CircuitLab
Extension Actions
- Live on Store
Schematic editor and circuit simulator.
Build and test circuits right in your browser!
* Design with our easy-to-use schematic editor.
* Accurate analysis (DC, AC & more) in seconds.
* Beautiful schematic printouts (PDF) and images (PNG).
* Share a live circuit URL so others can simulate and edit your circuit.
Easy-wire mode lets you connect elements with fewer clicks and less frustration.
Cross-window copy/paste lets you easily explore and re-mix parts of public circuits from the CircuitLab community.
Mixed-mode circuit simulation lets you simulate analog and digital components side-by-side.
SPICE-like component models give you accurate results for nonlinear circuit effects.
Human-friendly formats let you enter and display values concisely, just like you would on a paper schematic.
Unit-aware expression evaluation lets you plot arbitrary signals of interest, such as differential signals or power dissipation.
In-browser simulation and plotting lets you design and analyze faster, making sure your circuit works before ever picking up a soldering iron.
Unique circuit URLs let you easily share your work or ask for help online.
Advanced simulation capabilities include frequency-domain (small signal) simulation, stepping circuit parameters through a range, arbitrary Laplace transfer function blocks, and more.
Common sense schematics let you name a node "+5V" and know that the simulator will do the right thing automatically, keeping your schematics compact and elegant.
Quick-access build box lets you draw basic circuit primitives quickly, while allowing access to a wide assortment of non-linear elements, feedback elements, digital / mixed-mode components, and custom drawing tools.
For more information, visit https://www.circuitlab.com/
Latest reviews
- R B (dsblg15321)
- Started the tryout, just to see if it is really worth buying. Then in the middle of trying it stops working and requires a paid membership to continue - pretty bad idea - will go with another supplier.
- Paul Tran
- The app sucks, I can only experiment for like 30 seconds before they locked the workspace, requiring me to sign up and other kinds of stuff. Can't even do a simple experiment. Don't waste your time by installing this extension.
- Bogdan Ristić
- waste of time
- Thomas J. Scharmann
- There is no ad based free version. I deleted my account since there once was such a version. I guess ads do not pay the bills. Too bad. The app is a great tool but not for the cost. Goodbye Circuit-Lab!
- Jon Randall
- Scam!
- Stephen Gunnell
- Ambush registration after a few minutes. Unable to even evaluate it. No CMOS part library.
- Micah Marsden
- These people have scammed users for thousands of wasted hours. Either tell people that you are going to charge them on the spot or don't charge at all. Hooking people after they've invested time into something should be illegal - if anything I will consort to calling you a waste of skin, CircuitLab team.
- Jeff Berezin (embeddedprogrammer)
- worked fine but tried to charge me and then quit working. wouldn't have minded if they told be that up front but this was a surprise after investing my time starting a circuit.
- Jeff
- They said it was free so I signed up, but its not free. I spent an hour making a circuit. Once I was almost done they locked me out of my drawing and required money. They wasted my time and effort.
- Benedikt
- Having to register for a silly 10 minute demo is ridiculous.
- Sean Woodgate
- Spent almost an hour designing a circuit for presentation using the trial format (No saving), then without warning it blocks the circuit from view and requests I make an account. Honestly, give people warning that there is a time limit. I used the software many times when it was a free editor years ago and I am honestly disgusted with the approach these guys take. The simulation ability is garbage anyways, dont waste your money folks it looks nice but thats where it ends.
- Christopher “CJ” Jones
- Starts off free, then forces you to register, then tells you, you have to pay.
- SciTubeHD
- Nice interface, but garbage. I spent 1 hour drawing a circuit, and then it kicked me out saying I needed a payed membership. It would not let me recover my work.
- Joe Schmidt
- only 10-15 min to try it? I'm not signing up/giving my info away to another site... glad I came to the reviews, looks way overpriced for a hobby user. Time to look for something else.
- Steven Uspensky
- Gave it a try, spent a bit of time putting the stuff together and learning how it works. It forced me to get registered after half an hour - Ok. Then bang! Pay $26 if you want to continue on! Is it just an hour trial? Why didn't they tell me at the start? I don't even know if it works for me yet.
- Dennis F
- Living on a fixed income I cannot afford what looks to be a very good app.
- Anton Kratenok
- Remove it. It's not free and overpriced.
- Matt Clements (nightfly)
- $26/month for hobbyist? Ridiculous. Pro license is only $10 more- don't get the pricing at all. Hobbyist should be like $5 month or $5 for 40 hours or something. The app is nice - has some usability/user interface issues but workable. Licensing is just nuts. Moving on.
- lenny greifburg
- Yeah, no warning that a registration is required but provides no benefit. Basically just giving them your contact info. Free plan provides no benefit - paid is waaaaay too expensive.
- Seth
- Asks you to pay up right off the bat despite not being advertised as a paid product.
- Chris toph
- Too expensive!
- Karen Adler
- not free!
- Raymond Lewis
- Not free.
- Marek Kapryński
- Just an add of an expensive application...
- Scotty Scott
- timed trial, or you have tp pay a fortune
- AdMan The “ATLR” Lab Rat
- Bait and switch
- Leon Riege
- gr8
- Pichet Tipyotin (Pt_G1)
- Thank you very much.
- Lucio Alessandroni
- Is just a link to a web page is not a proper extension.
- Anonymous
- not free
- Martin vega
- bad
- Brent LeBlanc
- How dare these people take THEIR time and build SOMETHING on their own and expect to get paid on it. What do you think this is, 1950?
- Ash Kechum
- fake don't download
- Damo
- cut me off making my first circuit. not an app, just an ad. boo
- Bruce Sha
- OBS You can register as student with an active email! other plans are insane! and there is no free alternative! if you want to save or build a large circuit you have to pay!! which they don't give darn to tell you prior to registration!
- Joanna G
- This is crippleware and definitely NOT free. You will have about 10 to 15 minutes (before it times out) to evaluate it, AND annoying ads, AND severely crippled options. If you want it to work, you have to pay for a licence (waaaay overpriced, too). A definite pass, IMHO.
- Adria sendra andres
- Only a demo
- Serra McCall
- App seems decent until it paywalls you,
- Amar Mousa
- i ever never seen like this app, you are rely smart gay . i spent half an hour for working and everytime the software needs to pay it. i dont know why but i hate this way to deal with the people.
- Shannon D'Angelo
- Not bad at all. Would prefer something built more to suit automotive applications. Uninstalled just because it doesn't really suit my needs although it was a blast to play with!!
- Shanno G
- Cool app
- piero belforte
- Poor simulation engine compared to standard Spice. Good UI.NOT FREE.
- Kris Amicus
- I needed more time to review the product
- JP
- decent
- matthias lichtenegger
- silly demo, program WAS good before the decide to make money
- Jose Benitez
- Love this app. Maybe it cab be a packed app for the desktop
- Alexey Ermilov
- Excellent!
- Jesus Marcano
- Free isn't really free
- dhawala ranaweera
- sorry not gonna buy this
- Cory Robertson
- its a paid program disguised by a trial