Convert FLV to AAC Online
FLV files are the format that powered the Flash-video era and early live streaming sites. Converting to AAC gives you streaming, mobile audio, iTunes/Apple Music.
How to convert FLV to AAC
- Upload your FLV file. Drag it onto the box above or click to browse. Files up to 200 MB are accepted.
- Choose AAC as the output. The target format is pre-selected on this page — just press “Convert now”.
- Download the result. Conversion runs on our own server and the download starts as soon as it is ready. Your files are deleted automatically.
Why convert FLV to AAC?
FLV is the format that powered the Flash-video era and early live streaming sites. AAC is the modern successor to MP3, delivering better quality at the same bitrate. That difference is exactly why converting between them is so common: AAC is the better choice for streaming, mobile audio, iTunes/Apple Music.
FLV vs AAC: key differences
| FLV | AAC | |
|---|---|---|
| File type | legacy container | lossy |
| Typical use | legacy web video, old streaming archives | streaming, mobile audio, iTunes/Apple Music |
| Compatibility | Deprecated — Flash is gone, so conversion to MP4 is almost always required. | Excellent support across phones, browsers and streaming platforms. |
Tips for a clean FLV to AAC conversion
- Deprecated — Flash is gone, so conversion to MP4 is almost always required.
- Use the highest-quality source FLV you have — converting a compressed file again cannot restore lost detail.
- If you only need a smaller file, try a lower resolution or bitrate instead of a different format.
- Keep the original FLV until you have checked the converted AAC opens the way you expect.
Frequently asked questions
How do I convert FLV to AAC?
Upload your FLV file to the converter on this page, make sure AAC is selected as the output format and click “Convert now”. When the conversion finishes the download starts automatically.
Is this FLV to AAC converter free?
Yes — it is completely free and needs no account. Files up to 200 MB are accepted, and heavy use is rate-limited so the service stays available for everyone.
Will converting FLV to AAC reduce quality?
AAC uses lossy compression, so the converted file is re-encoded. Quality loss is minimal at sensible settings, but keep the original FLV if you may need to convert again later.
What is a FLV file?
FLV is the format that powered the Flash-video era and early live streaming sites. Its technical name is Flash Video and it is typically used for legacy web video, old streaming archives.
What is a AAC file?
AAC is the modern successor to MP3, delivering better quality at the same bitrate. Its technical name is Advanced Audio Coding and it is typically used for streaming, mobile audio, iTunes/Apple Music.
Can I convert FLV to AAC on my phone?
Yes. The converter runs in the browser on Android, iOS, Windows, macOS and Linux — no app installation is required.
Are my files kept on the server?
No. Uploaded files and converted results are deleted automatically a short time after the conversion finishes.