Audience

Engineering students, professors and teachers, makers and hobbyists, and practicing engineers

About CircuitSim

CircuitSim is a full SPICE circuit simulator with a 3,000+ component library and a modern schematic editor. No install, free to get started. Built for students, educators, and professionals.

It runs in a browser tab and needs no admin rights, so it works on Chromebooks and locked-down school laptops. Run seven kinds of analysis: interactive, interactive operating point, transient, AC sweep, DC operating point, DC sweep, and parameter sweep. Results plot on oscilloscope-style charts, with probes you can drop anywhere in the circuit. Define custom parts from SPICE model text or import KiCad symbols.

CircuitSim also imports Multisim Live designs ahead of that product's retirement on September 15, 2026. It is the only browser tool that opens .csim, .ms14, and .msjs files, and it rebuilds the schematic with wiring, placement, net labels, probes, and simulation settings intact.

Classroom licensing adds seat assignment, anonymous student seats, and private student work.

Other Popular Alternatives & Related Software
TopSpice
TopSpice
TopSpice is a true analog/digital/behavioral mixed-mode circuit simulator for the PC. It offers the most advanced SPICE simulator in its price range, compatibility, an easy to use integrated design environment from schematic capture to graphical waveform analysis, and full 64-bit operation for faster performance and larger memory space. With TopSpice you have the choice to design from schematic drawings, text netlist (SPICE) files, or both. All design and simulation functions are available from either the schematic or netlist editor front-ends. TopSpice includes a native full-featured mixed-mode mixed-signal circuit simulator capable of simulating circuits containing any arbitrary combination of analog devices, digital functions and high-level behavioral blocks. With TopSpice you can verify and optimize your design from the system to the transistor level.
Learn more
Multisim
Multisim
Multisim ™ software integrates industry standard spice simulation with an interactive schematic environment to instantly visualize and analyze the behavior of electronic circuits. Its intuitive interface helps teachers reinforce circuit theory and improve theory retention throughout the engineering curriculum. By adding powerful circuit simulation and analysis to the design flow, Multisim ™ helps researchers and designers reduce iterations of printed circuit board (PCB) prototypes and save development costs. Multisim ™ for Education is circuit teaching application software for analog, digital and power electronics courses and labs. Multisim ™ provides engineers with the SPICE simulation, analysis and PCB design tools to rapidly iterate on designs and improve prototype performance.
Learn more
LTspice
LTspice
Its graphical schematic capture interface allows you to probe schematics and produce simulation results, which can be explored further through the built-in waveform viewer. The key to most circuit designs is the speed with which you can reach an understanding of your circuit, its correctness, and its limitations. LTspice outperforms many other simulation tools and enables you to iterate your designs in minimal time. Keyboard shortcuts are an alternate way to invoke one or more commands in LTspice that would otherwise only be accessible by clicking through the menu or toolbar. Our extensive collection of technical resources tackles a wide range of LTspice topics. Learn how to use transformers, add third-party models, create, work with symbols, and more.
Learn more
EveryCircuit
EveryCircuit
One animated circuit is worth a thousand equations and diagrams. Animations of voltages, currents, and charges are displayed right on top of the schematic, providing great insight into circuit operation. The real-time circuit simulation engine is custom-built for speed and interactivity. Easy one-click simulation, from simple resistors and logic gates to complex transistor-level oscillators and mixed-signal designs. While the simulation is running, you can flip switches, adjust potentiometers, tune LED current limiting resistors, ramp up input voltages, etc. The circuit will immediately respond to your changes, in real time. Mini-waveforms on top of schematic wires look different for digital and analog signals. Constant analog voltages are shown as numbers, digital wires are color-coded. Any pair of time-domain signals may be plotted in the XY mode. The oscilloscope scale and grid ticks are auto-updated to convenient values as the data changes.
Learn more

Pricing

Starting Price:
$2.99
Free Version:
Free Version available.

Integrations

No integrations listed.

Ratings/Reviews

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Company Information

CircuitSim
Founded: 2025
United States
circuitsim.com

Videos and Screen Captures

Circuit editor

Circuit editor

Circuit editor Custom component studio CircuitSim Home
Other Useful Business Software
$300 Free Credits for Your Google Cloud Projects Icon
$300 Free Credits for Your Google Cloud Projects

Start building on Google Cloud with $300 in free credits. No commitment, no credit card required until you're ready to scale.

Launch your next project with $300 in free Google Cloud credits—no strings attached. Test, build, and deploy without risk. Use your credits across the entire Google Cloud platform to find what works best for your needs. After your credits are used, continue with always-free tier services. Only pay when you're ready to scale. Sign up in minutes and start exploring.
Start Free Trial

Product Details

Platforms Supported
Cloud
Chromebook
Training
Documentation
Support
Online

CircuitSim Frequently Asked Questions

Q: What kinds of users and organization types does CircuitSim work with?
Q: What languages does CircuitSim support in their product?
Q: What kind of support options does CircuitSim offer?
Q: What type of training does CircuitSim provide?
Q: How much does CircuitSim cost?

CircuitSim Product Features

Page Already Claimed. Claim Again?