Video conversion
Convert FLV to WAV
Updated Jul 2026
FLV is an old Flash video format that holds picture and sound together, while WAV is an audio-only format with no picture at all. To convert FLV to WAV, pull the audio track out of the FLV and save it as WAV. Doing this on your own computer means the file never has to travel to someone else's server first.
- Extension
- .flv
- Type
- Video
- Typically
- Legacy web video
- Compression
- Lossy
- Extension
- .wav
- Type
- Audio
- Typically
- Uncompressed audio, recording
Convert FLV to WAV on your own computer. Nothing uploads.
How to convert FLV to WAV
- Open Morphjet and drag in the FLV file, or a whole folder of them, to convert several at once.
- Choose WAV as the output format.
- Convert. Morphjet writes the audio as WAV next to your original, and nothing leaves your machine.
FLV vs WAV: what actually changes
| FLV | WAV | |
|---|---|---|
| Contains | Video and audio together | Audio only, no picture |
| File size | Small, both parts are compressed | Large, audio stored uncompressed |
| Quality | Lossy, video and audio are both compressed | Lossless once converted, but limited by the quality of the original audio track |
| Compatibility | Needs an old Flash-era player, largely obsolete now | Opens in nearly any audio app, editor, or player |
| Good for editing audio | Awkward, you're stuck with a video file | Yes, the standard format for audio editing and mixing |
When to convert, and when not to
Convert FLV to WAV when you only care about the sound in an old FLV file, like a recorded lecture, interview, or a song, and you want to edit, sample, or archive that audio in a program that expects a clean audio file.
Keep the FLV if you still need the picture, because converting to WAV throws away the video entirely and there's no getting it back.
Why not just use an online converter?
Old FLV files often sit around from downloaded lectures, webinars, or recordings you'd rather not hand to a stranger's server just to pull the audio out. An online converter means uploading the whole video file somewhere you can't see, then waiting for a download link. Converting on your own computer keeps the file, and whatever is said in it, on your machine the whole time.
Questions
Does converting FLV to WAV lose quality?
The conversion itself doesn't lose anything further, WAV stores the audio uncompressed. But the audio inside most FLV files was already compressed when it was recorded, so the WAV can only be as good as that original track, not better.
Will I still have the video after converting?
No. WAV is audio only, so the picture is discarded during conversion. If you might need the video later, keep a copy of the original FLV.
Why is the WAV file so much bigger than the FLV?
FLV compresses its audio to keep file sizes small for streaming. WAV stores audio uncompressed, so even just the sound from a short FLV can end up several times larger as a WAV.
Can I convert FLV to WAV without uploading it anywhere?
Yes. A desktop app like Morphjet reads the FLV and writes the WAV locally, so the file doesn't need an internet connection to be converted.
Does the WAV keep any of the FLV's metadata?
Not much. WAV isn't built to carry the kind of metadata, chapters, or titles that video containers can hold, so expect a plain audio file rather than a full copy of whatever tags the FLV had.
Morphjet converts FLV, WAV, and 1,800+ other formats, all on your machine. Launching this July.