a free and powerful circuit simulator

Latest News

New optimization examples uploaded

13th April 2019

The optimization package now contains many new example, available in the section examples.

New tutorials available

6th October 2018

Two new tutorials by Jose Manuel Campelo available in the section publications.

Version 2.5.7 released

14th July 2018

In order to celebrate the anniversary, QucsStudio version 2.5.7 is now available. Users can look forward to many new features. Furthermore, the examples were updated and new video links are located in the section screenshots.

15th anniversary

May 2018

15 years ago the Qucs project started. Congratulations on the birthday!

Support section added

1st August 2016

This homepage now contains a list with tasks that are needed for the development of this project. Everybody who wants to help is called to have a look into the support section.

Result of feature survey published

1st March 2016

The feature survey has just been closed. The result can be seen here.

New tutorials available

16th February 2016

A tutorial by Jose Manuel Campelo is now ready to download. Gunthard Kraus also upgraded his tutorial on his homepage.

Tutorial V1.6 available

14th December 2015

version 1.6 of the german tutorial by Gunthard Kraus available. It now contains a chapter about Harmonic Balance simulations.

Feature survey started

7th December 2015

A survey has just started to find new features for the future development of QucsStudio. Please click here and take part!

New homepage

30th November 2015

A completely new design for this homepage has been released. Hopefully you like it.

Tutorial V1.5 available

6th November 2015

version 1.5 of the tutorial by Gunthard Kraus available

Russian tutorial available

2nd November 2015

Russian version of Gunthard Kraus tutorial available. Many thanks to Vladimir Gololobov.

Donation button installed

9th October 2015

PayPal button installed on this site. Please donate if you like QucsStudio.

Version 2.4.1 released

29th September 2015

QucsStudio version 2.4.1 released


Tutorial available

25th February 2015

first version of the german tutorial by Gunthard Kraus available

Version 2.2.1

3rd January 2015

QucsStudio version 2.2.1 released and examples updated


Version 1.5.0 released

25th May 2013

QucsStudio version 1.5.0 released

10th anniversary

May 2013

10 years of Qucs development. Happy birthday!


First QucsStudio version released

1st February 2011

QucsStudio version 1.0.0 released


First Qucs version released

8th December 2003

Qucs version 0.0.1 released

Qucs development started

May 2003

The original Qucs project was born.