RM to M4A Converter

Convert RM files to M4A free in your browser — no signup, no install, and the file is never uploaded to a server. M4A opens almost anywhere, so the result works where RM did not.

Completely free Files are never uploaded No signup required
Drop files or click to select
RM → M4A

What changes in this conversion

  • M4A opens almost everywhere, so the converted file will work on devices and programs that refused the original RM.
  • Only the audio track is kept — the video picture is discarded, so the result is far smaller than the original RM file.

How to use

  1. Add your RM file

    Drag the RM file onto the drop area above, or click it to pick a file from your device. You can add several files at once.

  2. Confirm M4A as the output

    M4A is already selected as the output format on this page. You can pick the bitrate — higher keeps more of the sound, lower makes a smaller file.

  3. Run the conversion

    Press the convert button. Video is re-encoded frame by frame on your own machine, so a long clip can take several minutes. The tab has to stay open.

  4. Download the M4A file

    When it finishes, download the M4A file. Converting multiple files gives you the option to download them together as a ZIP.

About these formats

RM RealMedia

RealNetworks' streaming video format, with almost no playback options remaining today.

Commonly used for Legacy internet broadcast archives

RM File format reference

M4A M4A Audio

An audio file in an MPEG-4 container, usually compressed with AAC. iPhone voice memos and iTunes purchases use this format.

Commonly used for iPhone voice memos, Apple ecosystem audio

M4A File format reference

Frequently asked questions

Is converting RM to M4A really free?

Yes. RM to M4A conversion is completely free with no signup, no watermark, and no daily limit on the free plan for ordinary use.

Are my RM files uploaded to a server?

No. The conversion runs entirely inside your browser using WebAssembly, so the RM file never leaves your device. That is also why it works without an internet connection once the page has loaded.

Does the picture disappear when I convert RM to M4A?

Yes — M4A is an audio format, so only the soundtrack is extracted. The video track is dropped, which is usually the point when you want just the audio.

Is there a file size limit for RM to M4A conversion?

The free plan handles files up to 200MB. Because processing happens on your own device, very large files depend on your computer's memory rather than a server quota.

Convert RM files to other formats

RM AAC RM AVI RM FLAC RM GIF RM MKV RM MOV RM MP3 RM MP4 RM OGG RM OPUS RM WAV RM WEBM

Convert other formats to M4A

3G2 M4A 3GP M4A AAC M4A AC3 M4A AIF M4A AIFF M4A ALAC M4A AMR M4A ASF M4A AU M4A AVI M4A DIVX M4A

Video converter

What each file format is, what it is used for, and which formats it can be converted to.

Open converter Browse the full format reference