S3M to VOC Converter
Processing entirely on your device — large files may take a moment.
Convert VOC retro-game audio to WAV or MP3. If your files are still in S3M format, this page is the shortcut: S3M is the ScreamTracker 3 module format — the sound of DOS-era demoscene and shareware-game soundtracks.
iLoveConverter processes everything locally on your computer, which makes it private and fast: no upload wait, no server storage, no limits. Add as many files as you like — batch conversion is built in.
How S3M compares to VOC
| S3M | VOC | |
|---|---|---|
| Structure | S3M header + para-pointer patterns | Creative Voice file blocks (0x08 header) |
| Types / schema | Tracker module (PCM/FM hybrid) | 8-bit PCM / ADPCM variants |
| Compatibility | libopenmpt, ST3, ffmpeg | ffmpeg, Sound Blaster era tools |
| Best for | DOS game soundtrack conversion | Retro-game audio rescue |
How to convert S3M to VOC
- 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 VOC". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted VOC 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 VOC format
VOC is the Creative Sound Blaster format — if a DOS game made a sound between 1989 and 1994, it was probably a VOC: 8-bit samples at exotic sample rates, with loop points, silence blocks and hardware-specific appendices that made each card sing differently.
ffmpeg decodes the standard sample blocks and converts VOC to WAV or MP3 — the cheapest time machine for retro-game audio.
+ Strengths
- ✓The DOS gaming era's audio format
- ✓Unique features: loops, silence, transfer blocks
- ✓Simple to decode
! Limitations
- −8-bit/11kHz era fidelity
- −Creative hardware extensions lost on convert
- −Rarely produced after 1995
Why convert S3M to VOC?
Converting makes sense where the strengths of VOC meet what S3M cannot give you. The DOS gaming era's audio format 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 VOC 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 VOC?
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.
Are tags like title and artist preserved?
Tag handling varies between target formats and this conversion focuses on the audio itself. For archival copies where tags matter, keep the original file; the converted copy is for playback and sharing.