Add your WMV file
Drop one or more .wmv 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.
WMV to 3GP
Pulling the soundtrack out of a .wmv video into .3gp 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 WMV 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 Windows Media video to 3GPP video
Pulling the soundtrack out of a .wmv video into .3gp audio keeps what you can hear and drops the picture entirely. A .wmv file contains Windows Media Video, Microsoft's proprietary codec family, almost always wrapped in an ASF container. The extension was everywhere on Windows XP-era PCs, from downloaded clips to Movie Maker exports, but it has faded as MP4 became universal.
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. For this route the practical draw is extremely small files by design and structural kinship with MP4 makes conversion quick — balanced against picture quality is poor by any modern standard, which is worth knowing before you commit a large batch.
Why convert WMV to 3GP?
The usual reason to take .3gp audio out of a .wmv 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, effectively abandoned by Microsoft itself; on the target side, the payoff is extremely small files by design, which is exactly what you want for recovering videos from old feature phones and their memory cards.
WMV vs 3GP at a glance
| Aspect | Windows Media video (.wmv) | 3GPP video (.3gp) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Container — quality depends on the codecs and settings inside |
| How it stores data | aSF container carrying WMV1, WMV2, or WMV3 (VC-1) video, typically with WMA audio | iSO base media structure like MP4, but with a deliberately restricted codec list |
| Strongest at | playing old Movie Maker projects and family archives | recovering videos from old feature phones and their memory cards |
| Weak spot | effectively abandoned by Microsoft itself | picture quality is poor by any modern standard |
| Metadata | aSF content-description attributes hold title, author, copyright, and rating fields, plus extended attributes used by Windows Media Player libraries | a small set of 3GPP-defined asset atoms for title, author, and location exists, though most recording phones never wrote them |
Pick 3GP as the output
Select .3gp in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if 3GP 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 3GP file. Outputs keep the original filename with the .3gp extension.
WMV to 3GP questions, answered
Will converting WMV to 3GP lose quality?
Since wmv is container-oriented and 3gp is container-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .3gp itself requires.
Is it private to convert WMV files here?
Yes — the .wmv 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 3GP file work?
Android still opens most .3gp files, and desktop players such as VLC handle them, but iOS and web browsers generally do not. Because the codecs inside are dated, converting to MP4 with AAC audio is the standard path to modern playback.
Will the 3GP file be bigger or smaller than my WMV?
Much smaller — the video stream is usually 80–95% of a .wmv 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 WMV 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, aSF content-description attributes hold title, author, copyright, and rating fields, plus extended attributes used by Windows Media Player libraries; none of it is transmitted anywhere because the file never leaves your browser.
Can I convert 3GP back to WMV?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .wmv → .3gp → .wmv is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.