M2V to FLV converter
Convert M2V to FLV in seconds, free and unlimited. No upload, no sign-up, no watermark: your video never leaves your device.
Last updated
Quick answer: To convert M2V to FLV, add the M2V file to the iHateFiles M2V to FLV converter and press Convert. The conversion runs in your browser, so the file is never uploaded, and it is free with no sign-up, watermark or size limit. M2V is a format most software has stopped opening. FLV is not.
Should you convert M2V to FLV?
Yes. M2V is a format most current software no longer opens, so converting it is the reliable way to keep watching it. FLV is a reasonable target; MP4 is the safest.
The picture is re-encoded
An M2V usually holds a bare MPEG-2 video stream with no sound at all. This writes Sorenson Spark (FLV1) video with MP3 sound into the FLV. Both sides are compressed with loss, so this is a second generation: leave the quality at its default or higher, because the encoder is working from M2V artefacts rather than the original.
There is no sound to carry
An M2V carries no audio track, so the FLV comes out silent. If the sound exists as a separate file, add it afterwards with the Replace Audio tool.
Watch for interlacing
M2V video from a DVD, camcorder or broadcast is often interlaced, which shows up in the FLV as comb-like tearing on anything that moves. Restore Old Video removes it and can write the FLV in the same pass.
Where the FLV will play
FLV plays on VLC and very little else since Flash was retired in 2020.
M2V and FLV side by side
| M2V | FLV | |
|---|---|---|
| Inside the file | a bare MPEG-2 video stream with no sound at all | Sorenson Spark (FLV1) video with MP3 sound |
| Compression | Lossy | Lossy |
| Carries sound | No | Yes |
| Plays on | Needs converting first | VLC and very little else since Flash was retired in 2020 |
| Here | Read only | Read and write |
What usually goes wrong
About the M2V. If the converted file is silent, that is not a fault: M2V holds no audio track at all.
About the FLV. If you have FLV files they are probably old downloads worth rescuing, and converting them to MP4 is the way to keep them watchable.
How to convert M2V to FLV
- Add your M2V file. It is read from your disk and stays there.
- Check the settings. The output format is already set to FLV.
- Press convert and the FLV file is saved back to your device.
Questions
How do I convert M2V to FLV?
Open this page, add your M2V file, and press convert. The file is decoded and re-encoded by your own browser and saved back to your device. Nothing is uploaded.
Is this M2V to FLV converter free?
Yes, completely. There is no account, no sign-in, no watermark and no daily limit, because there is no server doing the work. Your own device does it.
Are my files uploaded anywhere?
No. There is no upload endpoint. The conversion runs inside this browser tab, so your file never leaves your device. You can open your browser's network panel and watch: nothing carrying your file is sent.
Is there a file size limit?
No fixed limit. Because the work happens on your machine there is no server quota. The only ceiling is your own device's memory, which for video means very large files may be slow.
Will converting to FLV lose quality?
FLV is a lossy format, so some detail is discarded. The quality control on this page decides how much. The default is set high enough that most people cannot see the difference.
Can I convert several M2V files at once?
Yes. Add as many as you like and they are converted one after another, then offered as a single ZIP.