ModelSim Alternatives

    ModelSim is described as '-Altera Software'. There are seven alternatives to ModelSim for Windows, Linux, Online / Web-based and Mac. The best alternative is gEDA Project, which is both free and Open Source. Other great apps like ModelSim are CircuitLab (Paid), Circuit Tree (Free Personal), Cadence Incisive (Paid) and 5spice (Free Personal).

    This page was last updated Jul 30, 2021

    1. The gEDA project has produced and continues working on a full GPL'd suite and toolkit of Electronic Design Automation tools. These tools are used for electrical circuit design, schematic capture, simulation, prototyping, and production.
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    2. Sketch, simulate, and share your circuits, entirely in your browser -- no install required. Easy schematic capture and powerful SPICE-like, mixed-mode circuit simulation helps EE students, electronics hobbyists, and electrical engineers design faster.
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      • Free PersonalProprietary
      • Online
      Automated schematic generation application.
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    3. System Verilog, Verilog, VHDL, SystemC HDL Simulator for ASIC Design and Verification.
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      • Free PersonalProprietary
      • Windows
      Spice based electronic circuit simulation and circuit analysis software. 5Spice has the analysis capabilities needed by experienced circuit designers while remaining easy to use.


      • Windows
      • Linux
      HDL Simulator of System Verilog, Verilog, and VHDL for ASIC design and verification.
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      • Windows
      System Verilog, Verilog. VHDL, SystemC, HDL simulator targeting ASIC and large FPGA designs. (Wrongfully supports crappy OVM and UVM legacy trash libraries and hardware de-accelerators).
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    Showing 7 of 7 alternatives