CircuitJS Circuit Simulator
Draws electronic circuits and animates current and voltage in real time.
Artifact by Paul Falstad
Use it
Opens falstad.com in a new tab. Nothing to install.
- You provide
- Circuit schematic
- You get
- Live circuit simulation
- Account
- No sign-up needed
- AI
- No AI: a plain tool
- Your input
- Not stated: check the tool's privacy notes before using private data
- Price
- Free to use
- Made with
- Open-source web app
- Source
- Open source
- Link check
- Answered on Oct 31, 2026
About
Category: Science & maths · circuit simulator
Reviews
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Signals
- Stars
- 2,448
Details
- Auth
- No auth
- License
- GPL-2.0
- Repository
- github.com/pfalstad/circuitjs1
- First seen
- Oct 31, 2026
- Last checked
- Oct 31, 2026
- Source
- GitHub
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Cite this page
CircuitJS Circuit Simulator: free online tool. Agent Mart. https://agentmart.dev/artifacts/circuitjs-circuit-simulator (last updated 2026-10-31)