Reduce video file size while maintaining quality
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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 reduce MP4 file size
Compress MP4 videos to fit email attachment limits and messaging apps.
Reduce MP4 file sizes by up to 80% while maintaining visual quality.
Optimize MP4 for faster upload to YouTube, Vimeo, and social platforms.
Create lightweight MP4 files that stream smoothly on mobile networks.
Your videos never leave your device. All compression happens locally in your browser.
Hardware-accelerated compression powered by WebCodecs and WebAssembly.
Compress MP4, MOV, AVI, MKV, WebM and more video formats.