S3M to WV Converter
Processing entirely on your device — large files may take a moment.
ScreamTracker 3 Module and WavPack exist for different jobs: S3M is the ScreamTracker 3 module format — the sound of DOS-era demoscene and shareware-game soundtracks. Convert WV albums to FLAC for maximum compatibility.
This converter runs entirely in your browser using WebAssembly — your files never leave your device, nothing is uploaded, and there are no watermarks, sign-ups or queues. Drop in several files at once to convert them as a batch.
How S3M compares to WV
| S3M | WV | |
|---|---|---|
| Structure | S3M header + para-pointer patterns | wvpk frame blocks |
| Types / schema | Tracker module (PCM/FM hybrid) | Lossless/hybrid, up to 32-bit |
| Compatibility | libopenmpt, ST3, ffmpeg | ffmpeg, WavPack CLI, fb2k |
| Best for | DOS game soundtrack conversion | Flexible archiving workflows |
How to convert S3M to WV
- 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 WV". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted WV 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 WV format
WavPack's signature trick is the hybrid mode: encode once into a small lossy .wv plus a tiny .wvc correction file — together they are bit-exact lossless, apart the small file plays like a high-quality MP3. It also offers pure lossless and pure lossy modes in the same container.
Full WavPack files decode losslessly through ffmpeg into FLAC or WAV; hybrid correction files are handled by the original encoder only, so a .wvc alone cannot be restored.
+Strengths
- ✓Unique hybrid lossy+correction mode
- ✓Fast decode, open source
- ✓Error-robust streaming modes
!Limitations
- −Ratios slightly behind APE
- −.wvc correction files are orphaned here
- −Hardware support rare
Why convert S3M to WV?
There is a concrete reason this conversion exists: Pattern limits of 1994 WV sidesteps that — Unique hybrid lossy+correction mode If that is your situation, the tool above settles it in seconds, entirely on your device.
Frequently asked questions
Is this S3M to WV 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 WV?
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 WV reduce audio quality?
If WV is lossless, the output contains everything the S3M file contains — no further loss is added. If WV 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.