
LTspice
KiCad
Fritzing
EasyEDA
Proteus PCB design
Altium Designer
Autodesk EAGLE
Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.

Queue-it
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Which is more popular?
Based on our record, Queue-Fair should be more popular than QUCS. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | sourceforge.net | queue-fair.com |
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Walkthroughs and reviews on video.
Qucs Tutorial: Simulating a common emitter bjt amplifier circuit
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External articles and on-site reviews we used to compare the two products.


The Qucs cross-platform circuit simulator is a spin-off of Qucs. The letter S stands for the SPICE engine, which performs all simulations within the software. The Qucs subproject's goal is to integrate free SPICE...
QUCS – Quite Universal Circuit Simulator is a free simulation software developed on GNU/Linux environment. Well, this software really works on other operating systems such as Solaris, Apple Macintosh, Microsoft...
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Recommendations tracked on public social media and blogs since March 2021.


If you can get s parameter model you can use that. There are also generic transformer and coupled line models so long as you've got a way of characterising it you should be able to model it. https://sourceforge.net/projects/qucs/. Source: over 3 years ago
The original patented online queue technology we invented to prevent web crashes https://queue-fair.com is free for small businesses. Source: over 3 years ago
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When comparing QUCS and Queue-Fair, you can also consider the following products.

LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
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Queue-it empowers organizations to deliver seamless user experiences and protect their brand reputation by controlling online traffic.
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A Cross Platform and Open Source Electronics Design Automation Suite
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Fritzing is an open-source initiative to support designers, artists, researchers and hobbyists to...
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Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
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