Add your 3GP file
Drop one or more .3gp files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
3GP to VOB
Pulling the soundtrack out of a .3gp video into .vob audio keeps what you can hear and drops the picture entirely. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop 3GP files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting 3GPP video to DVD video object
Pulling the soundtrack out of a .3gp video into .vob audio keeps what you can hear and drops the picture entirely. A .3gp file is a lightweight container defined by the 3GPP standards body for video recorded and shared on mobile phones. It packs low-bitrate video and compressed speech with minimal overhead, which made .3gp the format of MMS messages and early camera phones.
A .vob file is a Video Object from a DVD's VIDEO_TS folder, holding the disc's actual movie data. Each .vob multiplexes MPEG-2 video, audio, subtitle subpictures, and navigation commands, split into pieces of about one gigabyte to satisfy the DVD specification. For this route the practical draw is contains the disc's content exactly as authored, with all tracks intact and mPEG-2 decodes in any desktop player without licensing hurdles — balanced against files split at roughly 1 GB boundaries and must be rejoined for continuous playback, which is worth knowing before you commit a large batch.
Why convert 3GP to VOB?
The usual reason to take .vob audio out of a .3gp file is that only the sound matters — a talk, interview, song, or podcast segment. Keeping the video stream would waste storage, and a dedicated audio file is easier to trim, tag, and play. On the source side, picture quality is poor by any modern standard; on the target side, the payoff is contains the disc's content exactly as authored, with all tracks intact, which is exactly what you want for backing up home-movie DVDs before the media degrades.
3GP vs VOB at a glance
| Aspect | 3GPP video (.3gp) | DVD video object (.vob) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Container — quality depends on the codecs and settings inside |
| How it stores data | iSO base media structure like MP4, but with a deliberately restricted codec list | an MPEG-2 program stream variant extended with navigation packs (PCI/DSI) that DVD players use for menus and seeking |
| Strongest at | recovering videos from old feature phones and their memory cards | backing up home-movie DVDs before the media degrades |
| Weak spot | picture quality is poor by any modern standard | files split at roughly 1 GB boundaries and must be rejoined for continuous playback |
| Metadata | a small set of 3GPP-defined asset atoms for title, author, and location exists, though most recording phones never wrote them | none inside the VOB itself; titles, chapters, and menu logic live in the accompanying IFO files on the disc |
Pick VOB as the output
Select .vob in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if VOB is selectable, the route is real and validated.
Convert on your device
Press Convert. A WebAssembly FFmpeg build demuxes the audio track and re-encodes it locally; the video stream is simply discarded.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid VOB file. Outputs keep the original filename with the .vob extension.
3GP to VOB questions, answered
Will converting 3GP to VOB lose quality?
Since 3gp is container-oriented and vob is container-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .vob itself requires.
Is it private to convert 3GP files here?
Yes — the .3gp file is processed inside your browser tab and never uploaded. A WebAssembly FFmpeg build demuxes the audio track and re-encodes it locally; the video stream is simply discarded. Close the tab and the file is gone from memory.
Where will the VOB file work?
VLC and most desktop players open .vob files directly, but phones, TVs, and browsers do not, since the format assumes a DVD player's navigation logic. Home-burned discs convert freely to MP4, while retail discs carry CSS encryption.
Will the VOB file be bigger or smaller than my 3GP?
Much smaller — the video stream is usually 80–95% of a .3gp file's weight, and it is discarded entirely. The remaining audio is re-encoded at the bitrate implied by your quality setting.
What happens to the metadata in my 3GP file?
This converter strips container metadata deliberately (the FFmpeg command runs with metadata mapping disabled) so exported files do not leak recording details. In the source, a small set of 3GPP-defined asset atoms for title, author, and location exists, though most recording phones never wrote them; none of it is transmitted anywhere because the file never leaves your browser.
Can I convert VOB back to 3GP?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .3gp → .vob → .3gp is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.