AIFF to OPUS converter
Convert AIFF to OPUS in seconds, free and unlimited. No upload, no sign-up, no watermark: your audio never leaves your device. Re-encodes the audio into OPUS.
Last updated
Quick answer: To convert AIFF to OPUS, add the AIFF file to the iHateFiles AIFF to OPUS converter and press Convert. The conversion runs in your browser, so the file is never uploaded, and it is free with no sign-up, watermark or size limit. Re-encodes the audio into OPUS.
Should you convert AIFF to OPUS?
Do this to make a lossless recording small enough to share or carry around. Keep the AIFF as the master copy.
AIFF is lossless and OPUS is not
This is the conversion lossy formats were designed for: from about 10 MB per minute to 0.25 to 1 MB. At 192 kbps or more almost nobody can hear the difference in music. Keep the AIFF as your master if you might need to convert again.
Where the OPUS will play
OPUS plays on browsers, Android, WhatsApp and Discord, but not many car stereos or older players.
AIFF and OPUS side by side
| AIFF | OPUS | |
|---|---|---|
| Inside the file | uncompressed big-endian PCM | Opus |
| Compression | Lossless | Lossy |
| Carries sound | Yes | Yes |
| One minute of stereo | about 10 MB | 0.25 to 1 MB |
| Plays on | Macs, Logic, GarageBand and most DAWs | browsers, Android, WhatsApp and Discord, but not many car stereos or older players |
| Here | Read and write | Read and write |
What usually goes wrong
About the AIFF. AIFF and WAV are the same audio at the same size; only the byte order and metadata differ. Converting between them changes nothing you can hear.
About the OPUS. Opus at 64 kbps sounds better than MP3 at 128, so the bitrate you are used to is roughly double what you need here.
How to convert AIFF to OPUS
- Add your AIFF file. It is read from your disk and stays there.
- Check the settings. The output format is already set to OPUS.
- Press convert and the OPUS file is saved back to your device.
Questions
How do I convert AIFF to OPUS?
Open this page, add your AIFF file, and press convert. The file is decoded and re-encoded by your own browser and saved back to your device. Nothing is uploaded.
Is this AIFF to OPUS converter free?
Yes, completely. There is no account, no sign-in, no watermark and no daily limit, because there is no server doing the work. Your own device does it.
Are my files uploaded anywhere?
No. There is no upload endpoint. The conversion runs inside this browser tab, so your file never leaves your device. You can open your browser's network panel and watch: nothing carrying your file is sent.
Is there a file size limit?
No fixed limit. Because the work happens on your machine there is no server quota. The only ceiling is your own device's memory, which for video means very large files may be slow.
Will converting to OPUS lose quality?
OPUS is a lossy format, so some detail is discarded. The quality control on this page decides how much. The default is set high enough that most people cannot see the difference.
Can I convert several AIFF files at once?
Yes. Add as many as you like and they are converted one after another, then offered as a single ZIP.