Convert MP3 to WEBM

Free, in your browser, no signup: files delete themselves within an hour.

Drop your file here to upload

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Files auto-delete in 1 hour
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Flippy turns MP3 into WEBM for free: upload the MP3 above and download it wrapped as WEBM, sound untouched.

It sounds backwards, but MP3 to WEBM is a real need: plenty of platforms and tools only accept video, so Flippy re-packs your MP3 audio inside a WEBM wrapper. Nothing is re-recorded: the sound in your MP3 crosses over untouched, and the WEBM that comes out is built for embedding on the web without licensing worries.

Why flip MP3 to WEBM

MP3 is the format that taught music to travel: small, scrappy, and welcome absolutely everywhere. It was born in 1993, Fraunhofer Institute, Germany, and its real weak spot is holding fine detail at low bitrates: it stays small by quietly discarding sound.

WEBM is video the way browsers like it: open, royalty-free and built to stream. A Matroska-based container restricted to VP8/VP9/AV1 video with Vorbis or Opus audio. That makes it the right destination when what you need is embedding on the web without licensing worries.

How to convert MP3 to WEBM

1
Drop your MP3 file into the flipper above, or click to browse for it.
2
Check the output format: WEBM is already selected for you.
3
Hit Convert, give it a moment, then download your new WEBM.

MP3 vs WEBM, side by side

	MP3	WEBM
Born	1993, Fraunhofer Institute, Germany	2010, Google, out of its VP8 acquisition
Type	audio · lossy	video · container
Best for	playing on anything with a speaker, from new phones to twenty-year-old car stereos	embedding on the web without licensing worries
Weak spot	holding fine detail at low bitrates: it stays small by quietly discarding sound	life outside the browser: editors, TVs and Apple devices get picky
Typical size	about 1 MB per minute at 128 kbps: roughly a tenth of CD audio	often smaller than the equivalent MP4: VP9 and AV1 squeeze harder than H.264
Plays on	Everything. Phones, browsers, cars, smart speakers, ancient iPods.	Every modern browser; hit-and-miss in editing apps and on Apple hardware.

Questions people ask

Will converting MP3 to WEBM lose quality?

No. Wrapping audio in a WEBM container doesn't touch the sound itself: it's the same stream in a different box.

Will the WEBM file be bigger or smaller than my MP3?

About the same, plus a sliver of container overhead. The audio stream is unchanged; WEBM just adds a video-shaped envelope.

Where will the WEBM file play?

Every modern browser; hit-and-miss in editing apps and on Apple hardware. That's the usual reason people leave MP3 behind: WEBM simply opens in more of the places that matter.

How long does MP3 to WEBM conversion take?

It scales with length and resolution: short clips finish in seconds, long HD videos can take a few minutes. Files auto-delete within an hour after.

More ways to handle these formats

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