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Interactive schematic circuit simulator with live electron flow animations, component toggles, and real-time Ohm's Law calculations.
About this tool
Interactive schematic circuit simulator with live electron flow animations, component toggles, and real-time Ohm's Law calculations.
Electric Circuit Builder is a free science tool that runs entirely in your browser — nothing to install, no account to create, and your data never leaves your device. Open the page, add your input, and get a clean, copy-ready result in seconds.
Open Electric Circuit Builder on AltFTool — it loads instantly in your browser.
Add your input to the workspace.
Adjust the options until the result looks right.
Copy or download the output and put it to work.
A focused workspace for one-off content, data, or planning jobs — open it, use it, done.
Start with a rough input and iterate until the result matches exactly what you need.
Copy or download the output for your project, document, or daily workflow.
Yes — Electric Circuit Builder is completely free on AltFTool, with no signup, no trial limits, and no hidden costs.
Yes. Electric Circuit Builder runs in your browser, so what you enter or upload stays on your device instead of being sent to a server.
Interactive schematic circuit simulator with live electron flow animations, component toggles, and real-time Ohm's Law calculations. It's built for quick, everyday science tasks with results you can copy or download straight away.
Yes — Electric Circuit Builder works in any modern browser, on desktop, tablet, and mobile, with the same features everywhere.