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Description
CircuitSim is a comprehensive SPICE circuit simulation tool featuring a library of over 3,000 components and a contemporary schematic editor, all accessible online for free without the need for installation. Designed for use by students, educators, and professionals alike, it operates directly in a web browser, making it compatible with Chromebooks and secured school laptops without requiring administrative access. Users can perform seven types of analyses, including interactive and transient analyses, with results displayed on oscilloscope-style graphs and the ability to place probes at any point in the circuit. Additionally, users can create custom components from SPICE model text or import symbols from KiCad, enriching the simulation experience. CircuitSim also supports the import of Multisim Live designs before its scheduled retirement on September 15, 2026, making it a unique browser-based solution that can handle .csim, .ms14, and .msjs files, preserving wiring, component placement, net labels, probes, and simulation configurations. Furthermore, classroom licensing options are available, providing features such as seat assignments, anonymous student seating, and private student project spaces to enhance the educational experience. This ensures that educators can effectively manage their classroom environments while leveraging advanced simulation tools.
Description
DipTrace is a professional PCB design suite from Novarm Ltd, in continuous development since 2004 and used by over 30,000 engineers across 50+ countries. Companies in aerospace, defense, medical devices, and industrial electronics rely on it for production work.
The suite covers the full design flow in one environment. Schematic Capture handles multi-sheet hierarchical projects with electrical rule check, a Digital SPICE Simulator for analog and digital circuits, and cross-selection with the board. PCB Layout provides interactive push-and-shove editing, where moving or rotating a placed component displaces neighbouring traces and vias as you work, and dragged traces route themselves around pads, keepouts, and existing copper. Designers choose whether design rules are enforced at all times or violations are permitted deliberately.
High-speed work is supported through differential pair routing, length matching, layer stackup management, and a PCB calculator. Manufacturing output covers Gerber X2, ODB++, IPC-2581, NC Drill, and STEP for mechanical CAD.
Version 5.3 introduced a native XML project format that mirrors the binary format feature for feature, making designs practical to keep under Git or another version control system. Component sourcing runs through a database-powered search with Mouser integration and SnapEDA access to more than 10 million parts.
Projects import from Altium, KiCad, Eagle, OrCAD, EasyEDA Pro, Pulsonix, and PADS.
DipTrace runs natively on Windows, macOS, and Linux. Licensing is perpetual — bought once, with no subscription or maintenance fees — across five editions starting at $75. Technical support is provided to every user, including those on the free edition.
API Access
Has API
No
API Access
Has API
No
Integrations
No details available.
Integrations
No details available.
Pricing Details
$2.99
Free Trial
No
Free Version
Yes
Pricing Details
$75 per license
Perpetual license, no subscription. Five editions: Starter $75, Lite $145, Standard $395, Extended $695, Full $995 per seat. Free edition available up to 300 pins. Volume, network, academic, and non-profit pricing available. Technical support included for all users.
Free Trial
Yes
Free Version
Yes
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
Yes
Deployment
Web-Based
No
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
Yes
Mac
Yes
Linux
Yes
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
Yes
Live Rep (24/7)
No
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
Yes
In Person
No
Vendor Details
Company Name
CircuitSim
Founded
2025
Country
United States
Website
circuitsim.com
Vendor Details
Company Name
Novarm Ltd
Founded
2004
Website
diptrace.com
Product Features
Product Features
PCB Design
3D Visualization
Yes
Autorouting
Yes
Collaboration Tools
No
Component Library
Yes
Design Rule Check
Yes
Differential Pair Routing
Yes
Schematic Editor
Yes