FLV → MP3
Extracts the audio track of an FLV video as MP3 (64–320kbps), for archiving sound from old courseware, concerts and recordings.
Drag files here or click to upload (multiple files supported)
Ctrl+V to paste from clipboard
How to convert FLV to MP3
- 1Upload your FLV file by dragging, clicking, or pasting.
- 2Adjust quality settings if needed.
- 3Click 'Convert Now' and wait for the conversion to complete.
- 4Download your converted MP3 file.
About FLV to MP3 conversion
FLV is a Flash Video streaming container launched in 2002, capable of encapsulating video content with MP3 or AAC audio. MP3 is a lossy audio encoding standardized in 1993, compatible with all playback devices. This conversion is used to extract audio content from legacy FLV files.
The output MP3 bitrate can be adjusted between 64 and 320kbps. The sample rate and channel count of the original FLV audio are retained, and existing ID3 metadata from the original audio is carried over to the output file. Higher bitrate results in larger output file size and lower audio quality loss.
This conversion is suitable for extracting audio from FLV files downloaded from early video sites and recorded courseware FLV files, for playback on portable players and secondary editing of audio content, and is compatible with all mainstream operating systems and playback devices.
FLV vs MP3: technical comparison
| Feature | FLV | MP3 |
|---|---|---|
| Released | 2002 | 1993 |
| Developer | Macromedia / Adobe | Fraunhofer IIS |
FAQ about FLV → MP3
Will audio quality change after conversion
A certain amount of audio quality loss occurs. Output is encoded with FFmpeg, higher bitrate settings result in less quality loss. Output at the maximum 320kbps bitrate meets the requirements of most common use cases.
Will original metadata be retained
Existing audio ID3 metadata in the FLV is retained and fully migrated to the output MP3 file, no manual re-editing of metadata tags is required from the user.
What is the maximum single file size
The maximum upload size for a single file for this tool is 50MB, only one file can be converted at a time, and the maximum duration of the FLV file is 10 minutes. Files exceeding the limit will be rejected.
Do you keep my files after conversion
Files are uploaded to the server via HTTPS for conversion. Immediately after conversion is complete, the server deletes both the source file and the output file, no storage is performed, to protect user privacy.