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News

Homepage not available

23rd January 2026

The official web page qucsstudio.de is currently broken. This also holds for the forum. Unfortunately, there isn't yet a schedule when it will be back again. Please pardon the inconvenience.

The latest version can be downloaded here: uSimmics 5.9

Version 5.9 published

10th January 2026

uSimmics Version 5.9 is available. Many bugs were fixed and many small features were added that make the usage more comfortable.

Once again, the biggest thanks to all who donated to this project and made the new release possible!

License

All people who use uSimmics or QucsStudio have to comply to the following terms:

uSimmics and QucsStudio are free software! Everyone has the permission to download and use it freely, even within commercial organizations.
Using uSimmics or QucsStudio is at your own risk! There is no warranty at all, not even for merchantability or fitness for a particular purpose.
It is forbidden to redistribute, modify or include uSimmics or QucsStudio in any commercial product! In case you want to do so, please contact the author for a special license.
The copyright information must not be removed! Whenever portions of the software (programs, pictures etc.) are used, a reference to the copyright must always exist.
All files, designs, scripts etc. created by you with uSimmics or QucsStudio are completely yours.

Furthermore, the following things should be kindly noted in order to keep this project alive:

When writing a publication whose outcome has partly been created with uSimmics or QucsStudio, it will be nice to mention the program.
If you use uSimmics or QucsStudio regularly and like the program, it will be nice to donate some money.
Companies, institutes and universities that use uSimmics or QucsStudio regularly should consider to pay for support.

Citation

Everybody who uses this software for a publication is kindly asked to cite the software as follows.

BibTex:

@ELECTRONIC{uSimmics,
author = {Michael Margraf},
title = {uSimmics (formerly QucsStudio) - a free and powerful circuit simulator},
url = {https://dd6um.darc.de/QucsStudio/}
}