OPUS to AIFF Converter

Convert OPUS to AIFF Online

OPUS is the compact voice-note codec behind WhatsApp, Discord, and Telegram, but most audio editors and hardware samplers won't open a .opus file. Converting to AIFF — Apple's uncompressed PCM format — gives Logic Pro, GarageBand, Pro Tools, and Final Cut Pro a file they can import natively. One honest caveat up front: OPUS is lossy, so decoding it into AIFF does not restore detail that was discarded during compression. The AIFF will sound identical to the OPUS, just in a wrapper your tools accept — and it will be much larger.

How to Convert OPUS to AIFF

1. Upload Your OPUS File: Drag and drop your .opus file onto the page or click "+ Add Files" to browse. You can queue several files and convert them with the same settings.
2. Set the Audio Sample Rate: Leave it on "Original" to keep the source rate, or choose a target like 44.1 kHz or 48 kHz to match your project session.
3. Set Audio Channel and Trim (Optional): Keep "Original" channels, force Mono or Stereo, or use Trim to export only the start and duration you need from a long voice note.
4. Convert and Download: Click "Convert" and download your AIFF. No sign-up, no watermark.

OPUS vs AIFF at a Glance

For a non-Apple uncompressed result use OPUS to WAV; to keep files small and shareable instead use OPUS to MP3. Going the other direction to shrink an AIFF? See AIFF to OPUS.

Frequently Asked Questions

Will converting OPUS to AIFF improve the audio quality?

No. OPUS is a lossy codec, so any detail discarded when the file was first encoded is already gone and cannot be recovered. AIFF stores the decoded audio as uncompressed PCM, which preserves exactly what the OPUS contained — nothing is added or restored. You move to AIFF for compatibility and to avoid further generation loss while editing, not to regain fidelity.

Why is the AIFF file so much larger than the OPUS?

Because AIFF is uncompressed. OPUS packs a minute of stereo audio into roughly half a megabyte to a megabyte; the same minute as 44.1 kHz / 16-bit AIFF is about 10 MB, since every sample is stored in full with no compression. The size jump is expected and is the trade-off for an edit-friendly, lossless container.

Which programs can open the AIFF this produces?

AIFF is the native uncompressed format on macOS, so Logic Pro, GarageBand, Final Cut Pro, QuickTime, and the Music app open it directly. Pro Tools, Audacity, and most other DAWs on both macOS and Windows also import AIFF without a plugin — which is the main reason to convert away from .opus, since few editors read OPUS at all.

Should I pick AIFF or WAV for my project?

Both are uncompressed PCM and carry identical audio quality; the difference is byte order and ecosystem. AIFF is big-endian and the traditional choice on Apple platforms, while WAV is little-endian and the de facto standard on Windows. If you work in Logic Pro or Final Cut, AIFF fits cleanly; if your session or collaborators are Windows-based, use OPUS to WAV instead.

Can I convert a long OPUS voice note and keep only part of it?

Yes. Expand the options and use the Trim control to set a start point and a duration, so the exported AIFF contains just the segment you want — useful for pulling a single quote or take out of a long recorded message before dropping it into an editor.

What sample rate and channel settings should I use?

Leave Audio Sample Rate and Audio Channel on "Original" to copy the source exactly. In our testing, WhatsApp and Discord voice notes are typically mono at 48 kHz; if your DAW session runs at 44.1 kHz you can set that rate here so the AIFF drops in without a resample prompt, and you can force Stereo if the project expects two channels.

What happens to my files after I convert them?

Your file is uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion. There is no sign-up, no watermark, and your files are never shared or made public.