HSPICE

As IC geometries continue to shrink, the need for an accurate circuit simulator is critical.

17 Alternatives To HSPICE

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BlackBoard Circuit Designer

Help building prototypes on so called breadboards easily
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Circuit Simulator

Animated electronic circuit simulator using ideal components to visualize voltage and current.

Gnucap

Gnucap is the GNU Circuit Analysis Package, a modern post-spice circuit simulator with several…

KiCad

A Cross Platform and Open Source Electronics Design Automation Suite

Ktechlab

KTechLab is an IDE for microcontrollers and electronics.
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LTspice

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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MATLAB

A high-level language and interactive environment for numerical computation, visualization, and programming

MacSpice

Electronic circuit simulation for the Mac, support and downloads site.
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McCAD 3SPICE

Mixed Mode Simulation
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Micro-Cap

Spectrum Software makes the Micro-Cap SPICE simulator, a SPICE and PSPICE® compatible SPICE software analog and digital circuit simulator for electronic design automation circuit simulation.

Ngspice

Ngspice is a mixed-level/mixed-signal circuit simulator.

Oregano

oregano - An electrical engineering tool for GNOME
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PartSim

PartSim is a free and full-featured SPICE circuit simulator that runs directly in your browser.
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Proteus

Proteus - Proteus is a great electrical suite for circuit simulation purposes. You can simulate a single processor or multiple ones at the same time. The application is a great alternative for Virtual System Modelling.

Proteus PCB design

Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a…

QUCS

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.

VeroRoute

Cross-platform software for producing Veroboard (stripboard), Perfboard, and single-sided PCB…