Convert Opus to AIFF — Free Online Converter

AIFF (Audio Interchange File Format) is Apple's uncompressed audio standard, storing raw PCM samples in a container developed by Apple in 1988 based on Electronic Arts' IFF format. Converting Opus audio — the modern codec behind Discord, WebRTC, and streaming platforms — to AIFF produces an uncompressed file ready for professional audio editing in Logic Pro, GarageBand, Pro Tools, and other DAWs on macOS.

Opus operates at 48 kHz internally with algorithmic complexity that rivals the best audio codecs ever created. When decoded to AIFF, the full PCM representation of the Opus audio is captured at CD quality (16-bit, 44.1 kHz) or higher (24-bit, 48 kHz), providing a lossless working copy for editing and mastering. The resulting AIFF file is significantly larger — approximately 10 MB per minute at CD quality — but integrates seamlessly with Apple's professional audio ecosystem.

Professional audio editors on macOS work fastest with uncompressed formats. Logic Pro, GarageBand, and Final Cut Pro load AIFF files instantly without any decoding overhead, and every edit, effect, and export from AIFF avoids the generational quality loss that comes from re-encoding compressed formats. If you recorded a podcast interview via Discord (which uses Opus internally) or captured audio from a WebRTC session, converting to AIFF before editing gives you the cleanest possible working copy.

AIFF is also the standard delivery format for sound effects libraries, broadcast audio, and sample packs in the Apple ecosystem. If your Opus recordings need to be integrated into a commercial project, delivered to a client, or archived in a professional audio library, AIFF is the expected format on macOS-based production houses.