ModelSim-Altera Software More Info »
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...
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...
Spice based electronic circuit simulation and circuit analysis software. 5Spice has the analysis capabilities needed by experienced circuit designers while remaining easy to use.
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)
System Verilog, Verilog, VHDL, SystemC HDL Simulator for ASIC Design and Verification
HDL Simulator of System Verilog, Verilog, and VHDL for ASIC design and verification.
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