Convert Opus to ALAC
Convert OPUS files to ALAC format online for free. Fast, secure, and easy-to-use OPUS to ALAC converter with no software installation required.
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Max file size: 50 MBMax duration: 30 min
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Why Choose Scriptivox Opus to ALAC Converter?
Fast Conversion
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Your files are encrypted and automatically deleted after conversion. We never store or share your data.
No Installation
Works directly in your web browser. No software download or installation required.
How to Use Opus → ALAC
Upload File
Drag and drop your Opus file or click to browse. Supports files up to 1GB.
Convert
Select ALAC as your output format and click convert. Our servers will process your file instantly.
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Download your converted file instantly. The download link expires in 1 hour for security.
Opus vs ALAC: format comparison
How the two formats differ on the things that change your result.
| Specification | Opus (source) | ALAC (result) |
|---|---|---|
| Container | Ogg | MPEG-4 (.m4a) |
| Developed by | Xiph.Org / IETF | Apple |
| Introduced | 2012 | 2004 |
| Audio codecs | Opus | ALAC |
| Compression | Lossy | Lossless (compressed) |
| Max sample rate | 48 kHz | 192 kHz |
| Max channels | 255 | 8 |
| Gapless playback | Yes | Yes |
| Metadata / tags | Vorbis comments | MPEG-4 iTunes-style atoms |
| Approx. file size | 0.48–1.44 MB per minute | 5–7 MB per minute |
| Licensing | Royalty-free | Royalty-free |
| Plays natively on | Native: Web browsers, Android · Needs a player: Windows, macOS, iOS | Native: macOS, iOS · Needs a player: Windows, Android, Web browsers, Smart TVs |
| Best for | voice and calls, podcasts, web delivery | long-term archiving, the Apple ecosystem, audiophile listening |
What changes when you convert Opus to ALAC
Opus is already lossy, so converting to ALAC cannot restore detail that the original encoder discarded. What you gain is a format that survives further editing without stacking up more loss. Expect the file to grow from roughly 1 MB per minute to about 6 MB per minute, around 6.3 times larger.
Opus supports up to 255 channels, ALAC up to 8. Surround material is folded down rather than carried through untouched.
Compatibility is the main win here: ALAC plays natively on 2 more of the platforms we track than Opus does, so the result works without asking anyone to install a player.
The two formats are aimed at different jobs. Opus is typically used for voice and calls, podcasts, web delivery, while ALAC is the usual pick for long-term archiving, the Apple ecosystem, audiophile listening. That difference in intent is what most of the specification gaps above come from.
Expect metadata to be rewritten rather than copied: Vorbis comments in the source becomes MPEG-4 iTunes-style atoms in the result. Standard fields map cleanly; niche custom tags often do not.
About OPUS to ALAC Conversion
This page converts Opus files, stored in the Ogg container since 2012, into ALAC, which uses MPEG-4 (.m4a) and dates from 2004. The differences between the two containers decide what changes in the result.
Opus comes from Xiph.Org / IETF and dates to 2012. It carries Opus, which is what determines the quality ceiling of anything you convert out of it.
ALAC was introduced by Apple in 2004. It carries ALAC and has native playback on 2 of six platform categories, which is the practical reason to choose it as a target.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
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