WEBM Converter

Convert to WEBM format online, for free.



Choose Files
  • From Device
  • From Dropbox
  • From Google Drive
  • From Url
Choose Files
Max file size 1GB. Upgrade to Pro Sign Up for more
Video Options
Choose a codec to encode or compress the video stream. To use the most common codec, select "Auto" (recommended). To convert without re-encoding video, choose "Copy" (not recommended).
Select a resolution for your video (width x height) in pixels.
Change the ratio between width and height, for example, 4:3 or 3:2
Change FPS (frames per second) of video
Video will be rotated clockwise.
Choose a file Browse
Upload a .srt or .ass subtitle file to be burned into your video.
Audio Options
Choose a codec to encode or compress the audio stream. To use the most common codec, select "Auto" (recommended). To convert without re-encoding audio, choose "Copy" (not recommended).
100% represents the original volume. To double the volume, increase it to 200%. To reduce volume by half, select 50%
Trim Settings
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Specify the start position of trim (HH:MM:SS). Leave at 00:00:00 to disable.
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Specify the end position of trim (HH:MM:SS). Leave at 00:00:00 to disable.



How to Convert to WEBM?

  1. Click the “Choose Files” button to select your files.
  2. Convert to WEBM by clicking the "Convert" button
  3. Once the conversion finishes, click the "Download WEBM" button to save the file.

Convert Any File

FreeConvert supports 500+ file formats. Simply upload your files and convert them to WEBM format. Alternatively, you can upload WEBM files and convert them to a different format. All from the convenience of one tool!

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional).

Free & Secure

Our WEBM converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically delete after a few hours.


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:

https://en.wikipedia.org/wiki/WebM

https://tools.google.com/dlpage/webmmf/

FreeConvert.com can convert your files to these related formats:


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