Convert AIFF to MP3
Convert any audio file to MP3 format online for free. Fast, secure, and easy-to-use audio to MP3 converter with no software installation required.
Drag & Drop Audio File
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Supported formats (Max 50MB, 30 min • Sign in for 200MB, 1 hr)
Why Choose Scriptivox AIFF to MP3 Converter?
Fast Conversion
Our powerful servers process your files quickly, delivering converted files in seconds.
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Convert your files completely free with no hidden costs or subscription fees.
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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 AIFF → MP3
Upload File
Drag and drop your AIFF file or click to browse. Supports files up to 1GB.
Convert
Select MP3 as your output format and click convert. Our servers will process your file instantly.
Download
Download your converted file instantly. The download link expires in 1 hour for security.
AIFF vs MP3: format comparison
How the two formats differ on the things that change your result.
| Specification | AIFF (source) | MP3 (result) |
|---|---|---|
| Container | IFF / AIFF | MPEG-1/2 Audio Layer III |
| Developed by | Apple | Fraunhofer IIS / MPEG |
| Introduced | 1988 | 1993 |
| Audio codecs | PCM | MP3 |
| Compression | Uncompressed | Lossy |
| Max sample rate | 192 kHz | 48 kHz |
| Max channels | 8 | 2 |
| Gapless playback | Yes | Partial |
| Metadata / tags | ID3 chunk (limited) | ID3v2 |
| Approx. file size | 10–32 MB per minute | 0.96–2.4 MB per minute |
| Licensing | Royalty-free | Patents expired |
| Plays natively on | Native: macOS, iOS · Needs a player: Windows, Android, Web browsers | Native: Web browsers, Windows, macOS, iOS, Android, Smart TVs |
| Best for | studio editing, the Apple ecosystem, mastering | music libraries, podcasts, sharing with anyone |
What changes when you convert AIFF to MP3
This is the step where quality is actually decided. AIFF holds the full signal; MP3 throws away part of it to shrink the file, so pick the bitrate deliberately. Between 128 and 320 kbps covers most listening, and the file drops from around 21 MB per minute to roughly 1.7 MB per minute.
If your source runs above 48 kHz, it will be resampled: MP3 cannot store the 192 kHz that AIFF allows.
AIFF supports up to 8 channels, MP3 up to 2. Surround material is folded down rather than carried through untouched.
Compatibility is the main win here: MP3 plays natively on 4 more of the platforms we track than AIFF does, so the result works without asking anyone to install a player.
The two formats are aimed at different jobs. AIFF is typically used for studio editing, the Apple ecosystem, mastering, while MP3 is the usual pick for music libraries, podcasts, sharing with anyone. That difference in intent is what most of the specification gaps above come from.
About AIFF to MP3 Conversion
This page converts AIFF files, stored in the IFF / AIFF container since 1988, into MP3, which uses MPEG-1/2 Audio Layer III and dates from 1993. The differences between the two containers decide what changes in the result.
AIFF comes from Apple and dates to 1988. It carries PCM, which is what determines the quality ceiling of anything you convert out of it.
MP3 was introduced by Fraunhofer IIS / MPEG in 1993. It carries MP3 and has native playback on 6 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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