Video to MP4

Convert WebM, MOV, AVI, MKV, and other video formats to universally compatible MP4. Uses FFmpeg running directly in your browser via WebAssembly — your video never leaves your device. Perfect for making videos compatible with all devices, platforms, and messaging apps.

Drag & drop a file here

or browse to select

Accepts: MOV, WebM, AVI, MKV, WMV, FLV → MP4

Conversion is 100% private Sharing uses encrypted transfer

How to convert mov, webm, avi, mkv, wmv, flv to MP4

1

Select a file

Drag & drop or click to browse. Accepts MOV, WebM, AVI, MKV, WMV, FLV formats.

2

Convert

Click the convert button. Processing happens instantly in your browser.

3

Download or Share

Download locally or share via a secure EveryTransfer link in one click.

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Video to MP4 — frequently asked questions

How do I convert MOV or WebM to MP4 for free?

Drop your video into the tool above and click Convert. FFmpeg — the same engine professionals use — runs inside your browser and produces a universally compatible MP4.

Is my video uploaded during conversion?

No. FFmpeg runs locally via WebAssembly, so the video is processed on your own device. Nothing is sent to a server unless you later choose to share the result.

Is there a video size limit?

The practical limit is your device's memory — most laptops handle videos up to a few gigabytes. For very large files, convert locally or send the original via an EveryTransfer link instead.

Why convert to MP4 at all?

MP4 (H.264) plays everywhere: iPhones, Android, Windows, TVs, browsers, and messaging apps. MOV, MKV, and WebM files often fail on at least one platform your recipient uses.

Need to share your converted files?

Send any file securely with a download link — password protection, analytics, and expiry built in.

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