MP4 to 3GP Converter

MP4 to 3GP — Which Format Does Your Device Actually Need?

3GP is the lightweight mobile container that 3GPP introduced in 2003 for early 3G phones; MP4 is the general-purpose successor that almost every modern device plays. Convert MP4 to 3GP when you need a clip to open on an older feature phone, share it over a slow 2G/3G connection, or keep the file as small as possible. If your target device is a smartphone made in the last decade, you usually want MP4 (or a compressed MP4) instead — the comparison below shows where each one wins.

Side-by-side Comparison

3GP is a simplified relative of MP4 — both are built on the ISO base media file format — so the conversion is a real transcode of the audio and video streams into codecs an older handset can decode, not just a rename of the file.

When to Pick 3GP

• Your target is an older feature phone or basic Android/Symbian handset that lists .3gp as a supported format.
• You need the smallest possible file to send over a 2G/3G connection, Bluetooth, or as a basic file transfer.
• Storage is tight and a low-resolution copy is acceptable for the content (a short clip, a voice-led recording).
• You specifically need AMR audio, the narrowband speech codec built into the 3GP container.

When to Stay on MP4 (or Just Compress It)

• Your device is a smartphone, tablet, or computer from the last decade — it almost certainly plays MP4 already.
• You want to keep HD resolution and broad codec support for editing or re-uploading later.
• You only need a smaller file, not an older container: compress the MP4 or use the Video Compressor to shrink it while staying in MP4.
• You are targeting an older CDMA-network phone specifically — that lineage uses the .3g2 sibling, so convert MP4 to 3G2 instead.

How to Convert MP4 to 3GP

1. Upload Your MP4 File: Drag and drop your .mp4 (or .m4v) file onto the page, or click "+ Add Files" to browse. You can queue several clips and convert them with the same settings.
2. Set the Quality Preset: Open Advanced Options and choose a Quality Preset (Lowest through Highest). For old-phone compatibility and the smallest file, a lower preset is usually the right call; the default is tuned for a reasonable balance.
3. Shrink the Resolution (Optional): Under Video resolution, pick a smaller Preset Resolution (such as 240p or 144p) so the output matches a small phone screen — this is where most of the size savings come from. You can also Trim to a Time Range to export just the part you need.
4. Convert and Download: Click "Convert" and download your 3GP file. No sign-up, no watermark.

Frequently Asked Questions

Will MP4 to 3GP lose quality?

Yes — this is a lossy transcode into a format designed for low bandwidth, so expect a visible drop, especially in resolution and detail. That trade-off is the point: 3GP exists to make a clip small and playable on limited hardware. If you do not actually need the 3GP container, compressing the MP4 instead will keep far more quality at a similar file size.

What codecs does the 3GP output use?

The 3GP container holds H.263, MPEG-4 Part 2, or H.264/AVC video alongside AMR or AAC audio, per the 3GPP TS 26.244 specification. On this page you can set the Video Codec and Audio Codec under Advanced Options; the default pairing is chosen for broad compatibility with older phones rather than maximum quality.

Will a 3GP file play on a modern smartphone?

Often, but not always. Many current Android and iOS devices have dropped built-in 3GP support because they standardized on MP4/H.264. If the recipient is on a recent phone, MP4 is the safer choice; reach for 3GP only when you know the target device specifically supports it.

How small will the 3GP file be?

It depends mostly on the resolution, length, and quality preset you choose, so we do not promise a fixed number. In our testing, dropping a short 1080p MP4 to a 144p/240p 3GP with a low quality preset produced a dramatically smaller file — the kind of size that transfers over Bluetooth or a slow connection — at the cost of on-screen detail.

What is the difference between 3GP and 3G2?

Both are mobile containers built on the same ISO base media file format, but 3GP (.3gp) came from 3GPP for GSM/UMTS networks, while 3G2 (.3g2) came from 3GPP2 for older CDMA networks and supports a slightly narrower set of audio codecs. If your target phone is on a CDMA carrier, convert to 3G2 instead.

Can I convert 3GP back to MP4 later?

Yes. If you receive a 3GP clip and want it to play and edit cleanly on a modern device, run the reverse with 3GP to MP4. Note that re-encoding will not restore detail that was discarded when the file was first reduced to 3GP — quality lost in compression does not come back.

Is the conversion private?

Your file is uploaded over an encrypted connection, processed on our servers, and the output is returned to you. Uploaded files are deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public.