MPG to FLV converter
Convert MPG 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 MPG to FLV, add the MPG file to the iHateFiles MPG 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. Re-encodes the picture and sound into a FLV container.
Should you convert MPG to FLV?
Do this when something specifically needs FLV. The picture is re-encoded, so it costs a little quality; if all you need is a file that plays everywhere, MP4 is usually the better target.
The picture is re-encoded
An MPG usually holds MPEG-1 or MPEG-2 video, often interlaced, from a DVD, VCD or camcorder. 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 MPG artefacts rather than the original.
Watch for interlacing
MPG 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.
MPG and FLV side by side
| MPG | FLV | |
|---|---|---|
| Inside the file | MPEG-1 or MPEG-2 video, often interlaced, from a DVD, VCD or camcorder | Sorenson Spark (FLV1) video with MP3 sound |
| Compression | Lossy | Lossy |
| Carries sound | Yes | Yes |
| Plays on | Windows Media Player, VLC and DVD authoring software | VLC and very little else since Flash was retired in 2020 |
| Here | Read and write | Read and write |
What usually goes wrong
About the MPG. An MPG from a DVD is interlaced, so it shows comb-like horizontal tearing on movement when played on a computer. Restore Old Video removes it while converting.
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 MPG to FLV
- Add your MPG 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 MPG to FLV?
Open this page, add your MPG 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 MPG 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 MPG files at once?
Yes. Add as many as you like and they are converted one after another, then offered as a single ZIP.