Convert 3GP to MP4
Bring videos from old mobile phones back to life as MP4.
Files are processed on our server in Europe. Download links expire after 60 minutes; files are then deleted automatically.
Why use Video Compressor
Private and secure
Your video is sent over an encrypted connection to our server in Europe and stored under a random ID. It is never shared with third parties or used to train AI. Download links expire after 60 minutes; files are then deleted automatically, normally within 75 minutes. Read the privacy policy
Honest results
Choose quality and resolution. Progress comes from the encoder itself, and the result shows the exact size of your MP4 next to the original.
Free, no sign-up
Video Compressor is free with no account, no watermark and no ads. It works in any modern browser on phone or desktop.
In short
3GP to MP4 converts 3GPP and 3GPP2 videos from older mobile phones, with H.263, MPEG-4 or H.264 video and AMR or AAC audio, into MP4 with H.264 and AAC. The original small resolution is kept. Files up to 1 GB and 30 minutes are supported.
| Accepted formats | MP4, MOV, M4V, 3GP, WebM, MKV, AVI, WMV, FLV, MPEG, MTS/TS, OGV |
|---|---|
| Maximum file size | 1.00 GB |
| Output | MP4 (H.264 video, AAC audio), max 1080p, never upscaled |
| Video limits | Up to 30 minutes, up to 4K input |
| Target size | Not on converter pages; the video compressor sets target sizes |
| Units | 1 KB = 1,000 bytes; 1 MB = 1,000,000 bytes |
| Where files are processed | On our server in Europe; not sent to third parties |
| Retention | Download link expires after 60 minutes; files deleted automatically, normally within 75 minutes |
| Price | Free, no account, no watermark |
| Typical sources | Feature phones and early smartphones (Nokia, Sony Ericsson, Samsung, early Android), MMS video messages |
| Codecs read | H.263, MPEG-4 Part 2 and H.264 video; AMR-NB, AMR-WB and AAC audio |
How to use it
- Choose or drop your 3GP file (up to 1 GB, 30 minutes), or import it from a link.
- Keep the High quality preset, or pick a lower resolution if you also want a smaller file.
- Select Convert to MP4 and keep the tab open while it uploads and converts.
- Preview the MP4 and download it.
Why convert 3GP to MP4?
3GP was built for 2000s-era phones and mobile networks. Today's editors, photo apps and social platforms often reject it, and AMR audio isn't supported by many players. MP4 with H.264 and AAC is accepted everywhere.
Small, low-frame-rate originals
Old phone videos are often 176×144 or 320×240 at 15 frames per second. The MP4 keeps that resolution and frame rate; it doesn't invent detail.
Questions
Is 3GP to MP4 conversion lossless?
No. The video is re-encoded to H.264, which is lossy, but converter pages start at the High quality preset, where the difference is hard to see at normal viewing size. The picture is never upscaled, and the shorter side is capped at 1080 pixels.
Why does the audio sound thin?
AMR audio was designed for voice calls and records only up to about 4 kHz (AMR-NB). Conversion keeps what is there but can't restore missing frequencies.
What happens to my file after conversion?
It's stored under a random ID on our server in Europe. The download link expires after 60 minutes and the file is then deleted automatically, normally within 75 minutes. Canceling deletes it immediately.
Convert other formats to MP4
Related tools
- FLV to MP4Rescue old Flash Video files now that Flash Player is gone.
- AVI to MP4Give old DivX and Xvid AVI videos a second life as MP4 that plays on phones and TVs.
- MOV to MP4Turn QuickTime MOV files from iPhone, Mac and cameras into MP4 that plays everywhere.
- Video compressorMake any video smaller, with a target size.
Last reviewed October 31, 2026.