Convert Opus to ALAC — Free Online Converter

Apple Lossless Audio Codec (ALAC) provides bit-perfect audio compression natively supported across every Apple device — Mac, iPhone, iPad, Apple TV, Apple Watch, and HomePod. Converting Opus recordings to ALAC creates a losslessly compressed archive that integrates with Apple Music, iCloud Music Library, and AirPlay without any third-party software. ALAC typically compresses to 50-60% of the equivalent uncompressed size while preserving identical PCM data upon decoding.

Opus, created by Xiph.org and the IETF, is the standard voice codec for Discord, Telegram, and WebRTC browsers. While Opus achieves remarkable quality at low bitrates, it is a lossy codec that Apple's native apps do not support. By converting to ALAC, you preserve the maximum possible quality from the Opus decode in a format that Apple's ecosystem handles natively everywhere.

Apple Music and iTunes only support ALAC for lossless audio — FLAC, despite being more universally available, requires third-party apps on iOS and macOS for playback. If you want to store decoded Opus recordings in the highest quality format that syncs across your Apple devices via iCloud, ALAC is the only option. The lossless compression means you can reconvert to any other format in the future without additional quality degradation.

ALAC is also the format Apple uses for its own Lossless tier on Apple Music, lending it credibility as a long-term archival format. For anyone maintaining an Apple-centric audio library, converting Opus recordings to ALAC before importing into Apple Music ensures they are treated as lossless content and benefit from iCloud syncing to all connected devices.