
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.

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Which is more popular?
Based on our record, QUCS seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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In their own words, as submitted to SaaSHub.


No description of QUCS yet.
Add an API key. Your agent deploys from Claude Code, Cursor, or any MCP client. Bring your own Ubuntu/AWS server or provision Hetzner/DigitalOcean/AWS at cost. Flat plan for the control plane; compute at the provider’s rate. Free forever: 1 small server, 1 app.
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Overall verdict
Why this product is good
Recommended for
No analysis of CloudPloy yet.
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
Tracking CloudPloy since Sep 2026.
When comparing QUCS and CloudPloy, 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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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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