOV for editing pipelines where QuickTime-centric tooling dominates.
Select the right web video container for compatibility and compression.
Compare editing-oriented MOV with flexible multi-track MKV containers.
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How to Convert