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WEBM to 3GP converter

Convert WEBM to 3GP in your browser. No upload and no account: the file never leaves your device, so the only size limit is your device’s memory.

I want 3GP
Quality

Applies only when the video has to be re-encoded. A straight copy keeps the original quality.

Advanced 2
Always re-encode Rebuilds the picture as H.264 (VP9 for WebM) even when it could be copied. Fixes files that won’t play on older TVs and PCs.

Bytes of your files sent anywhere: 0 B

Related conversions

Need it the other way round? Convert 3GP to WEBM

Other ways to convert WEBM

Convert other formats to 3GP

Read more about the WEBM format and the 3GP format, or see every video tool and all video conversions.

Should you convert WEBM to 3GP?

Yes, when a device or app needs 3GP. 3GP can’t carry the VP8, VP9 or AV1 video found in WEBM files, so the picture is re-encoded as H.263 or H.264, which takes about as long as the clip on a recent laptop.

Check that 3GP is really needed: it plays in old phones, VLC and some Android galleries; modern apps often refuse it, while WEBM is opens in current browsers and apps.

WEBM is the web’s open video format, holding VP8, VP9 or AV1 video with Opus or Vorbis audio; 3GP is a small mobile video format from the feature-phone era. You make 3GP only for an old handset; you convert from it to rescue old phone videos.

WEBM and 3GP compared
Property WEBM 3GP
Usually contains VP9 or AV1 video with Opus audio H.263 or H.264 video with AMR or AAC audio
Support Opens in current browsers and apps A legacy format
Plays on Chrome, Firefox, Edge and recent Safari, but not the iPhone Photos app, many editors or social uploads Old phones, VLC and some Android galleries; modern apps often refuse it
Best for Video embedded in web pages, and browser screen recordings Very old phones and low-bandwidth playback
Introduced 2010 2003

How to convert WEBM to 3GP

  1. 01

    Add your WEBM

    Drop your WEBM video onto the box, or click to choose it. It is read from your disk and stays there.

  2. 02

    Check the settings

    The output is already set to 3GP. Change the quality if you want to; the defaults suit most files.

  3. 03

    Save the 3GP

    Press convert and save the 3GP. Several files come back together as a ZIP.

What changes when WEBM becomes 3GP

Re-encoded, at a quality you choose

Because the video has to be compressed again, a little detail is lost. The default quality keeps the difference invisible; choose High for footage you’ll edit further.

3GP is an older format

You make 3GP only for an old handset; you convert from it to rescue old phone videos. For sharing, uploading or playing on phones, MP4 is the better choice.

Expect a much smaller file

WEBM: Usually a little smaller than MP4 at the same quality. 3GP: Often just a few MB a minute. Shrinking the file is often the main reason to make this conversion.

This page is put together from our notes on each format, choosing only what is true of WEBM and 3GP, so every pairing states the same facts the same way. How these pages are made.

Why it doesn’t upload

Video files are big, and uploading one just to change its container can take longer than the conversion itself. Your browser can read and write these formats, so the file never has to leave your device.

How to check for yourself

Worth knowing

  • About the WEBM. Browser screen recorders save WEBM, and the recording then fails to upload or attach almost everywhere else.
  • About the 3GP. Old 3GP clips often carry AMR audio, which many players can’t decode, so the video plays in silence.
  • MP4, MOV, MKV and WebM are handled by your browser’s own video engine, often with hardware help. AVI, WMV, FLV, MPG and the other older formats use the FFmpeg engine, a one-time 31 MB download, and are slower.

Questions

Does converting WEBM to 3GP lose quality?

The video is re-encoded, so a little detail is lost, but the default quality is set high enough that it doesn’t show.

Will a 3GP play on my phone?

3GP a legacy format: old phones, VLC and some Android galleries; modern apps often refuse it. VLC plays 3GP files, and so do most Android phones.

Read more about this

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