VOB to FLV converter
Convert VOB 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 VOB to FLV, add the VOB file to the iHateFiles VOB 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. VOB is a format most software has stopped opening. FLV is not.
Should you convert VOB to FLV?
Yes. VOB 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
A VOB usually holds interlaced MPEG-2 video with AC3 or MP2 sound, straight off a DVD. 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 VOB artefacts rather than the original.
Extra tracks may not survive
A VOB can carry several audio tracks and subtitle tracks. FLV holds one picture and one sound, so this conversion keeps the main video and the first audio track. If you need the subtitles, save them first with Extract Subtitles.
Watch for interlacing
VOB 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.
VOB and FLV side by side
| VOB | FLV | |
|---|---|---|
| Inside the file | interlaced MPEG-2 video with AC3 or MP2 sound, straight off a DVD | Sorenson Spark (FLV1) video with MP3 sound |
| Compression | Lossy | Lossy |
| Carries sound | Yes | 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 VOB. A film is spread across several VOB files that need joining in order, and commercial DVDs are encrypted, which is a separate problem from the format.
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 VOB to FLV
- Add your VOB 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 VOB to FLV?
Open this page, add your VOB 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 VOB 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 VOB files at once?
Yes. Add as many as you like and they are converted one after another, then offered as a single ZIP.