LTspice AlternativesCircuit Simulators & Electronic Design Automation Tools like LTspice

LTspice is described as 'IV is a high performance Spice III simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators' and is a circuit simulator in the education & reference category. There are more than 25 alternatives to LTspice for a variety of platforms, including Windows, Linux, Mac, Web-based and Android apps. The best LTspice alternative is KiCad, which is both free and Open Source. Other great apps like LTspice are QUCS, Pspice, Circuit JS and Proteus PCB design.

filter to find the best alternatives

LTspice alternatives are mainly Circuit Simulators, but if you're looking for Electronic Design Automation Tools or Circuit Designers you can filter on that. Other popular filters include Linux, Android, iPad, Free, iPad + Circuit Simulation, Open Source and iPhone. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to LTspice.
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Alternatives list

  1. KiCad icon

    KiCad

     118 likes
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    KiCad is an open source software suite for electronic design automation (EDA) - designing schematics of electronic circuits and printed circuit boards (PCB). KiCad is developed by Jean-Pierre Charras. And features an integrated environment between schematic capture, bill of...

    59 KiCad alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • PortableApps.com
    • Docker
    PcbNew - Editor
     

    • KiCad is the most popular Windows, Mac & Linux alternative to LTspice.

    • KiCad is the most popular Open Source & free alternative to LTspice.

    • KiCad is Free and Open SourceLTspice is Free and Proprietary
    • KiCad is LightweightLTspice is not according to our users
  2. QUCS icon

    QUCS

     38 likes
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    The Quite Universal Circuit Simulator (QUCS) is an integrated circuit simulator allowing the simulation and graphical presentation of results of large-signal, small-signal and noise behavior in circuits.

    36 QUCS alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    QUCS screenshot 1
     
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    1
    16
    Comments about QUCS as an Alternative to LTspice
    Guest
    Positive
    3

    it is much easier to operate compared to Lt Spice

    Review by a new / low-activity user.
    LTspice Icon
    QUCS icon

    • Most users think QUCS is a great LTspice alternative.

    • QUCS is Free and Open SourceLTspice is Free and Proprietary
  5. Circuit JS icon

    Circuit JS

     63 likes
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    This is a javascript electronic circuit simulator. When the applet starts up you will see an animated schematic of a simple LRC circuit. The green color indicates positive voltage. The gray color indicates ground. A red color indicates negative voltage.

    47 Circuit JS alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    Circuit JS screenshot 1
     
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    12
    Comments about Circuit JS as an Alternative to LTspice
    Top Positive Comment
    guoiewbvc923
    0

    The best free tool to simulate circuits in the browser. There are almost no other tools to do simulations in a browser and it even allows to save and load circuits as files.

    Top Negative Comment
    Guest
    1

    It isn't a SPICE software!

    Review by a new / low-activity user.
    Guest
    Negative
    1

    CircuitJS does not run Spice (the core circuit simulator used by LTSpice, PSpice, and others). CircuitJS does not have built-in models for manufactured components nor does it allow you to define your own subcircuits. It was never built for commercial circuit design (while LTSpice was).

    Review by a new / low-activity user.
    Show more comments
    3 of 5 comments
    LTspice Icon
    Circuit JS icon

    • Some users think Circuit JS is a great LTspice alternative, some don't.

    • Circuit JS is the most popular Web-based alternative to LTspice.

    • Circuit JS is Free and Open SourceLTspice is Free and Proprietary
  6. Proteus PCB design icon

    Proteus PCB design

     18 likes
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    Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a powerful, integrated and easy to use suite of tools for professional PCB Design.

    50 Proteus PCB design alternatives

    Cost / License

    • Pay once
    • Proprietary

    Application types

    Platforms

    • Windows
    Proteus PCB design screenshot 1
     

    • Proteus PCB design is the most popular commercial alternative to LTspice.

    • Proteus PCB design is Paid and ProprietaryLTspice is Free and Proprietary
  9. Altium Designer icon

    Altium Designer

     18 likes
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    Features a unified workflow for schematic capture, PCB layout, mixed analog/digital simulation, signal integrity analysis, real-time 3D editing, ECAD-MCAD collaboration, component libraries, collaborative design tools, BOM generation, routing, and manufacturing outputs.

    51 Altium Designer alternatives

    Cost / License

    • Subscription
    • Proprietary

    Application type

    Platforms

    • Windows
    Altium Designer screenshot 1
     
  10. Ngspice icon

    Ngspice

     8 likes
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    Ngspice is a mixed-level/mixed-signal circuit simulator. Its code is based on three open source software packages: Spice3f5, Cider1b1 and Xspice. Ngspice is part of gEDA project, a full GPL'd suite of Electronic Design Automation tools.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    ngspice on KDE (Linux) with gschem in background
     
  13. Simetrix icon

    Simetrix

     Like
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    SIMetrix/SIMPLIS enables engineers to design and simulate switching power electronics systems

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Windows
    Simetrix screenshot 1
     
  14. Qucs-S icon

    Qucs-S

     2 likes
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    Qucs-S is a spin-off of the Qucs cross-platform circuit simulator. "S" letter indicates SPICE. The purpose of the Qucs-S subproject is to use free SPICE circuit simulation kernels with the Qucs GUI.

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Linux
    • Flathub
    • Flatpak
    Qucs-S screenshot 1
     
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    2
    Comments about Qucs-S as an Alternative to LTspice
    Guest
    Positive
    0

    Has a nice graphical interface and can integrate a simulation application like ngspice

    Review by a new / low-activity user.
    Guest
    Positive
    0

    Harmonic Balance simulation and Xyce!

    Review by a new / low-activity user.
    LTspice Icon
    Qucs-S icon
    • Qucs-S is Free and Open SourceLTspice is Free and Proprietary
12 of 35 LTspice alternatives