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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

LockDown Browser® is a custom browser that locks down the testing environment within a learning management system. Used at over 2000 higher educational institutions, LockDown Browser is the “gold standard” for securing online exams in classrooms or proctored environments. LockDown Browser’s name says it all: it "locks down" the browser on a computer or tablet. Students are unable to copy, print, access other applications, or visit other websites during an online exam. LockDown Browser also blocks hundreds of common and advanced methods of digital cheating, such as the use of Virtual Machines, remote desktops, screensharing, instant messaging, screen recording, keystroke combinations, launching applications with timers/alerts, browser cache exploits and much more.

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

Organizations that need a solution to lock down browsers during exams

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

$2795 per year
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 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

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

Respondus
Founded: 2000
United States
web.respondus.com/he/lockdownbrowser/

Alternatives

Alternatives

TINA-TI

TINA-TI

Texas Instruments
Mettl Remote Proctoring

Mettl Remote Proctoring

Mercer | Mettl
CircuitLogix

CircuitLogix

Logic Design

Categories

Categories

Integrations

Blackboard Learn
Blended Teaching
Brightspace
Canvas
Moodle
Sakai
Schoology Learning

Integrations

Blackboard Learn
Blended Teaching
Brightspace
Canvas
Moodle
Sakai
Schoology Learning
Claim CircuitSim and update features and information
Claim CircuitSim and update features and information
Claim LockDown Browser and update features and information
Claim LockDown Browser and update features and information