Online WEBM Converter

Easily convert your video files to WEBM format by uploading them below.

Drop your files here
Paste URL one at a time

Convert your video files files to WEBM format quickly and easily. You can also batch convert to WEBM format by uploading multiple files above. This service is 100% free and works on any browser (no software or wait times!)

How to convert video files to WEBM?

  1. Click on the "Choose Files" button and select the file(s) you want to convert to WEBM
  2. Click on the blue "Convert to WEBM" button to start conversion
  3. Once the files are converted (green bar) you can download the converted WEBM files individually or click “Download All” button to download all files in a ZIP archive format.

What file types are supported?

This conversion tool support conversion of VIDEO files such as .mp4, .m4p, .m4b, .m4v, .mkv, .avi, .wmv, .f4v, .f4p, .mov, .vob, .qt, .mpg, .mpeg, .mp1, .mp2, .m1v, .mpv, .3gp, .3gpp, .3g2, .rmvb, .mts, .m2ts, .xvid, .flv, .rm, .divx, .asf, .wma, .wtv, .dvr-ms, .ogv, .mp3, .wav, .wave, .flac, .m4a, .ogg, .oga, .swf to WEBM video format. Max file size supported is: . You can batch convert WEBM up to 20 files at a time.

What is a WEBM (WebM) file?

WebM (WEBM) is a freely-licensed file container designed for the Web. Specifically, it was designed to be compatible with HTML5, originally. It supports chapters, captions, subtitles, metadata tags, streaming, attachments, 3D codecs, 3D containers, and hardware players. WEBM compresses video streams with VP8 or VP9 codecs, and audio with Vorbis or Opus codecs.


How to open a WEBM file?

VLC media player and MPlayer can open WEBM files on any operating system (OS). Other good choices for opening WEBM include Winamp for Microsoft Windows OS, and Elmedia for Mac OS X.


Microsoft browsers do not have built-in WebM codecs. Therefore, install the codecs separately. However, most browsers support WEBM files.


Developed by: Google; CoreCodec, Inc.

Initial release: 2010

Useful links: