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MPEG-4 Part 14
MP4 is the most widely used video container format, supporting H.264, H.265/HEVC, and AV1 codecs. It offers excellent compatibility across all devices, browsers, and platforms while maintaining a good balance between file size and quality.
Common reasons to convert to MP4
Save as MP4 for maximum compatibility across all devices and platforms.
MP4 is widely supported across all major web platforms and social media.
Use MP4 as an intermediate format for video editing workflows.
MP4 plays natively on virtually every smartphone and tablet.
Your files never leave your device. All conversion happens in your browser — no server uploads.
Hardware-accelerated conversion powered by WebCodecs and WebAssembly. Up to 10x faster than server-based tools.
Convert between MP4, WebM, MKV, AVI, MOV, FLV, WMV, TS and more. Any combination, any direction.