
Logisim
LTspice
Circuit Tree
BOOLR
Multisim
DCACLab
Pspice
Sketch, simulate, and share your circuits, entirely in your browser -- no install required.

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Which is more popular?
Based on our record, CircuitLab seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | circuitlab.com | opalstack.com |
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What each product offers, as listed by its team.


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An editorial look at what each product does well and who it suits.


No analysis of CircuitLab yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CircuitLab and Opalstack. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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...
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Recommendations tracked on public social media and blogs since March 2021.


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... Source: over 3 years ago
My go-to site for a quick simulation, and pretty schematics (that sounds almost NSFW) is circuitlab.com. Source: over 3 years ago
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... Source: almost 4 years ago
Tracking Opalstack since Sep 2023.
When comparing CircuitLab and Opalstack, you can also consider the following products.

Logisim is an educational tool for designing and simulating digital logic circuits.
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LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
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Multisim is industry standard SPICE simulation and circuit design software for analog, digital, and power electronics in education and research.
Compare Multisim to CircuitLab or Opalstack:

Electronic circuit simulator for STEM works online, Simulate and troubleshoot broken circuits in a rich simulation environment, easy to learn.
Compare DCACLab to CircuitLab or Opalstack: