Convert WEBM to MP4

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Converting WEBM to MP4 is free: drop your WEBM above, hit convert, and download the MP4. Files delete themselves within an hour.

Most WEBM to MP4 conversions are wrapper swaps: the pictures stay pictures, they just trade WEBM's box for one built for playing everywhere: browsers, phones, TVs, editors, slide decks. If the codec inside your WEBM is one MP4 accepts, Flippy keeps quality bit-for-bit identical; if not, it re-encodes once, carefully, at matching quality.

Why flip WEBM to MP4

WEBM is video the way browsers like it: open, royalty-free and built to stream. It was born in 2010, Google, out of its VP8 acquisition, and its real weak spot is life outside the browser: editors, TVs and Apple devices get picky.

MP4 is the world's default video: the file that plays before anyone has to think about it. A container, most often carrying H.264 or H.265 video with AAC audio. That makes it the right destination when what you need is playing everywhere: browsers, phones, TVs, editors, slide decks.

How to convert WEBM to MP4

1
Drop your WEBM file into the flipper above, or click to browse for it.
2
Check the output format: MP4 is already selected for you.
3
Hit Convert, give it a moment, then download your new MP4.

WEBM vs MP4, side by side

	WEBM	MP4
Born	2010, Google, out of its VP8 acquisition	2001, the MPEG standards group, built on Apple's QuickTime design
Type	video · container	video · container
Best for	embedding on the web without licensing worries	playing everywhere: browsers, phones, TVs, editors, slide decks
Weak spot	life outside the browser: editors, TVs and Apple devices get picky	very little day to day: as a container its quality depends on the codec inside
Typical size	often smaller than the equivalent MP4: VP9 and AV1 squeeze harder than H.264	roughly 50–100 MB per minute at 1080p, depending on bitrate
Plays on	Every modern browser; hit-and-miss in editing apps and on Apple hardware.	Every browser, phone, TV and editing app worth mentioning.

Questions people ask

Will converting WEBM to MP4 lose quality?

Usually not: when the video codec is compatible, Flippy swaps the container without re-encoding, so quality is untouched. If a re-encode is needed, it happens once at matching quality.

Will the MP4 file be bigger or smaller than my WEBM?

Similar, unless a re-encode is involved: then it depends on the codec. MP4 typically runs roughly 50–100 MB per minute at 1080p, depending on bitrate.

Where will the MP4 file play?

Every browser, phone, TV and editing app worth mentioning. That's the usual reason people leave WEBM behind: MP4 simply opens in more of the places that matter.

How long does WEBM to MP4 conversion take?

When it's a pure container swap it's nearly instant, since nothing is re-encoded. Full re-encodes take roughly as long as the video plays, often less.

More ways to handle these formats

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