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Process M4R to WebM

Process Your M4R to WebM documents simply

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Drop your files here for web-optimized processing

*Files deleted after 24 hours

Process files free, Pro users can convert much larger files; Sign up now


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How to convert a M4R to WebM file online

To convert a M4R to webm, drag and drop or click our upload area to upload the file

Our tool will automatically convert your M4R to WebM file

Then you click the download link to the file to save the WebM to your computer

M4R to WebM Processing FAQ

How do I convert M4R to WebM?
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Converting M4R to WebM wraps your M4R audio inside a WebM video container, usually with a static or waveform image as the picture track. This is how you turn a song or podcast into a file that uploads to video-only platforms.
You move your content from the M4R format into WebM so it works in the apps, devices or workflows that prefer WebM.
The output WebM is encoded at a quality you control. Animated and wrapped formats trade some fidelity for small file size; raise the bitrate or resolution if the WebM needs to look pristine.
Short clips finish in seconds. Longer M4R videos run at roughly real-time or faster on our GPU encoders, so a half-hour recording typically lands in a few minutes.
Pick WebM when your target app or device requires it; otherwise choose the most widely-supported option in that format family.
Yes. Single-file M4R to WebM conversion is free with no signup. A Pro plan unlocks very large files, unlimited batch jobs and advanced features, but everyday conversions cost nothing.
Free users can upload M4R files up to 100 MB — enough for most audio files. Pro users go up to several GB per file and can queue large batches.
Yes. Drop multiple M4R files in one go and WEBM.to converts them to WebM in parallel. Free accounts handle a couple at a time; Pro accounts have unlimited batch conversion.
No. The M4R to WebM conversion runs entirely server-side in your browser — no Photoshop, Office, ffmpeg or any local install. Upload, convert, download.
Yes. WEBM.to runs in any modern mobile browser, so iPhone, iPad and Android users can convert M4R to WebM without an app. The WebM result downloads straight to your device.
Yes. Your M4R upload and the WebM output travel over HTTPS, are never read by a human, and are deleted automatically from our servers shortly after the job finishes. No watermarks, no resale of your data.
No account is required for basic M4R to WebM conversions — you can convert immediately. A free account adds conversion history; a Pro plan adds large files, batch jobs and AI tools.

file-document Created with Sketch Beta.

M4R is a file format used for iPhone ringtones. It is essentially an AAC audio file with a different extension.

file-document Created with Sketch Beta.

WebM is designed for the web, offering royalty-free video streaming with VP8/VP9 codecs.

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