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Oregano review

Free#37 of 41 in Electrical Design Software

A free, open-source Linux desktop tool for drawing circuit schematics and simulating them with ngspice.

5.1/10Editor score
Oregano5.1 Visit Oregano

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Oregano is a free, open-source desktop application for drawing electronic circuit schematics and simulating their behavior. It is aimed at Linux users who want a graphical way to create circuit diagrams and run simulations without moving between separate schematic and simulation tools. The product centers on two capabilities: graphical schematic creation and simulation through ngspice, which is also its listed integration. That focused scope suits straightforward circuit work better than users seeking a broad electrical-design environment.

Its ngspice connection is the defining feature: Oregano provides the graphical schematic interface, while ngspice handles circuit simulation. The published feature set characterizes simulation as basic, so buyers should view it as a simple schematic-and-simulation workflow rather than assume support for advanced analysis or broader electrical design tasks. Users who specifically need to create diagrams and simulate them in a desktop application may find that focus appropriate; those needing a wider set of design capabilities should compare alternatives.

Oregano is listed for Linux, with desktop deployment and an open-source pricing model. That combination may appeal to Linux users who prefer software they can inspect or adapt, and there is no paid plan structure to weigh. The trade-off is a narrow platform and feature scope: users on other operating systems, or those who need a broader toolset, should look elsewhere. Choose Oregano for simple, Linux-based schematic capture with ngspice simulation; do not choose it as a general-purpose electrical design suite.

Oregano pros and cons

  • Where it wins
    • Create electronic circuit schematics in a graphical desktop interface
    • Run circuit simulations through ngspice
    • Free and open-source
  • Where it doesn't
    • Linux is the only listed platform
    • Simulation is described as basic
    • The listed feature set is limited to schematic creation and simulation

Oregano fact sheet, pricing and score →

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