Free tools › Audio and video

3GP to MP4

Clips from feature phones and early smartphones, into a file today’s phones play.

This one runs on your credits. Clips from feature phones and early smartphones, into a file today’s phones play.

Sign in and get 500 free credits every month — enough for many files — then drop the file in the workbench and run 3gp to mp4 there.

Pick a file below to see exactly what it would cost.

More free conversions, where you upload. The Fylane extension does the same work inside any upload form, on its own free share every day.Add to Chrome

How to convert 3GP to MP4

Drop the video.
Nothing to choose.
Press Convert and download the MP4.

What happens to your file

The video is decoded and re-encoded as H.264 with AAC sound in a fast-start MP4 — the one file phones, TVs, Windows, Macs and every browser play — at a quality most people cannot tell from the original.

Old phone clips are small and low resolution; nothing is enlarged — the MP4 is the same picture in a modern wrapper.

Questions

Will it look better?

No — the pixels are what the old phone recorded. It will play everywhere, which the 3GP did not.

Do it once, not on every form

Fixing a file here means downloading it and going back to the form. The Fylane extension does this work inside the form instead, on the file you already have.

And it keeps the result. The next application that asks for a résumé, a cover letter and a photo fills all three from one tap, each one refitted to what that site accepts.

Your files stay in the browser, encrypted, on your machine. Nothing is uploaded to keep them and nothing is sent anywhere to fill a form.

Filmed from the extension: three upload fields on a job application, filled from one tap.

Add to Chrome — free What it does

Do this in code

curl -X POST https://api.fylane.dev/v1/jobs \
  -H "Authorization: Bearer $FYLANE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "file_id": "<file id>",
    "operation": "video.convert",
    "options": {}
  }'

The same operation, video.convert — Anything playable becomes H.264+AAC in a faststart MP4 — or, by `container`, MOV, MKV, VP9+Opus WebM, or Xvid+MP3 AVI for old players. Plus the small edits: mute, rotate, flip, speed (the sound keeps its pitch), reverse (60 s at most), loop. Upload first with the quickstart; every option is on the operations page. 500 free credits a month, then $5 per thousand.