What is the closest alternative to LTspice?

CircuitMaker is the closest direct alternative to LTspice, with comparable feature depth and a similar target user base.

Is there a free alternative to LTspice?

Yes — CircuitMaker is free and the most accessible option on this list.

Why would I switch away from LTspice?

Common reasons: cost (perpetual vs subscription pricing), platform requirements (Mac / Linux / web), specific feature gaps, or vendor lock-in concerns. Each alternative below addresses one or more of these.

Best LTspice Alternatives in 2026: 3 Tools Compared

LTspice is a strong choice, but it's not the only one. Below are 3 editor-vetted alternatives to LTspice— every tool here shares the same problem-space but differs on price, platform, target user, or feature depth. We've added a one-line "why try this instead" callout for each so you can short-list the right next step in seconds.

Looking for an alternative to

LTspice

Free · Windows / macOS · ★ 4.8/5

1.
C
CircuitMakerFree · Windows
★ 4.1/5
Free community-edition PCB design from Altium, with public-cloud project sharing.
Try it because it's free, real altium engine for free.
Full CircuitMaker profile →Compare side-by-side
2.
K
KiCadOpen Source · Windows / macOS / Linux
★ 4.7/5
Free, open-source professional schematic capture and PCB layout suite.
Try it because it's open source, it also runs on Linux.
Full KiCad profile →Compare side-by-side
3.
AD
Altium Designerfrom $3850 · Windows
★ 4.9/5
The professional standard for PCB and electronics design.
Try it because industry-leading 3d pcb.
Full Altium Designer profile →Compare side-by-side

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