a free and powerful circuit simulator


Currently QucsStudio supports Windows® only. It runs without installation. Decompressing the archive file creates the directory QucsStudio.
It is run by executing QucsStudio/bin/qucs.exe.

download QucsStudio-4.2.2.zip (51 MByte)

download QucsStudio-3.3.2-light.zip (9.5 MByte)

Changes in the new version: Changelog


The source code of ICARUS, GHDL, KiCAD, MinGW and Octave can be downloaded from the official homepages. QucsStudio uses the unchanged binaries.

ADMS (VerilogA converter from the ADMS project)
QucsConv (file format converter)
QucsFilter (filter synthesis tool)
technical documentation (circuit simulation, models etc.)

See README and COPYING files for details.