OPUS to ALAC Converter

Convert OPUS to ALAC online, for free.



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Auto
Sets how the audio is encoded. "Auto" suits most conversions. "Copy" reuses the audio as-is, so it is fast and keeps full quality, but only when the output format supports it.
100% represents the original volume. To double the volume, increase it to 200%. To reduce volume by half, select 50%
Fades the audio in at the start of the output.
Fades the audio out at the end of the output.
Enable if you want to reverse audio stream
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Specify the end position of trim (HH:MM:SS.MS). Leave at 00:00:00.00 to disable.


How to Convert OPUS to ALAC?

  1. Click the “Choose Files” button to select your OPUS files.
  2. Click the “Convert to ALAC” button to start the conversion.
  3. When the status change to “Done” click the “Download ALAC” button

Easy to Use

Simply upload your OPUS files and click the convert button. You can also batch convert OPUS to ALAC format.

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).

Free & Secure

Our OPUS to ALAC Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 8 hours.


Opus is an open, royalty-free lossy audio codec standardised by the IETF as RFC 6716. It was designed to cover everything from low-bitrate speech to full-quality stereo music in a single codec, and it consistently outperforms MP3 and AAC at the same bitrate. Opus powers voice and audio in WhatsApp, Discord, Zoom, YouTube, and every WebRTC browser call, which makes it one of the most widely used audio codecs in the world.

 

How to open an Opus file?

Every major web browser plays Opus natively, so dragging the file into a browser tab works. On the desktop, VLC media player and foobar2000 both support it out of the box.

 

Android plays Opus natively, and FFmpeg handles conversion from the command line. Some older hardware players, car stereos, and editing programs still do not recognise the format — in that case convert it with our Opus to MP3 tool. You can also convert the file with our OPUS to MP3 tool.

 

Developed by: Xiph.Org Foundation, Mozilla, and Skype

Initial Release: 2012


Apple Lossless Audio Codec (ALAC) is Apple’s lossless audio format, stored inside an M4A container. It compresses a recording to roughly half its original size while preserving every sample, so decoding returns audio identical to the source CD or WAV. ALAC is the natural choice for lossless libraries in the Apple ecosystem, and Apple released it as open-source in 2011, which broadened support well beyond its own devices.

 

How to open an ALAC file?

On Apple devices, ALAC plays directly in the Music app, iTunes, or QuickTime with no setup at all.

 

Elsewhere, VLC media player, foobar2000, and Android all read ALAC. Since ALAC files carry the .m4a extension, they look identical to lossy AAC files in a file listing — check the track properties to tell them apart. To free up space or play the music on limited hardware, convert it with our M4A to MP3 tool.

 

Developed by: Apple Inc.

Initial Release: 2004


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