JSyn - modular synthesis API for Java.
JMSL - Java Music Specification Language
PortAudio - cross platform audio I/O API for 'C'


JSyn is licensed under the Apache License V2. This is a liberal open source license that allows for commercial use with minor restrictions. A good overview is here.

Source Code

The source code is available on GitHub at . You can build the code using ANT.

Download JAR Files

Release Notes

Current version is 16.8.0

This JAR file contains only the new pure Java JSyn API. It was built from the JSyn repository on GitHub using Ant. It is recommended for all new development.

jsyn-20171016.jar - released October 16, 2017, (RECOMMENDED) - source code of examples, updated December 1, 2016


Ignore this section unless you have very old JSyn code that used the old com.softsynth.jsyn API form before 2012.

The jar file below contains both the old JSyn API and the new pure Java API. It is deprecated. It should only be used for old projects that were written with the old API.

jsyn-complete-20160812.jar - released Aug 8, 2016 (deprecated)

The jar file below contains just the old JSyn API. You will need to combine it with the latest new JSyn JAR.

jsyn-old-api-20161206.jar - released Dec 6, 2016 (deprecated)

JPortAudio Binaries (optional)

JPortAudio is a wrapper for the PortAudio library. It can be used to provide multi-channel audio and 24-bit resolution to JSyn 16.5.3 and above. Documentation and source here. Also please read the "index.html" in the downloaded archive.

  1. - ALPHA - 9/4/12 for Intel Macintosh
  2. - ALPHA - 9/4/12 for Windows

Archive of Old Versions - Obsolete

Pure Java API

Mixed Old + New API