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About

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.

About

More than 1 million real-time updated components have been created, letting you focus on the design, and you can create or import your own common libraries. Benefit from China’s leading electronic components distributor - LCSC , EasyEDA supports direct links to more than 200,000 real-time, in-stock components at LCSC . Designers can refer to stocks, prices, and order at any time during design. It has the same features as the online version, and has more design areas, we have made a lot of improvements, recommended. Easy to use. If you have used other PCB tools then you can use it even more quickly. Light weight, less resource hungry, smoother experience, speed up your design. No activation, just register and login to use, no licensing required. Local backup automatically with document recovery at any time. Your files will also be saved on the cloud server, giving you double backup for you data security.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

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

Audience

Anyone looking for a PCB Design solution

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$2.99
Free Version
Free Trial

Pricing

$4.9 per month
Free Version
Free Trial

Reviews/Ratings

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

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 4.0 / 5

Pros & Cons from Real Users

Pros

  • Free and powerful. I designed my circuits very easy. It's amazing very easy useful. It supports simulation steps.

Cons

  • The simulation is not continuous. It could be a Proteus-like simulation. Or this might be an option.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

CircuitSim
Founded: 2025
United States
circuitsim.com

Company Information

EasyEDA
China
easyeda.com

Alternatives

Alternatives

OrCAD X

OrCAD X

Cadence Design Systems
Allegro X Design Platform

Allegro X Design Platform

Cadence Design Systems
LTspice

LTspice

Analog Devices
TINA-TI

TINA-TI

Texas Instruments
Autodesk EAGLE

Autodesk EAGLE

Autodesk

Categories

Categories

Integrations

No info available.

Integrations

No info available.
Claim CircuitSim and update features and information
Claim CircuitSim and update features and information
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Claim EasyEDA and update features and information