Convert AIFF to Opus Free

The catch with most "free" converters shows up at the end: the download needs an account, a watermark tone is mixed into the audio, or your file waits in a queue behind paying users. None of that applies here. The engine is the same one Pro uses — same speed, same bitrate options — and the output is clean and unmarked.

Free also means free of the usual hidden cost: your file. Many no-cost converters are free precisely because your upload is the product. Here the conversion runs in your browser, so the AIFF never leaves your device. Given that AIFF files usually come from Logic Pro and GarageBand bounces, old iTunes rips, and Mac sample libraries, that's worth more than the price.

The size drop is the point — around 20× less data, which is what turns an unsendable file into an attachment. Encoding straight from an uncompressed master means one lossy generation, not two — noticeably better than re-encoding from an already-compressed file.

Free covers input files up to 20MB file size limit with a 10-second preview output, and 5 conversions per month. Pro removes those limits for full-length conversions up to 500MB file size limit — and the privacy behaviour is identical, because there was never a server in the loop.

Where does a AIFF file even come from? Usually Logic Pro and GarageBand bounces, old iTunes rips, and Mac sample libraries. The catch is that AIFF is uncompressed like WAV, so a four-minute song is 40 MB+ and won't attach to an email. Opus is the destination because it plays essentially everywhere — Discord recordings and every ordinary phone, browser, and player. The size drop is the point — around 20× less data, which is what turns an unsendable file into an attachment. Because AIFF is uncompressed, encoding to Opus here is the clean, single-generation case — the encoder sees the whole original signal, so this Opus is as good as the format gets.