S3M to AIFF Converter
Processing entirely on your device — large files may take a moment.
ScreamTracker 3 Module and Audio Interchange File Format exist for different jobs: S3M is the ScreamTracker 3 module format — the sound of DOS-era demoscene and shareware-game soundtracks. AIFF imports cleanly into Logic Pro and older Mac audio tooling.
Because the whole conversion happens on your device, it is instant, unlimited and genuinely private — no accounts, no watermarks, no files on anyone's server. Multiple files are converted in one go.
How S3M compares to AIFF
| S3M | AIFF | |
|---|---|---|
| Compatibility | libopenmpt, ST3, ffmpeg | Mac-first |
| Best for | DOS game soundtrack conversion | Mac recording and production |
How to convert S3M to AIFF
- 1
Select your files
Drag & drop your S3M files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to AIFF". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted AIFF file individually, or grab everything at once as a ZIP archive.
About the S3M format
S3M is ScreamTracker 3's module format — the 1994 standard that carried PC demo music past the AdLib's FM chip into sampled instruments, with PCM samples, FM instruments or both in one file. Half the classic DOS game soundtracks you remember were S3Ms.
Conversion renders the module through the tracker engine to MP3 or WAV — the FM-vs-sample mix is resolved exactly the way the composer intended, frozen into a universally playable waveform.
+ Strengths
- ✓FM + PCM hybrid instruments
- ✓Iconic DOS-era game soundtracks
- ✓Well-specified, stable format
! Limitations
- −Pattern limits of 1994
- −FM playback differs across engines
- −Adlib-specific quirks may differ
About the AIFF format
AIFF is Apple's counterpart to WAV: uncompressed PCM in an IFF container, born with the classic Mac in 1988. It stores the same bit-perfect audio as WAV but carries metadata far better — iTunes-era tags, cover art and loop points all fit natively, which made it the default of Logic Pro and Mac-based audio production.
Functionally the WAV-versus-AIFF choice is platform history: same quality, same sizes, AIFF friendlier on Mac, WAV friendlier everywhere else. Converting between them is a lossless retagging exercise, nothing more.
+ Strengths
- ✓Bit-perfect uncompressed audio
- ✓Better metadata support than WAV
- ✓Native to macOS and Logic Pro
! Limitations
- −Same bulk as WAV (~10 MB/minute)
- −Windows tooling historically prefers WAV
Why convert S3M to AIFF?
Converting makes sense where the strengths of AIFF meet what S3M cannot give you. Bit-perfect uncompressed audio Meanwhile Pattern limits of 1994 One pass through the converter above puts your file on the right side of that trade-off.
Frequently asked questions
Is this S3M to AIFF converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Is there a file size limit for S3M to AIFF?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.
Can I convert a whole folder of S3M files?
You can select many files at once and they are processed in a single batch. Output files land in one ZIP download when there is more than one result.
Will converting S3M to AIFF reduce audio quality?
If AIFF is lossless, the output contains everything the S3M file contains — no further loss is added. If AIFF is lossy, one recompression pass is unavoidable; the quality slider controls how much. Loss that already happened in the source file can never be undone by converting.