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STS S3M
File conversion

Convert STS to S3M

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Is it possible to convert STS to S3M?
Yes - STS converts to S3M.

OpenMPT and Schism Tracker can open STS and save as S3M (ScreamTracker 3), the successor format with more channels and samples.

Also to S3M: PTM

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert STS to S3M

Converting a .STS file to .S3M lets you open the content in software that prefers the .S3M format, though some details may change compared with the original. We are still putting together the list of programs that handle .STS files.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

About these formats

.STS ScreamTracker 2 Song Module

An STS file is a ScreamTracker 2 song module, a DOS-era tracker music format from 1990-1992 created by Future Crew. To open it today, use OpenMPT (Windows, free) or Schism Tracker…

Open .STS details →
.S3M Scream Tracker v3 module

A .S3M file is associated with Scream Tracker v3 module, a audio file.

Open .S3M details →