Best NI Multisim Alternatives & Equivalents (2026)
NI Multisim is subscription-only — teams that need perpetual ownership or want to cap long-term spend or need macOS / Linux / web access commonly look for equivalent software. The most cited pain point: windows-only. Below are 4 options evaluated for file format openness, scripting extensibility, and EDA/CAM workflow fit. LTspice is our top free pick.
Ranked Alternatives & Equivalents to NI Multisim
4 Options- 1.L
LTspiceFree · Windows / macOS★ 4.8/ 5 Editor RatingFree SPICE simulator from Analog Devices, the de facto industry standard for analog design.
Try it because it's free, it also runs on macOS, its expert score (4.8/5) edges ahead.#1 Editor PickCompletely free — no node-lock, no per-seat Famously fast and stable SPICE solver Available at no cost. - 2.PD
Proteus Design SuitePerpetual · Windows★ 4.3/ 5 Editor RatingSchematic, simulation, and PCB design with embedded-firmware co-simulation.
Try it because it offers a perpetual licence option (no mandatory recurring subscription), unique microcontroller co-simulation.#2 Editor PickUnique microcontroller co-simulation Perpetual license model Offered under a Perpetual model as a cost-effective alternative to NI Multisim. - 3.O
OrCADSubscription / Perpetual · Windows★ 0.0/ 5 Editor RatingCadence's professional PCB design suite featuring PSpice simulation, schematic capture, and high-performance routing for electronic design automation.
Try it because it sits one tier above on enterprise capability, industry-standard pspice simulation.#3 Editor PickIndustry-standard PSpice simulation Comprehensive PCB design capabilities - 4.K
KiCadOpen Source · Windows / macOS / Linux★ 4.7/ 5 Editor RatingFree, open-source professional schematic capture and PCB layout suite.
Try it because it's open source, it also runs on macOS / Linux, its expert score (4.7/5) edges ahead.
Electronics tools demand micro-precision on layer outputs. Make sure your design candidates produce standard, production-ready ODB++ and Gerber files to prevent manufacturing halts.
Switching to open-source software keeps your blueprints securely stored locally in open, human-readable schemas (like XML/JSON) rather than proprietary cloud silos.
Engineering tasks benefit immensely from script automation. Opt for software that offers a robust, developer-accessible scripting interface to build custom design utilities.
Frequently Asked Questions
- What is the closest alternative or equivalent to NI Multisim?
- LTspice is the closest equivalent and direct alternative to NI Multisim, offering a highly comparable functional scope and targeting the same engineering workflows.
- Is there a free equivalent to NI Multisim?
- Yes — LTspice is free and is the most cost-effective equivalent on this list.
- Why would I switch away from NI Multisim?
- The most common pain points reported by NI Multisim users: Windows-only. Also: pCB layout (Ultiboard) is the weak partner. Each equivalent on this list addresses at least one of these gaps.
Build Your Custom Shortlist
Still undecided? Answer six rapid questions in our Smart Matchmaker to compare NI Multisim and these vetted competitors directly against your specific budget and machine limits.
Launch Matchmaker →