VOB to 3GP converter
Convert VOB to 3GP in seconds, free and unlimited. No upload, no sign-up, no watermark: your video never leaves your device.
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Quick answer: To convert VOB to 3GP, add the VOB file to the iHateFiles VOB to 3GP 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. 3GP is not.
Should you convert VOB to 3GP?
Yes. VOB is a format most current software no longer opens, so converting it is the reliable way to keep watching it. 3GP 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 H.264 Baseline video with AAC sound at 96 kbps into the 3GP. 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.
Expect a smaller 3GP
H.264 Baseline video is a much more efficient codec than what a VOB holds, so at the same visual quality the 3GP is usually a third to a half of the size.
Extra tracks may not survive
A VOB can carry several audio tracks and subtitle tracks. 3GP 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 3GP as comb-like tearing on anything that moves. Restore Old Video removes it and can write the 3GP in the same pass.
Where the 3GP will play
3GP plays on old feature phones, VLC, and most modern players.
VOB and 3GP side by side
| VOB | 3GP | |
|---|---|---|
| Inside the file | interlaced MPEG-2 video with AC3 or MP2 sound, straight off a DVD | H.264 Baseline video with AAC sound at 96 kbps |
| Compression | Lossy | Lossy |
| Carries sound | Yes | Yes |
| Plays on | Needs converting first | old feature phones, VLC, and most modern players |
| 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 3GP. Converting a 3GP does not improve it. The detail was never recorded, and upscaling only makes the file bigger.
How to convert VOB to 3GP
- Add your VOB file. It is read from your disk and stays there.
- Check the settings. The output format is already set to 3GP.
- Press convert and the 3GP file is saved back to your device.
Questions
How do I convert VOB to 3GP?
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 3GP 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 3GP lose quality?
3GP 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.