Convert WEBM to 3GP

Tested on Windows 11, 24 October 2026

Convert WEBM video to 3GP in your browser or in the Filoshi app for Windows. The picture and sound are re-encoded with FFmpeg at a high-quality setting, and the original file is never changed. Nothing is uploaded.

Get Filoshi · $29Many files at once, no size limit, on Windows.

How to convert WEBM to 3GP in your browser

  1. 1
    Drop your WEBM file
    Drag it onto Filoshi above, or press Choose your WEBM file to pick it on your computer.
  2. 2
    Filoshi converts it
    3GP is chosen already. FFmpeg, compiled to WebAssembly, converts it inside this browser tab.
  3. 3
    Save your 3GP file
    Download it when it is ready. Nothing was sent to a server.
Source format

What is WEBM?

WebM Video (.webm). WebM is an open, royalty-free video format made for the web, started by Google in 2010. It uses VP8, VP9 or AV1 video with Vorbis or Opus sound, and every modern browser plays it.

Common use: Web video, HTML5 video, screen recordings in browsers

Output format

What is 3GP?

3GPP Multimedia (.3gp). 3GP is the video format defined for 3G mobile phones. Phones of the 2000s recorded small, low-resolution 3GP clips with H.263 or H.264 video and AMR or AAC sound, so many old phone videos are in this format.

Common use: Videos from older mobile phones

Questions about WEBM to 3GP

Is converting WEBM to 3GP free?
Yes, one file at a time: the converter on this page runs in your browser, files up to 200 MB, no sign-up. The Filoshi desktop app ($29 once, for Windows) converts many files at once and has no size limit.
Does converting WEBM to 3GP lose quality?
Yes, a little. 3GP is a lossy format, so some detail is thrown away when the file is saved. Filoshi re-encodes the video at a high-quality setting, so the difference is usually hard to see. WEBM is lossy too, so this is a second round of compression; convert from the original, not from earlier conversions.
Is my WEBM file uploaded anywhere?
No. The converter on this page runs in your browser with FFmpeg compiled to WebAssembly; your WEBM file is read and converted on your device and never sent to a server. The desktop app works the same way, offline.
Has WEBM to 3GP been tested?
Yes. WEBM to 3GP is one of the 1,841 conversions that passed Filoshi's automated test matrix on Windows 11.
Can I convert many WEBM files at once?
Yes, in the desktop app. Drop as many WEBM files as you like on the window, pick 3GP once for all of them, and each file shows its own progress. The new files appear next to the originals, which are never changed.

Related conversions

Other WEBM conversions

WEBM to MP4WEBM to MKVWEBM to MOVWEBM to AVIWEBM to FLVWEBM to TSWEBM to OGVWEBM to F4V

Convert to 3GP

MP4 to 3GPMKV to 3GPMOV to 3GPAVI to 3GPFLV to 3GPWMV to 3GPM4V to 3GPMPG to 3GP

Need WEBM to 3GP for many files?

The browser converter handles one file at a time. The Filoshi app for Windows converts as many as you drop, runs offline, and has 1,841 tested conversions.

Get Filoshi · $29