Convert MP3 to 3GP Online
MP3 files are the most compatible audio format ever made — plays on everything and keeps files small. Converting to 3GP gives you legacy mobile video, feature-phone recordings.
How to convert MP3 to 3GP
- Upload your MP3 file. Drag it onto the box above or click to browse. Files up to 200 MB are accepted.
- Choose 3GP as the output. The target format is pre-selected on this page — just press “Convert now”.
- Download the result. Conversion runs on our own server and the download starts as soon as it is ready. Your files are deleted automatically.
Why convert MP3 to 3GP?
People convert MP3 to 3GP mainly for compatibility. Universal support. Quality loss above ~128 kbps is minimal for most listeners. 3GP, by contrast, is built for legacy mobile video, feature-phone recordings, and obsolete on modern phones; convert to MP4 for playback.
MP3 vs 3GP: key differences
| MP3 | 3GP | |
|---|---|---|
| File type | lossy | lossy |
| Typical use | music, podcasts, universal playback | legacy mobile video, feature-phone recordings |
| Compatibility | Universal support. Quality loss above ~128 kbps is minimal for most listeners. | Obsolete on modern phones; convert to MP4 for playback. |
Tips for a clean MP3 to 3GP conversion
- Universal support. Quality loss above ~128 kbps is minimal for most listeners.
- Use the highest-quality source MP3 you have — converting a compressed file again cannot restore lost detail.
- If you only need a smaller file, try a lower resolution or bitrate instead of a different format.
- Keep the original MP3 until you have checked the converted 3GP opens the way you expect.
Frequently asked questions
How do I convert MP3 to 3GP?
Upload your MP3 file to the converter on this page, make sure 3GP is selected as the output format and click “Convert now”. When the conversion finishes the download starts automatically.
Is this MP3 to 3GP converter free?
Yes — it is completely free and needs no account. Files up to 200 MB are accepted, and heavy use is rate-limited so the service stays available for everyone.
Will converting MP3 to 3GP reduce quality?
3GP uses lossy compression, so the converted file is re-encoded. Quality loss is minimal at sensible settings, but keep the original MP3 if you may need to convert again later.
What is a MP3 file?
MP3 is the most compatible audio format ever made — plays on everything and keeps files small. Its technical name is MPEG-1 Audio Layer III and it is typically used for music, podcasts, universal playback.
What is a 3GP file?
3GP is a low-bandwidth format designed for older mobile phones. Its technical name is 3GPP Multimedia and it is typically used for legacy mobile video, feature-phone recordings.
Can I convert MP3 to 3GP on my phone?
Yes. The converter runs in the browser on Android, iOS, Windows, macOS and Linux — no app installation is required.
Are my files kept on the server?
No. Uploaded files and converted results are deleted automatically a short time after the conversion finishes.