Convert FLV to AAC online. This conversion removes the picture from the FLV file and saves its audio track as AAC. Free batch processing with no signup or watermark.
Add one or more FLV files. You can review the complete batch before processing it.
AAC is already selected for this page. Add multiple videos, choose the audio output and set a trim range when only part of the track is needed.
Start the batch, then download and check the finished AAC file or files.
This conversion removes the picture from the FLV file and saves its audio track as AAC. Video resolution and frame rate do not carry into the result.
FLV (Flash Video) was the format of web video during the Adobe Flash era. Flash is now discontinued and modern browsers no longer play FLV, so old FLV clips usually need converting to MP4 to be watchable today.
FLV no longer plays in browsers; use VLC to view it, or convert it to MP4 for phones, editors and everywhere else.
AAC (Advanced Audio Coding) is the successor to MP3, delivering better sound at the same file size. It is the default for Apple Music, YouTube and most streaming services, and is supported across virtually all modern devices.
AAC plays in Apple Music/iTunes, QuickTime, VLC and on nearly all modern phones, browsers and players.
ToolSpice can convert your FLV files to these other formats:
These other formats can be converted to AAC on ToolSpice: