Video tool
Convert MP4 Files to 3GP on Your Device
Prepare a 3GP version of MP4 in your browser for older phones and low-bandwidth delivery. Conversion stays on-device while a new 3GP file is prepared.
- Runs in your browser
- Private processing
- No install
- Files stay on device
Route MP4 → 3GP
or drop here · up to 500 MB
Preview (optional)
When your browser supports it, your video appears here. If preview does not load, you can still convert your file normally.
Preview is not available for this file
No worries — your video can still be converted. Set your file name and click Convert when you are ready.
Quick use cases
- Adapt general playback and sharing to a workflow built for compact mobile playback
- Supply 3GP when an editor, player, or delivery form will not accept MP4
- Create a 3GP copy from MP4 for older phones and low-bandwidth delivery
Workflow
- Add the MP4 media you want to process
- Name the 3GP output before processing
- Run the conversion with 3GP selected
- Open the downloaded 3GP in its intended workflow
Processing notes
- Encoding speed depends on the processor available to this tab during this MP4-to-3GP job.
- High-resolution MP4 footage increases conversion time and memory use.
- Confirm the 3GP output meets the receiving system’s technical limits.
Compatibility notes
- 3GP serves older phones and low-bandwidth delivery, whereas MP4 commonly serves phones, browsers, players, and upload forms.
- For MP4-to-3GP delivery, plan for limited resolution and codec choices.
- After leaving MP4, the receiving app must support the streams encoded inside 3GP, not only its extension.
Troubleshooting
- MP4 to 3GP taking too long? Reduce other processor activity and leave the page open until completion.
- 3GP converted from MP4 not opening? Test a compatible player and inspect the output streams.
- Inspect the generated streams when an app recognizes 3GP but refuses playback.
MP4 to 3GP converter FAQ
When does MP4 to 3GP conversion make sense?
It is useful when MP4 media created for general playback and sharing must enter a 3GP system designed for compact mobile playback.
Where is the MP4 source processed?
The browser prepares 3GP from MP4 on this device instead of sending the source to a remote conversion server.
How can I approve 3GP converted from MP4?
Test the 3GP file in the receiving app and compare duration, picture, sound and timing with the MP4 source.