Altium Designer is described as 'Unified environment enables schematic capture, PCB layout, mixed-signal simulation, signal integrity analysis, real-time 3D editing, and ECAD-MCAD collaboration' and is a CAD software in the education & reference category. There are more than 50 alternatives to Altium Designer for a variety of platforms, including Windows, Linux, Mac, Web-based and Flathub apps. The best Altium Designer alternative is KiCad, which is both free and Open Source. Other great apps like Altium Designer are Fritzing, Square Sketch, Autodesk EAGLE and QUCS.
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TinyCAD is an open source schematic capture program for MS Windows. Use TinyCAD to produce professional circuit diagrams and export net list information to PCB applications.
PCB Elegance is a suite of circuit board design tools for Windows. Including schematic capture, board layout, and manufacturing file generation. First released in 1998, it was proprietary software until 2012, when it was released as open source software under the GPL.
Educational virtual 3D laboratory simulator helps students, teachers, and tutors conduct electrical circuit experiments by providing realistic equipment access anywhere, avoiding availability issues and safety hazards, and enhancing learning with immediate feedback and...
The Cadence OrCAD product line provides affordable, high-performance PCB design tools that boost productivity for smaller design teams and individual PCB designers.
VisCircuit is a note-taking tool that contains an easy circuit diagram drawer and a beautiful note editor, designed to help you learn about electronics and circuits more easily.
VisCircuit is the most popular SaaS alternative to Altium Designer.
DipTrace - Professional Schematic Capture and PCB Design Software
Are you looking for a professional and easy-to-use PCB Design software with powerful autorouter and reasonable price? Try DipTrace and you will be surprised! DipTrace is a complete state-of-the-art PCB Design Syst.
oregano - An electrical engineering tool for GNOME
oregano is an application for schematic capture and simulation of electronic circuits. The actual simulation is performed by Berkeley Spice, or GNUcap or the new generation ngspice which is required for simulation, but not neces.
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Is very similar, and its free