Convert RM to WEBM

Easily convert your RM files to WEBM format online.

Or drop files here

This free online tool lets you convert your files from RM to WEBM format quickly and easily. You can also batch convert RM to WEBM format by uploading multiple RM files above.

How to convert RM to WEBM?

  1. Drag and drop your RM files in the upload box above
  2. Click on the blue "Convert to WEBM" button to start conversion
  3. Once the conversion finishes, click the “Download” or “Download All” (Zip archive of all files) to download your WEBM files.

What file types are supported?

This RM to WEBM converter supports conversion of RM files such as .rm to WEBM video format. Max file size supported is: 1GB.

What is an RM (RealMedia) file?

RealMedia (RM) is a multimedia container format that is proprietary to RealNetworks. RealNetworks designed RM to stream content over the Internet. RM compresses video with a RealVideo codec and audio with a RealAudio codec.


How to open an RM file?

As a proprietary format, an RM file opens by default in RealPlayer, which RealNetworks developed. If RealPlayer is missing, then download it here.


Other programs that can open an RM file include VLC media player, MPlayer, and CrystalPlayer. For mobile, on Apple iOS, try OPlayer HD, and VLC media player for Android.


Developed by: RealNetworks

Initial release: 1997

Useful links:

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: