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CircuitSim vs SimulIDE: catalog facts
CircuitSim	SimulIDE
Free Free and open source under the Apache 2.0 licence.	Free Free and open source under the AGPLv3 licence.
Linux	Linux
Simulation updates live while you edit the circuit Covers both analog values and basic logic gates	Simulates PIC, AVR and Arduino microcontrollers alongside analog and digital parts Built-in code editor and debugger with breakpoints
Small project with few contributors Only basic digital logic support	Aimed at learning and hobby work rather than professional circuit design Debugging is described as basic
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: AGPL-3.0
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.