Convert OPUS to AIFF online
Free, no sign-up, no limits. Drop your OPUS files, get AIFF files back in seconds.
1 files converted so far
Drop your OPUS files here
or · multiple files accepted
Local conversion: your files never leave your device.
Why convert OPUS to AIFF?
You received a WhatsApp, Telegram or Discord voice message (.opus/.ogg) and it will not open on your computer, car stereo or editing software. AIFF solves the problem.
How to do it, step by step
- Drop your OPUS fileinto the area at the top of the page (or several files at once). On mobile, tap the area and pick the file from your apps.
- Check the output format: AIFF is already selected. AIFF is a lossless format: there is no quality setting, the sound is reproduced identically. The file will be noticeably larger than a compressed format.
- Start the conversion.The FFmpeg engine loads once (≈ 10 MB), then each file is processed in a few seconds without leaving your device.
- Download your AIFF, directly or as a .zip if you converted several files. The name and metadata (title, artist, cover art) are preserved.
The OPUS format (Opus Interactive Audio Codec)
Opus is currently the most efficient audio codec: it delivers the best possible quality at very low bitrates. It is the format of WhatsApp, Telegram and Discord voice messages and of video calls. Excellent, but still poorly recognized by consumer players and car stereos.
- Exceptional quality at low bitrates
- Free format
- The standard for voice on the internet
- Very few devices play it
- Often impossible to open on Windows without extra software
The AIFF format (Audio Interchange File Format)
AIFF is Apple's equivalent of WAV: uncompressed audio, perfect quality, large files. It is produced by Logic Pro, GarageBand and iTunes (CD import as AIFF). Outside the Mac, it often causes playback problems.
- Lossless quality
- Supports metadata (unlike WAV)
- Very large
- Rarely played outside the Mac
OPUS vs AIFF comparison
| OPUS | AIFF | |
|---|---|---|
| Compression | Lossy | Lossless |
| Typical size (1 min, music) | ≈ 0.7 MB | ≈ 10 MB |
| Common use | WhatsApp/Telegram voice messages, Discord, calls | Logic Pro, GarageBand, mastering |
| Metadata (title, cover art) | Yes | Yes |
Frequently asked questions
Does converting OPUS to AIFF lose quality?
No: AIFF is a lossless format. The sound of the converted file is strictly identical to that of the original OPUS, but the quality already lost during OPUS compression is not recovered.
Is the OPUS to AIFF converter free?
Yes, with no limit on the number of files, no sign-up and no watermark. Each file can be up to 200 MB.
Are my OPUS files uploaded to the internet?
No. The OPUS to AIFF conversion is performed by FFmpeg directly in your browser (WebAssembly). Your files never leave your computer or phone.
How do I convert OPUS to AIFF on iPhone or Android?
Open this page in Safari or Chrome, tap the drop area, select your OPUS file (from Files, Voice Memos, Downloads or WhatsApp), then tap "Convert". The AIFF downloads to your files.
Can I convert several OPUS files at once?
Yes, add all your files in one go. They are converted one after another and a button lets you download everything as a .zip archive.