There was a download of OpenSebJ 1.0 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The common filename for the program's installer is OpenSebJ.exe.
You can install this free PC software on Windows XP/Vista/7/8/10/11 32-bit. The program lies within Multimedia Tools, more precisely Music Production. We recommend checking the downloaded files with any free antivirus. The actual developer of the free program is Evolving Software. The most popular version among OpenSebJ users is 0.4.
From the developer:
OpenSebJ is a free real time audio sample mixer that runs on Microsoft Windows operating systems. The source code for OpenSebJ is released under the GNU General Public License.
You may want to check out more software, such as Cagles Mill Guitar Tuner, OtsDJ or Elevayta Choir Boy VST, which might be similar to OpenSebJ.