WebM to MP4 Converter — Free & Private

Convert WebM videos to universally compatible MP4 in your browser. Choose a quality level with no upload, no watermark, and no account required.

MotionHarborFreePrivate

Supported formats

Input:WebM
Output:MP4

Features

Plays everywhere

MP4 with H.264 is supported by virtually every device and app.

Quality presets

Balance file size and clarity with a simple quality choice.

Local and private

Your WebM is converted on your device, never uploaded.

How to use

  1. 1

    Add your WebM

    Drop a WebM file into the upload area or click to browse.

  2. 2

    Choose a quality level

    Select how to balance size against clarity for the MP4.

  3. 3

    Convert and download

    Press Process to encode the MP4 locally, then download it.

Maximum compatibility, everywhere

WebM is efficient and great for the web, but some devices, editors, and social platforms still prefer MP4. Converting to MP4 with H.264 gives you the most compatible file possible — one that plays on essentially any phone, TV, or app.

Pick a quality level to suit your goal, then export. All processing runs locally, so your video stays private and there are no conversion limits.

Frequently asked questions

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WebM to MP4 Converter — Free & Private

Convert WebM videos to universally compatible MP4 in your browser. Choose a quality level with no upload, no watermark, and no account required.

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