Yes, we automatically delete files after 24 hours and use encrypted file transfers.

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OPUS to M4R Converter

Q: Will my formatting be preserved?

Yes, the layout, fonts, and images are preserved as much as possible in the converted DOCX.

Convert your opus files to m4r (iphone ringtone file) online & free

Drag & Drop or Choose a file

Chose OPUS file

To
Drop file here. 150 MB maximum file size.

No sign-up required. Your files are deleted automatically after 24 hours.

Convert to M4R

What did you think of your recent OPUS conversion? 4.9 (161 Votes)

Convert Other OPUS File

How to Convert PDF to DOCX

Click the "Choose OPUS File" button and select your OPUS.
Click “Convert to M4R”.
Wait a few seconds while we convert your file.
Download the resulting M4R file instantly.

What is OPUS?

An Opus file is an audio file created in Opus format (also known as " Ogg Opus &") that is an audio format with loss developed for Internet streaming. It uses both SILK (used by Skype) and CELT (from Xiph.Org) codecs and supports variable bit rates from 6 kb/s to 510 kb/s.

Read everything about OPUS file type.

What is M4R?

A M4R file contains a custom iPhone ringtone created with iTunes d' Apple, a multimedia player supplied with Apple devices. It can only be created from a song purchased from the iTunes music store that allows the creation of ringtones. M4R files are transferred automatically to an iPhone when the phone is synchronized with the phone; computer at l' aide d' iTunes d' Apple.

Read everything about M4R file type.

More Free Online OPUS Tools

We have 100% free online OPUS tools that does not required any registrations and installations on your system, here are few popular free OPUS tools to View, Convert, Edit, Merge, Split, Compare and manage file metadata online from any device with a modern browser like Chrome, Opera and Firefox.

OPUS Converter

Open OPUS

Edit OPUS

Compare OPUS Files

Merge OPUS Files

Split OPUS Files

OPUS Metadata Viewer

Frequently Asked Questions

❓ How can I convert OPUS to M4R?

Chose or drag & drop your OPUS file, click Convert to M4R, and download the M4R file. No registration needed.

🔐 Are my files secure?

Yes, all uploads are encrypted. Your files are auto-deleted after 24 hours.

📝 Will my formatting be preserved?

Yes, our converter retains layout, fonts, and images as accurately as possible.

⏱️ How long does it take to convert OPUS to M4R?

Fileproinfo converter engine works fast. You can convert OPUS to M4R in a few seconds to couple of minutes for large size files with complex structure.

Convert from OPUS

FileProInfo support manay file formats that allow you to convert OPUS to 100s of file formats, without any limit, registration and downloading, 100% free and online OPUS converter.

OPUS to MP3 OPUS to WAV OPUS to AAC OPUS to M4A OPUS to WMA OPUS to FLAC OPUS to OGG OPUS to AIFF OPUS to MP2 OPUS to AC3

Viw All OPUS Converter

Other recommended free online opus to m4r file converter

All converters in this list are manually verified & 100% free and working properly, however you must use these apps according to their respective terms & conditions.

#	Tools	License	Developer
1	OPUS to M4R converter	Free	JeDok.com
1	OPUS to M4R converter	Free	Docpose.com

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This tool and page updated at: 12-Apr-2025

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