Convert 3GP to MP4

Transform your mobile video format for older phones into MP4 format. Free, private, and browser-based.

How it works

  1. Upload 3GP Files — Drag and drop your 3GP files into the converter, or click to browse. Common sources: old mobile phones, mms messages.
  2. Convert to MP4 — The converter processes your files to MP4 format entirely in your browser. No files are uploaded to any server — your privacy is guaranteed.
  3. Download Results — Download your converted MP4 files instantly. For multiple files, download individually or as a ZIP archive.

Why convert 3GP to MP4

  • Ensure maximum compatibility — MP4 works on virtually every device and platform
  • Leverage MP4 advantages: universal playback on every platform
  • Overcome 3GP limitations: very low quality
  • Upload to websites and platforms that require or prefer MP4 format

FAQ

Is 3GP to MP4 conversion free?
Yes, Fileza.io converts 3GP to MP4 completely free with no limits on file size or number of conversions. No hidden fees, no watermarks, and no account required.

Will I lose quality converting 3GP to MP4?
Both 3GP and MP4 use lossy compression. Output quality is excellent at high quality settings (85%+) — most people cannot see any difference.

Is it safe to convert 3GP to MP4 online?
Absolutely. Unlike most online converters, Fileza.io processes your files entirely in your browser using WebAssembly. Your 3GP files are never uploaded to any server — the conversion runs on your own device, keeping your files 100% private.

Can I convert multiple 3GP files to MP4 at once?
Yes, Fileza.io supports batch conversion. Drag and drop multiple 3GP files at once and they will all be converted to MP4 simultaneously. Download them individually or as a ZIP archive.

Does 3GP to MP4 conversion work on mobile?
Yes, the converter works on any device with a modern web browser — iPhones, iPads, Android phones, and tablets. No app installation required.

Will the converted MP4 files be smaller or larger than 3GP?
MP4 files are generally smaller than 3GP files. The exact reduction depends on your quality settings and the content of your files.

How long does 3GP to MP4 conversion take?
Most conversions complete in seconds. The exact time depends on file size and your device performance. Since processing happens locally in your browser, faster devices convert more quickly. Video files may take longer due to re-encoding.