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OPUS to M4R Converter
Convert OPUS files to M4R in seconds, free and unlimited.
🔒 Files are processed on your device. Nothing is uploaded.
How to convert OPUS to M4R
- Click Choose files or drop your OPUS files into the box. You can add several at once.
- Make sure M4R is selected as the output format.
- Press Convert, then download your M4R files.
OPUS
Modern open codec with the best quality at low bitrates. Used by WhatsApp, Discord and YouTube.
M4R
iPhone ringtone format (AAC audio in an MPEG-4 container).
Video and audio are converted with FFmpeg running inside your browser. Short clips finish in seconds; long or high-resolution videos can take a few minutes because your own device does the work. Open Options to trim, resize or change quality.
Other OPUS conversions
- OPUS to MP3
- OPUS to WAV
- OPUS to OGG
- OPUS to FLAC
- OPUS to AAC
- OPUS to M4A
- OPUS to WMA
- OPUS to AC3
- OPUS to AIFF
Convert other files to M4R
- MP4 to M4R
- WEBM to M4R
- MKV to M4R
- MOV to M4R
- AVI to M4R
- FLV to M4R
- WMV to M4R
- MPEG to M4R
- MPG to M4R
- M4V to M4R
- 3GP to M4R
- 3GPP to M4R
- 3G2 to M4R
- OGV to M4R
- TS to M4R
- MTS to M4R
- M2TS to M4R
- VOB to M4R
- MXF to M4R
- DV to M4R
- MOD to M4R
- RM to M4R
- RMVB to M4R
- MP3 to M4R
- WAV to M4R
- OGG to M4R
- OGA to M4R
- FLAC to M4R
- AAC to M4R
- M4A to M4R
- M4B to M4R
- WMA to M4R
- AC3 to M4R
- AIFF to M4R
- AIF to M4R
- AIFC to M4R
- AMR to M4R
- AU to M4R
- CAF to M4R
- VOC to M4R
- WEBA to M4R
FAQ
Is converting OPUS to M4R free?
Yes. Unlimited conversions, no sign-up, no watermark.
Are my files uploaded to a server?
No. FieldConvert processes files inside your browser, so your OPUS files never leave your device. That makes it private and fast, because there is no upload or download wait.
Is there a file size limit?
Only your device's memory. Files up to about 2 GB work in most desktop browsers.