Circuit Lab
Build and simulate basic electronic circuits. This tool runs entirely in your browser: nothing you paste or upload leaves your device.
What Circuit Lab does
Circuit Lab sits in the Science section of Toolbox, alongside 6 related tools. It opens instantly at https://jsglobe.com/apps/circuit-lab/, keeps working offline once the page has loaded, and stores anything you save in this browser rather than on a server.
Also useful for: circuit, electronics, simulator, resistor, capacitor, spice, ohm, science.
How it works
- Open the page and start using it. There is no account, no sign up and no paywall.
- Everything runs as JavaScript in your own browser, so your input never reaches a server.
- Settings and saved work live in this browser and can be cleared at any time.
- The whole site is open source at https://github.com/samalstudios/jsglobe.
Questions
- Is Circuit Lab free?
- Yes. Circuit Lab is free to use, with no account, no sign up and no usage limits.
- Does Circuit Lab upload my data?
- No. It runs entirely in your browser, so the text, files and images you give it never leave your device.
- Does Circuit Lab work offline?
- Yes. Once the page has loaded, the tool keeps working without a connection.
- Where can I find the source?
- Toolbox is open source at https://github.com/samalstudios/jsglobe.
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- Optics Lab - Lenses, mirrors and prisms with real ray tracing