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CircuitLab VS ModelSim

Compare CircuitLab VS ModelSim and see what are their differences

CircuitLab logo CircuitLab

Sketch, simulate, and share your circuits, entirely in your browser -- no install required.

ModelSim logo ModelSim

ModelSim-Altera Software
  • CircuitLab Landing page
    Landing page //
    2023-05-13
  • ModelSim Landing page
    Landing page //
    2023-09-30

CircuitLab features and specs

  • User-Friendly Interface
    CircuitLab offers a clean and intuitive interface that makes it easy for users to draw circuits, simulate results, and interact with components efficiently.
  • Cross-Platform Accessibility
    Being a web-based tool, CircuitLab is accessible from any device with an internet connection, enabling flexibility in design and location independence.
  • Comprehensive Component Library
    The platform provides a wide range of pre-designed components which can be easily dragged and dropped into a circuit design, simplifying the design process.
  • Real-Time Simulation
    CircuitLab allows users to simulate circuits and view results in real-time, helping users to instantly analyze and validate their designs.
  • Educational Resources
    CircuitLab offers resources and documentation which are useful for students and educators, making it a valuable tool for learning and teaching electronics.
  • Collaboration Features
    Users can share their designs with others and collaborate in real-time, enhancing teamwork and collective problem-solving.

Possible disadvantages of CircuitLab

  • Subscription Cost
    CircuitLab requires a paid subscription for access to advanced features, which might be a barrier for students or hobbyists on a tight budget.
  • Limited Offline Functionality
    As a primarily web-based platform, CircuitLab has limited functionalities when offline, which can be a drawback where internet access is unreliable.
  • Complexity for Beginners
    While CircuitLab is user-friendly, complete beginners to electronics might find certain features overwhelming initially without proper guidance.
  • Performance Issues
    On lower-end devices, performance issues such as lag or slow simulations might occur, especially with complex circuit designs.
  • Lack of Advanced Analysis Tools
    For professional engineers or advanced projects, CircuitLab may lack some of the more advanced analysis and testing tools provided by other software.
  • Limited Industry Application
    CircuitLab may not support all the industry's specific components or standards, limiting its use in professional or industry-specific applications.

ModelSim features and specs

  • Comprehensive Debugging Tools
    ModelSim provides a wide array of debugging tools, including waveform viewing, code tracing, and breakpoints, which help engineers identify and fix issues in their HDL designs efficiently.
  • Cross-Platform Support
    ModelSim is available on multiple platforms, including Windows and Linux, providing flexibility and accessibility for users with different operating system preferences.
  • Support for Multiple Languages
    ModelSim supports both VHDL and Verilog, making it versatile and suitable for teams working across different HDL languages in their projects.
  • Integration with Quartus
    ModelSim integrates seamlessly with Intel's Quartus Prime software, streamlining the design flow from simulation to synthesis and easing the workflow for Intel FPGA users.

Possible disadvantages of ModelSim

  • High Cost
    For some users, the licensing fees for ModelSim can be quite high, especially for smaller companies or individual users, making it a significant investment.
  • Complex User Interface
    The user interface of ModelSim can be overwhelming for new users or those unfamiliar with EDA tools, leading to a steeper learning curve.
  • Resource Intensive
    ModelSim can be resource-intensive, requiring significant computing power and memory resources, which may necessitate hardware upgrades for optimal performance.
  • Limited Free Version
    The free version of ModelSim, ModelSim-Altera Starter Edition, comes with limitations on design size and features, which may not be suitable for larger or more complex projects.

CircuitLab videos

Editing and DC Simulation in Circuitlab

More videos:

  • Review - CircuitLab on iPad
  • Review - Transient Analysis in CircuitLab

ModelSim videos

Lecture 28 - Modelsim Simulation Tool

Category Popularity

0-100% (relative to CircuitLab and ModelSim)
Simulation
62 62%
38% 38
Electronics
61 61%
39% 39
Design Tools
0 0%
100% 100
Technical Computing
100 100%
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare CircuitLab and ModelSim

CircuitLab Reviews

Best Free Circuit Simulation software for Windows 10
If you don’t want to download an application then CircuitLab is what you need. It is an online circuit simulator and schematics tool. It doesn’t have all the bells and whistles unlike the previous two applications on our list, LTSpice, and NgSpice, but is an excellent alternative if you just want to make a basic circuit and simulate it.

ModelSim Reviews

We have no reviews of ModelSim yet.
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Social recommendations and mentions

Based on our record, CircuitLab seems to be more popular. It has been mentiond 6 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

CircuitLab mentions (6)

  • I'm looking for an engineer to help me design a very basic comparison circuit for 2 batteries that will light an led if a battery is low while the other battery powers the load. $100 offered
    I need someone to design and point me to the correct parts for a circuit that will use 2, 5V LiPo batteries that are rechargeable, in a circuit that is built to run a memory bank. Basically a CMOS circuit, very low current draw. I need the LED indication to replace a battery. The switching between them has to be fast enough that the memory doesn't lose the program on it. $100 to the first person with a full parts... Source: almost 2 years ago
  • Is there a circuit simulation software? I'm very much a beginner.
    My go-to site for a quick simulation, and pretty schematics (that sounds almost NSFW) is circuitlab.com. Source: about 2 years ago
  • How to design preamp pedals?
    If you have a 10 band EQ pedal into a flat amp you can hear what these frequency shapes sound like. Once you understand what these preamps are doing, then you can learn about the electronic side, read the schematics, and start designing / playing with your own circuit mods / designs. A circuit simulator (like circuitlab.com) would be a good place to start doing that. Source: over 2 years ago
  • Is this circuit solving correct ?
    Tips if you want to check is circuitlab.com. Its very fast and easy to check. Source: about 3 years ago
  • Need some help here...
    I used circuitlab.com to simulate this behaviour, to obtain this image, which show what happens to the voltage across a capacitor when it is charged by passing a constant current through it. Noite that the slope (gradient) of the plot is constant during the entire time current is passing. Source: almost 4 years ago
View more

ModelSim mentions (0)

We have not tracked any mentions of ModelSim yet. Tracking of ModelSim recommendations started around Mar 2021.

What are some alternatives?

When comparing CircuitLab and ModelSim, you can also consider the following products

Circuit Tree - Design and order Boards in Minutes

gEDA Project - All about General Public License (GPL) and Electronic Design Automation (EDA) software tools

LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.

Riviera-PRO - System Verilog, Verilog. VHDL, SystemC, HDL simulator targeting ASIC and large FPGA designs.

QUCS - Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.

Synopsys VCS - HDL Simulator of System Verilog, Verilog, and VHDL for ASIC design and verification.