Free online MOV to 3GPP converter

Older mobile phones, messaging systems, and embedded video players may accept 3GPP video but reject QuickTime MOV files. Converting changes the container and often requires re-encoding the video and audio to codecs supported by those devices.

What the MOV format is

MOV is a multimedia container developed by Apple for QuickTime. It can store video, audio, subtitles, timecode, metadata, and multiple codec types, including H.264, HEVC, ProRes, and uncompressed media.

QuickTime Player, Apple camera software, iPhone and iPad workflows, video editors such as Final Cut Pro and Adobe Premiere Pro, and many screen-recording applications create or export MOV files. A MOV file may work correctly on a computer while remaining incompatible with a phone because the container, codec, resolution, or audio format is unsupported.

What the 3GPP format is

3GPP is a mobile multimedia container usually identified by the .3gp extension. It was designed for 3G mobile networks and older phones, with profiles commonly using H.263 or MPEG-4 Part 2 video and AMR-NB or AAC audio.

3GP files are typically smaller and use lower resolutions, frame rates, and bitrates than camera-original MOV files. The format is useful when a legacy handset, MMS workflow, basic media player, or embedded system specifically requires .3gp.

How to actually convert MOV to 3GPP

Using 101convert.com

1. Open the MOV-to-3GPP converter on 101convert.com; the conversion is free and requires no software installation.
2. Select input.mov from your device.
3. Choose 3GPP or .3gp as the output format, then start the conversion.
4. Download the resulting file and test it on the target phone or player.

Using FFmpeg

FFmpeg provides codec and size control when the target device has strict requirements. A conservative profile for older 3G phones is:

ffmpeg -i input.mov -c:v h263 -vf scale=176:144 -r 15 -b:v 300k -c:a amr_nb -ar 8000 -ac 1 -b:a 12.2k output.3gp

This produces Quarter Common Intermediate Format video at 176×144 pixels, 15 frames per second, H.263 video, and narrowband AMR audio. For a newer device that supports MPEG-4 Part 2 and AAC, use:

ffmpeg -i input.mov -c:v mpeg4 -vtag mp4v -vf scale=320:-2 -r 15 -b:v 500k -c:a aac -ar 16000 -ac 1 -b:a 32k output.3gp

If FFmpeg reports that an AMR-NB encoder is unavailable, use the AAC profile or install an FFmpeg build with the required encoder. The input filename and output filename can contain spaces when enclosed in quotation marks.

Quality, compatibility, and limitations

Converting to 3GP is usually lossy: reducing resolution, bitrate, and frame rate lowers detail and may introduce blocking or motion blur. Re-encoding cannot restore quality already discarded in the MOV source.

Codec support varies substantially between 3GPP devices. Older phones are most likely to accept H.263 with AMR-NB, while later phones may accept MPEG-4 Part 2, H.264, AAC, or only a specific resolution and maximum file size. A file can have the correct .3gp extension and still fail if its codecs, frame dimensions, audio sample rate, or bitrate exceed the device profile.

Use even-numbered dimensions for MPEG-4 or H.264 output, keep the frame rate at or below the target device's specification, and verify audio synchronization after conversion. 3GP is not a suitable archival format; retain the original MOV when preserving camera quality or editability matters.