3GP → MP4
Re-encodes 3GP clips (H.263/AMR) from early phones and MMS as H.264 + AAC MP4, making legacy mobile footage playable today.
Drag files here or click to upload (multiple files supported)
Ctrl+V to paste from clipboard
How to convert 3GP to MP4
- 1Upload your 3GP file by dragging, clicking, or pasting.
- 2Adjust quality settings if needed.
- 3Click 'Convert Now' and wait for the conversion to complete.
- 4Download your converted MP4 file.
About 3GP to MP4 conversion
3GP is a mobile device container defined by 3GPP in 2003, designed for 2G and 3G feature phones, it encapsulates H.263 or MPEG-4 Part 2 video. MP4 is a universal container compatible with all cross-platform devices. This conversion is used for playback adaptation on modern devices.
The conversion is processed based on FFmpeg, uses CRF constant quality mode to control output quality, retains the original audio track, outputs in standard MP4 container. The original file size characteristic will not change significantly, and supports faststart structure that enables progressive playback.
It is suitable for importing videos shot by old feature phones to modern smartphones and computers for playback. Please confirm the original file duration does not exceed 10 minutes before conversion. The converted file can be opened directly in mainstream players and browsers.
3GP vs MP4: technical comparison
| Feature | 3GP | MP4 |
|---|---|---|
| Released | 2003 | 2001 |
| Developer | 3GPP | MPEG |
FAQ about 3GP → MP4
Will the video quality decrease after conversion
The conversion process re-encodes the video, and quality change is controlled by the CRF parameter. We use official standard FFmpeg parameters to control quality, no unnecessary quality loss will occur.
Will the original audio track be preserved
The original audio track will be preserved. The output transcodes the original audio to AAC, the universal audio format for MP4, to meet the playback requirements of all mainstream players.
What file size is supported for conversion
The maximum single file size is 50MB, only one file can be converted per conversion, and the maximum total video duration is 10 minutes. Files exceeding the limit cannot be processed.
Will my files be stored
Conversion is completed on the server side, files are uploaded and converted via HTTPS. The server deletes the source file and output file immediately after conversion completes, no storage is performed.