eSim is an open source EDA tool for circuit design, simulation, analysis and PCB design, developed by FOSSEE Team at IIT Bombay. It is an integrated tool build using open source softwares such as KiCad, Ngspice and GHDL.
eSim is released for the following operating systems:
- Ubuntu 24.04 LTS, 25.04 and 26.04 LTS — native installer
- Microsoft Windows 10 and 11
Ubuntu quick install — paste this in a terminal:
curl -fsSL https://raw.githubusercontent.com/VaradhaCodes/eSim/dev/Ubuntu/bootstrap.sh | bash(Downloads eSim to ~/eSim and runs the installer. Re-run the same line to
update; add -s -- --uninstall to remove it. Upgrading from an older eSim
2.x? Same line — the installer sweeps old-eSim artifacts and installs
cleanly on top. Prefer a manual download? The zip flow in
INSTALL runs the exact same installer.)
Please refer to downloads for installers and guidelines.
See INSTALL for detailed installation instructions for all platforms.
- An open-source EDA tool.
- Perform Circuit Design.
- Perform Simulation.
- Perform Layout Design.
- Model and Subcircuit builder.
- Support for Mixed-Signal Simulations including Microcontrollers.
To know everything about eSim, how it works and it's feature please download the manual from here
For any queries regarding eSim please write us on at this email address.
Other Contact Details are available here.
Please refer here for further details.
It is developed by FOSSEE Team at IIT Bombay and is released under GNU GPL License.