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Convert.3gp · .3g2

Convert 3GP to MP4 online

100% localFiles never leave your device — no upload, no account, no tracking.
About 3GP to MP4

Convert legacy 3GP and 3G2 clips from older phones into MP4, the format that plays on virtually every modern device, browser, and player. We re-encode to H.264 at a quality you control.

The transcode runs entirely in your browser via WebAssembly — FFmpeg compiled to WASM — so your 3GP file is never uploaded to any server.

How it works
  1. 01

    Add a 3GP

    Drop your 3GP or 3G2 file onto the page or pick it from your device.

  2. 02

    Set quality

    Choose a CRF value for the H.264 output quality.

  3. 03

    Convert

    Click Convert to encode an MP4 locally in your browser.

  4. 04

    Download

    Save the MP4 file.

Features
H.264 outputmodernizes old videoadjustable quality
Frequently asked
How does the 3GP to MP4 converter work?
Convert legacy 3GP and 3G2 clips from older phones into MP4, the format that plays on virtually every modern device, browser, and player. We re-encode to H.264 at a quality you control.
Are my files uploaded to a server?
No. Everything runs entirely in your browser using local JavaScript and WebAssembly. Your files never leave your device.
Does it cost anything or require an account?
No. The converter is free, needs no sign-up, and runs locally in your browser.
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