Home / Software / NI Multisim 14.3

NI Multisim 14.3 v14.3.1

2.1 GBupdated 2026-09-15 ★ 4.5Pre-activatedEngineering

Multisim 14.3 simulates circuits on a SPICE engine with an interactive bench: drag an oscilloscope, function generator or logic analyser onto the schematic and watch the circuit react as it runs.

The component database carries manufacturer models, and the MCU module allows microcontroller sketches to run alongside the analog environment. Netlists export to Ultiboard for PCB layout.

What's inside

  • SPICE simulation for analog, digital and mixed-signal circuits
  • Interactive instruments: scope, analyser, logic probe
  • Microcontroller co-simulation with the MCU module
  • Component database with manufacturer models
  • Schematic capture with netlist export to Ultiboard
  • DC, AC sweep, transient and Fourier analyses

How to install

  1. Unpack the archive with 7-Zip or WinRAR
  2. Run the installer as Administrator
  3. Wait for the component database to register
  4. Launch Multisim and open a sample circuit to verify

System requirements

Windows 10/11 x64, 8 GB RAM, 6 GB free disk space