Turn OGG files into AIFF
This makes an AIFF out of the OGG you already have. AIFF is the usual choice for professional recording and mastering on macOS. Worth knowing: an AIFF will not open in a browser tab, so it is a file for software rather than for the web. Your file never leaves your computer.
Need the other direction? Convert AIFF to OGG
How to convert OGG to AIFF
- 1 Drop your OGG .ogg or .oga file onto the page, or click to browse for it.
- 2 Check the options. Nothing is thrown away on the way to AIFF, so there is no quality dial to set.
- 3 Convert. The work happens on your own machine, so how long it takes depends on your computer and the file.
- 4 Download the AIFF, or add more files and do the whole set in one go.
Why convert OGG to AIFF
- You want a copy that will not get any worse each time you edit and save it, and AIFF gives you that.
- Exactly as recorded, identical in quality to a WAV.
- Holds track details better than a plain WAV.
- Professional recording and mastering on macOS.
- OGG: less consistent support in consumer devices.
OGG compared with AIFF
How the two formats differ on the things that decide whether a conversion is worth making.
| Property | OGG | AIFF |
|---|---|---|
| File extension | .ogg | .aiff |
| Compression | Lossy | Uncompressed |
| Typical file size | Smaller | Largest |
| Browser support | All current browsers | Some browsers |
| Introduced | 2000 | 1988 |
| Developed by | Xiph.Org Foundation | Apple |
Quality and what changes
AIFF stores every pixel exactly, but it can only preserve what the OGG already contained. The compression artefacts baked into the source are preserved perfectly along with everything else, so the picture does not improve, it just stops degrading. Expect the file to grow substantially, often several times over, because OGG was discarding data that AIFF now has to write out in full.
- Browsers will not display an AIFF, so it downloads rather than opening in a tab.
- One AIFF limitation to keep in mind: less universally supported on Windows and web.
Questions about OGG to AIFF
Does converting OGG to AIFF improve the quality?
No. AIFF preserves what it is given perfectly, including the compression artefacts already present in the OGG. It stops further loss from happening, which is worth doing before editing, but it cannot recover detail that was discarded.
Why is my AIFF bigger than the OGG?
Because OGG was discarding data and AIFF is not. A lossless format has to write out every pixel it is handed, artefacts included, so growing several times over is normal and does not mean anything went wrong.
Is my OGG file uploaded anywhere?
No. The whole thing runs inside the browser tab you already have open. Your OGG is read straight from your own disk, converted on your machine and handed back as an AIFF. Nothing is sent anywhere, nothing is stored and there is no account.
Is there a file size limit?
There is no server-side limit because no server sees the file. The real ceiling is your device memory, since the input and the output both have to fit in the tab. A few hundred megabytes is usually fine on a desktop machine and considerably less on a phone.
Can I convert several OGG files at once?
Yes. Add as many as you like and they are processed one after another, then offered as separate AIFF downloads or as a single ZIP. Speed depends on your own processor rather than on a queue.
Does the converter work offline?
Yes, after the page has loaded once. The engine is cached by the browser, so you can disconnect, reload and keep converting. That falls out of doing the work locally rather than being a separate mode you switch on.