RM to MKV Converter
Convert RealMedia RM videos to MKV for organised media libraries, desktop players, and home media systems. Start free with no account.
Drop your RM files here
Up to 250MB per file.
Conversion Settings
Files are encrypted and auto-deleted after conversion
How to Convert
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Upload your RM files
Drag and drop or select RM files from your device. You can upload multiple files at once.
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Configure Output
Choose the video quality and keep the source dimensions or reduce the output size proportionally.
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Download MKV files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert RM to MKV?
RM is a RealMedia video format associated with RealPlayer, archived streaming media, and established online video collections. Converting it to MKV creates a flexible Matroska video container used for media libraries, desktop playback, and home entertainment, ready for workflows that use the destination format.
MKV plays in VLC, Plex, Kodi, many smart TVs, desktop media players, and home entertainment applications.
Frequently Asked Questions
Why convert RM to MKV?
RM is a RealMedia container used in established streaming collections, desktop archives, and older media libraries. MKV is a flexible container suited to organised media libraries, desktop players, and home media systems.
What does Crest Convert create from my RM file?
Crest Convert creates a standard MKV video with a widely compatible video stream and includes the first audio track when one is present.
Can I adjust the MKV quality?
Yes. Choose the visual quality before converting your RM file to balance detail and output size for your intended use.
Can I resize the converted MKV video?
Yes. Use the output size slider to retain the source dimensions or reduce the width and height proportionally while keeping the original shape.
Can I batch convert RM to MKV?
Yes. Add several RM videos, convert them together, and download each completed MKV file when it is ready.
How is my RM video processed?
Your RM file is transferred over an encrypted connection, converted securely to MKV, and automatically deleted shortly after processing. No account is required.