DollarWise

3GP to MP4 Converter — Free Online, In Your Browser

October 28, 2026 · 2 min read · By the DollarWise team

3GP was the video format of early camera phones, and most modern players and editors no longer handle it well. Convert your 3GP clips to MP4 (H.264 video + AAC audio), the format that plays on every phone, browser, and editor today. The conversion runs entirely in your browser with ffmpeg.wasm — no uploads, no watermarks, no sign-up. If a 3GP file uses a codec this in-browser build cannot decode, the tool reports the failure honestly instead of producing a broken file.

3GP to MP4 Converter

Turn old 3GP phone videos into universal MP4 — free, private, in your browser.

100% Free Forever No Sign-up No Credit Card Private — files never leave your browser Unlimited Use

1 Add your 3GP file

Drag & drop your 3GP here or click to browse — one video at a time
    Your file never leaves your browser — conversion runs locally with ffmpeg.wasm.

    2 Quality settings

    H.264 CRF runs 0–51. Lower CRF = better quality, bigger file. 23 is the sweet spot.
    Uncheck to produce a silent video. Re-encoding is slower than a copy — please be patient.

    3 Convert & download

    Working…

    ✅ Done — your MP4 video

    🎉 Free forever. No sign-up. No credit card. No limits.

    Convert as many videos as you like — your files never leave your browser.

    How it works

    Drop in a 3GP file, choose a quality preset, and hit Convert to MP4. The tool loads ffmpeg.wasm (single-thread build, the same engine the site’s other video converters use), decodes the 3GP, and re-encodes it as H.264 video with AAC audio in an MP4 container with faststart metadata, so the file starts playing before it fully downloads. Even dimensions are enforced, since H.264 requires them. When conversion finishes, a result card offers the MP4 for preview and download. Your video never leaves your browser.

    Everyday uses

    • Old phone archives — rescue 3GP clips from early camera phones so they play today.
    • Sharing — MP4 uploads cleanly to WhatsApp, YouTube, and every social app.
    • Video editing — MP4 imports into any editor without a codec hunt.
    • Family videos — convert childhood clips for modern phones and TVs.
    • Backups — move an obsolete format into one that will stay playable.