WEBM to MP4 converter

Convert WEBM to MP4 online — free

Downloaded a WEBM video that won't open in your editor? Convert it to universal MP4.

Convert WEBM to MP4 free
WEBM to MP4 conversion before and after

How to convert WEBM to MP4

1

Upload your WEBM file

Any WEBM video, up to 500MB.

2

Select "Convert format"

FixTheFile converts to MP4 using FFmpeg.

3

Download your MP4

Opens in every video editor and player.

Why FixTheFile

Universal MP4 from any WEBM file

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Works in every video editor — MP4 has far broader software support than WEBM.
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No codec packs needed — Converts directly in your browser.
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Free first fix — No signup required to try.
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Keeps audio track — Sound carries over during conversion.
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Private processing — Files are never reviewed by humans.
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Also compresses video — Shrink the MP4 afterward if needed.
FAQ

WEBM to MP4 — common questions

How do I convert WEBM to MP4 for free?

Upload your WEBM to FixTheFile and select Convert format — it downloads as MP4.

What is WEBM?

An open video format common in browser recordings, screen captures, and some downloads.

Will quality change?

FixTheFile re-encodes the video at a comparable bitrate — quality loss is minimal.

What's the max file size?

Up to 500MB per upload.

Can I also extract just the audio?

Yes — use Extract audio to pull an MP3 from the WEBM instead.

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Try it now

Ready to get started?

No software needed. Works on any device. First fix is free.

Convert WEBM to MP4 free
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