Convert FLV to WEBM

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

Most FLV to WEBM conversions are wrapper swaps: the pictures stay pictures, they just trade FLV's box for one built for embedding on the web without licensing worries. If the codec inside your FLV is one WEBM accepts, Flippy keeps quality bit-for-bit identical; if not, it re-encodes once, carefully, at matching quality.

Why flip FLV to WEBM

FLV is a relic of the Flash era: the format YouTube grew up on, stranded when Flash died. It was born in 2002, Macromedia (later Adobe), for Flash Player, and its real weak spot is playing anywhere at all since Flash was switched off in 2020.

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 FLV to WEBM

1
Drop your FLV 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.

FLV vs WEBM, side by side

	FLV	WEBM
Born	2002, Macromedia (later Adobe), for Flash Player	2010, Google, out of its VP8 acquisition
Type	video · container	video · container
Best for	nothing new: today it's mostly old downloads waiting to be rescued	embedding on the web without licensing worries
Weak spot	playing anywhere at all since Flash was switched off in 2020	life outside the browser: editors, TVs and Apple devices get picky
Typical size	small files with dial-up-era expectations about quality	often smaller than the equivalent MP4: VP9 and AV1 squeeze harder than H.264
Plays on	Almost nothing modern; VLC and converters are its retirement home.	Every modern browser; hit-and-miss in editing apps and on Apple hardware.

Questions people ask

Will converting FLV to WEBM 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 WEBM file be bigger or smaller than my FLV?

Similar, unless a re-encode is involved: then it depends on the codec. WEBM typically runs often smaller than the equivalent MP4: VP9 and AV1 squeeze harder than H.264.

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 FLV behind: WEBM simply opens in more of the places that matter.

How long does FLV to WEBM 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

Convert FLV Change WEBM format Reduce WEBM file size WEBM Cutter Remove sound from WEBM Extract a frame from WEBM FLV Rotator