QSPICE

At a glance

• Editor score
  6.0 / 10
• Pricing
  Free plan
• Best for
  Free mixed-signal simulation
• Free plan
  Yes
• Paid from
  Free
• Schematic capture
  Yes
• Founded
  2015 · Greensboro, North Carolina, USA
• Facts checked
  21 Sep 2026

• Where it wins

  • Supports mixed analog and digital circuit simulation
  • Includes C++ and Verilog compilation
  • Offers Qorvo power-device models and air-gapped operation

• Where it doesn't

  • Windows-only desktop deployment
  • No listed integrations with external platforms
  • Local operation may not suit cloud-based workflows

Our verdict on QSPICE

QSPICE is downloadable circuit simulation software from Qorvo for power, analog, RF, and digital design engineers. It combines graphical schematic capture with mixed analog and digital simulation, supporting complex digital circuits and algorithms. The software runs locally on Windows PCs, including air-gapped environments, and is available free for commercial use. Its audience includes engineers who need a desktop tool for circuit editing, simulation, waveform processing, and power-device modeling without a paid license.

The feature depth is strongest around mixed-signal and power-oriented design. QSPICE includes C++ and Verilog compilation, local simulation, graphical waveform analysis, and publication-quality graphics. Engineers can create MOSFET, diode, and JFET models, while the Qorvo silicon-carbide and power-device model library adds a focused component resource for power electronics work. This combination makes QSPICE more than a basic schematic editor: it supports custom modeling, digital algorithms, and analysis within one local workflow.

Deployment is both a practical advantage and a boundary. Air-gapped operation supports environments where local processing is required, while the Windows-only desktop format keeps the product focused on PC-based engineering work. That same focus may be less suitable for teams that need integrations, cloud access, or platform flexibility. Qorvo supports the software through technical resources and a community forum. Choose QSPICE for free mixed-signal simulation, custom device models, and power-device analysis on Windows; choose an alternative if integrations or non-Windows deployment are central requirements.

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QSPICE pricing

QSPICE fact sheet

Alternatives to QSPICE

• ETAPA broad electrical engineering platform for modeling, analysis, field workflows, and automation.8.9
• Trimble Electrical DesignerA standards-focused suite for calculating, validating and reporting electrical system designs.8.8
• EEEPLAN Electric P8A broad ECAD tool for structured electrical documentation and production workflows.8.7

See all QSPICE alternatives →

Featured on iTechGuides

QSPICE is listed in our Electrical Design Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update