Convert AAC to FLV

AAC in, FLV out: free, no signup, and both 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 AAC into FLV for free: upload the AAC above and download it wrapped as FLV, sound untouched. No signup, and both files delete themselves within an hour.

It sounds backwards, but AAC to FLV is a real need: plenty of platforms and tools only accept video, so Flippy re-packs your AAC audio inside an FLV wrapper. Where FLV accepts your AAC's codec the sound crosses over untouched; where it doesn't, it's re-encoded once. The FLV that comes out is built for nothing new: today it's mostly old downloads waiting to be rescued.

A classic AAC to FLV job: iTunes-era rips and app exports, bound for the odd legacy pipeline that still demands Flash video.

Why flip AAC to FLV

AAC is MP3's better-trained successor: cleaner sound from the same number of bits. It was born in 1997, an MPEG all-star team: Fraunhofer, Dolby, Sony, AT&T and Nokia, and its real weak spot is older or stubborn hardware that only ever learned MP3.

FLV is a relic of the Flash era: the format YouTube grew up on, stranded when Flash died. The Flash Video container, typically holding old H.263, VP6 or early H.264 streams. That makes it the right destination when what you need is nothing new: today it's mostly old downloads waiting to be rescued.

How to convert AAC to FLV

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

Best settings for AAC to FLV

Settings for AAC to FLV: none to pick. Where the FLV container accepts your AAC's audio codec, the stream is copied bit for bit; where it doesn't, Flippy re-encodes it once and leaves the levels alone.

AAC vs FLV, side by side

	AAC	FLV
Born	1997, an MPEG all-star team: Fraunhofer, Dolby, Sony, AT&T and Nokia	2002, Macromedia (later Adobe), for Flash Player
Type	audio · lossy	video · container
Best for	streaming-grade sound at friendly file sizes	nothing new: today it's mostly old downloads waiting to be rescued
Weak spot	older or stubborn hardware that only ever learned MP3	playing anywhere at all since Flash was switched off in 2020
Typical size	similar to MP3, but it sounds better at the same bitrate: or the same at about 25% smaller	for video content, small files with dial-up-era expectations about quality; wrapping audio alone stays about the size of the AAC
Plays on	Apple everything, YouTube, Android, modern players; patchy on legacy gear.	Almost nothing modern; VLC and converters are its retirement home.

Questions people ask

Will converting AAC to FLV lose quality?

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

Will the FLV file be bigger or smaller than my AAC?

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

Where will the FLV file play?

Almost nothing modern; VLC and converters are its retirement home. That's the usual reason people leave AAC behind: FLV simply opens in more of the places that matter.

How long does AAC to FLV conversion take?

Seconds for most AAC files: there are no pictures to encode, so wrapping the audio as FLV is nearly as fast as copying it. Both files auto-delete within an hour.

More ways to handle these formats

Change AAC format FLV Converter FLV size reducer Trim FLV Speed up FLV Convert FLV to GIF