diff --git a/README.md b/README.md
index 036c240..399c82a 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ This list is for websites, services, software, tools and more: everything that y
 - [Ngspice](http://ngspice.sourceforge.net/) - Open source SPICE circuit simulator.
 - [Circuit JS](http://www.falstad.com/circuit/circuitjs.html) - Open source online simulator for simpler circuits with live interactivity and visualization.
 - [Every Circuit](http://everycircuit.com) - Free to try online, visual, interactive circuit simulator for simpler circuits.
-
+- [Qucs](http://qucs.sourceforge.net/) - Open source integrated circuit simulator for DC, AC, S-parameter, noise analysis, etc.
 
 ## Gerber Viewers