OPUS to M4R Converter — Free Online

Free online OPUS to M4R converter — quickly transform your audio files without registration or software installation. Our service lets you convert opus to m4r in just a few clicks. Upload your file to our server and get the result in seconds. Files are automatically deleted after download. M4R is the official iPhone ringtone format. Up to 40 seconds for a ringtone. Try our opus to m4r converter right now!

🔄 How OPUS to M4R Converter Works

M4R format requires a specialized codec. Our online converter uses server processing for perfect M4R quality.

Simply upload your OPUS file, configure bitrate and sample rate — the server handles the rest. Save your device resources.

Free OPUS to M4R conversion without registration. Powerful server processes your file in seconds and prepares it for download.

🎯 Problems This Converter Solves

Device can't play OPUS?

Some players don't support OPUS. Conversion will solve the problem.

Using Apple devices?

M4R works perfectly with iPhone, iPad and iTunes.

💡 Common Uses for M4R

📱 Create iPhone ringtone

🔔 Set as ringtone

💬 Notifications and alarms

✨ Our Converter Advantages

⚡ Speed Optimized

Optimized algorithms for lightning-fast processing

🎯 Best Quality

Maximum precision when converting to M4R

☁️ Cloud Conversion

Server processing guarantees compatibility

🔒 Complete Security

Your files are protected and auto-deleted after processing

🎛️ Full Control

Adjust audio quality to your needs

💰 Free Service

Convert as much as you want — it costs nothing

📊 Format Comparison

OPUS Compact format

Modern codec. Best for voice and streaming.

M4R Compact format

iPhone ringtone. AAC container up to 40 seconds.

❓ Frequently Asked Questions

How to convert OPUS to M4R?

Upload your OPUS file, select M4R as output format, and click Convert. Your file will be ready in seconds.

Is OPUS to M4R conversion free?

Yes, conversion is completely free. No registration required, no hidden fees.

Does converting OPUS to M4R affect quality?

When converting between lossy formats, we recommend using maximum bitrate to minimize quality loss.

Can I convert multiple OPUS files to M4R?

Server-side M4R conversion processes files one at a time for maximum quality. Upload the next file after downloading the result.

What's the maximum file size for conversion?

For server processing — up to 30 MB per file. Files are deleted immediately after download.

Where does M4R conversion happen?

M4R format requires specialized codecs, so conversion runs on our server. Files are automatically deleted after download.

📝 How to Convert OPUS to M4R

1

Upload File

Drag & drop OPUS files or click "Choose Files"

2

Adjust Settings

Choose quality, bitrate and other options

3

Convert

Click "Convert" and wait for processing

4

Download Result

Download your M4R files