Smart Converter
Video Converter

Convert WebM to MP4 Online

Convert WebM videos to universally compatible MP4 format. Perfect for sharing WebM videos on platforms that don't support the format.

Launch WebM to MP4 Converter

How to Convert WebM to MP4

  1. 1

    Open the Video Converter in the workspace.

  2. 2

    Upload your WebM file.

  3. 3

    Select MPEG-4 Video (.mp4) as the output.

  4. 4

    Convert and download your MP4 file.

Why Use Smart Converter for WebM to MP4 Converter

100% Private

All conversions happen directly in your browser using WebAssembly. Your files never leave your device.

No File Size Limits

Since processing is local, your only limit is your device's available memory. No arbitrary upload caps.

Lightning Fast

No upload or download times. Processing starts immediately with optimized WebAssembly codecs.

Completely Free

No hidden charges, no premium tiers, no usage limits. All features are available to everyone.

Frequently Asked Questions

Why convert WebM to MP4?

MP4 is supported everywhere — iOS, Windows, macOS, smart TVs, and most media players. WebM support is limited to modern browsers.

Will subtitles and metadata be preserved?

Basic video content is preserved. Advanced WebM features like chapter markers may not transfer to MP4.

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