Convert FLV to AAC
Free, fast and secure — convert FLV to AAC right in your browser.
FLV
AAC
Pull the audio out of your FLV as AAC
Converting FLV to AAC extracts a clean audio track from your video, giving you a compact AAC audio you can play, share or add to a playlist without the video.
How to convert FLV to AAC
- 1 Drop your FLV file into the converter above.
- 2 It is converted to AAC automatically — no settings to fiddle with.
- 3 Download your new AAC file instantly.
FLV vs AAC
| Feature | FLV | AAC |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | No | No |
| Animation | Yes | No |
| MIME type | video/x-flv | audio/aac |
| Best for | Rescuing old Flash video by converting it to MP4 or WebM. | Streaming and modern playback where quality-per-byte beats raw compatibility. |
About the formats
FLV
Flash video
FLV is the old Flash video container. Once dominant for web streaming, it is now obsolete and almost always needs converting to a modern format like MP4.
Strengths
- Small files for its era
- Plays in legacy Flash players
- Common in old web archives
Limitations
- Obsolete — Flash is discontinued
- No support on modern devices
- Lower quality than modern codecs
Best for: Rescuing old Flash video by converting it to MP4 or WebM.
AAC
AAC audio
AAC is the successor to MP3, offering better sound at the same bitrate. It is the standard for streaming services, YouTube and Apple devices.
Strengths
- Better quality than MP3 at equal size
- Standard for streaming platforms
- Wide modern-device support
Limitations
- Lossy compression
- Slightly less universal than MP3
- No lossless mode
Best for: Streaming and modern playback where quality-per-byte beats raw compatibility.
Frequently asked questions
Upload your FLV file above and it is converted to AAC automatically. When it is ready, download your new AAC audio — the whole thing takes just a few seconds in your browser.
Converting FLV to AAC extracts a clean audio track from your video, giving you a compact AAC audio you can play, share or add to a playlist without the video.
Converting between compressed formats can introduce minor changes, but our converter keeps your AAC looking as close to the original as possible.
Yes. The converter is free to use, with no watermark and no sign-up required.
Your files are processed securely and are never shared with anyone.