Convert videos to any format
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Supports MP4, MKV, AVI, MOV, WebM and more
Drag & drop your WEBM video
Automatic conversion with optimal settings
Save your converted MP4 file
MP4 with H.264 is universally compatible across all devices and platforms. Convert WebM to MP4 when you need to share video on social media, send via email, or play on devices that don't support WebM.
WebM
WebM is an open, royalty-free video format developed by Google, optimized for web use. It uses VP9 or AV1 for video and Opus for audio, offering efficient compression ideal for HTML5 video and web applications.
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.
WebM offers better web compression with VP9. MP4 with H.264 has universal device support. Choose MP4 for compatibility, WebM for web-optimized delivery.
Common scenarios for this conversion
Convert WEBM to MP4 when your device or app doesn't support the original format.
Upload MP4 instead of WEBM for better support on YouTube, Instagram, and TikTok.
Convert to MP4 for seamless import into professional editing software.
Play WEBM files on any phone by converting to MP4.
Your files never leave your device. All conversion happens in your browser — no server uploads.
Hardware-accelerated conversion powered by WebCodecs and WebAssembly.
Convert between any video format combination.