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M4R Converter - Create Custom iPhone Ringtones

Create iPhone ringtones from MP3, M4A and more. Convert M4R to other formats.

Step 1: Upload your files

You can also Drag and drop files.

Step 2: Choose format
Step 3: Convert files

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What is M4R?

M4R is Apple's ringtone format for iPhone. Technically identical to M4A (AAC audio), M4R files have a different extension that tells iOS the file is a ringtone. iPhone ringtones are limited to 40 seconds maximum.

Creating custom ringtones requires converting your audio to M4R format and trimming to the correct length. Once created, M4R files sync to iPhone via iTunes or Finder.

Why Convert M4R Files?

Common reasons for M4R conversion:

  • Create custom ringtones - Convert any audio to iPhone ringtone
  • Extract ringtone audio - Convert M4R to MP3 for other uses
  • Cross-platform use - M4R only works on iPhone
  • Edit ringtones - Convert to WAV for editing, then back to M4R

Convert Audio to M4R (Make Ringtones)

MP3 to M4R

Convert any MP3 song to iPhone ringtone. Select your favorite 40-second section and create a custom ringtone.

M4A to M4R

iTunes music to ringtone. M4A and M4R are essentially the same format-this conversion changes the file extension and trims to ringtone length.

WAV to M4R

Convert uncompressed audio to ringtone format. Perfect for custom sound effects and recordings.

Convert M4R to Other Formats

M4R to MP3

Extract ringtone audio for use anywhere. MP3 works on all devices, not just iPhone.

M4R to WAV

Uncompressed audio for editing. Modify your ringtone in audio editors before converting back to M4R.

M4R to M4A

Simple extension change for use as regular audio file in iTunes and Apple Music.

M4R Requirements for iPhone

  • Maximum length: 40 seconds (30 seconds for text tones)
  • Format: AAC audio in M4R container
  • File extension: Must be .m4r
  • Sync method: iTunes, Finder, or GarageBand

How to Add Ringtones to iPhone

  1. Create or convert your M4R file (40 seconds max)
  2. Connect iPhone to computer
  3. Drag M4R file to iPhone in Finder (Mac) or iTunes (Windows)
  4. Find ringtone in Settings > Sounds > Ringtone

How to Convert M4R Files

  1. Upload your audio file - MP3, M4A, WAV, or M4R
  2. Choose M4R output - For iPhone ringtones
  3. Download and sync - Add to iPhone via iTunes/Finder

Works on Any Device

Create M4R ringtones in your browser:

  • Windows, Mac, Linux, Chromebook
  • Chrome, Firefox, Safari, Edge
  • iPhone, iPad, Android

Pro Tip

Choose a distinctive 10-20 second section of a song for your ringtone. Too long and you might miss calls; too short and it is hard to identify. The hook or chorus often works best.

Common Mistake

Creating ringtones longer than 40 seconds. iPhone will not accept ringtones over this limit. Always verify length before syncing.

Best For

Creating custom iPhone ringtones and text tones. Essential for personalizing your iPhone with unique sounds.

Not Recommended

M4R is iPhone-only. Do not use for Android devices or general audio playback. Convert to MP3 for cross-platform compatibility.

Frequently Asked Questions

M4R is Apple's ringtone format for iPhone. It is technically AAC audio (like M4A) but with a different file extension that identifies it as a ringtone.

iPhone ringtones can be up to 40 seconds. Text tones and alert sounds should be 30 seconds or less. Longer files may not sync properly.

Yes. Convert any audio file to M4R format, trim to 40 seconds or less, and sync to your iPhone. You can use songs, sound effects, or custom recordings.

Common issues: file is over 40 seconds, file extension is wrong, or sync failed. Ensure the file is properly named with .m4r extension and under 40 seconds.

Yes, the audio format is identical (AAC). The only difference is the file extension. M4R tells iOS the file is a ringtone.

Android does not use M4R format. Convert M4R to MP3 for Android ringtones. Android accepts MP3 and other common formats directly.

Use GarageBand on iPhone to create ringtones directly, or use third-party apps. On Mac with Catalina or later, use Finder instead of iTunes.

Yes. M4R to MP3 conversion extracts the audio for use anywhere. This is useful for using iPhone ringtones on other devices.

M4R Conversions & Related Converters

Quick access to the most commonly used file conversions.