››› Screenshot


Free Analog Circuit Simulation


SPICE OPUS was developed by

EDA Group, Faculty of Electrical Engineering, University of Ljubljana.

Members of the SPICE OPUS team

Tadej Tuma (head),
Janez Puhan (algorithm developement, bughunt, and optimization),
Árpád Bűrmen (algorithm developement and GUI integration),
Jernej Olenšek (global optimization algorithms),
Iztok Fajfar (Optimization GUI).

E-mail Developers

You have a bug report? Send it to the SPICE OPUS development team: spice_developers@fides.fe.uni-lj.si. Add a detailed description of the bug along with the netlist and instructions that recreate the bug. Add the description of your platform (hardware, OS, OS version). Linux users should also include the kernel version they are using along with the distribution version.

Subscribe and post to the mail-list

We maintain an open public mail-list for SPICE OPUS users: spice_users@fides.fe.uni-lj.si. Anyone can subscribe and unsubscribe using the WWW gateway or by sending an email to spice_users-request@fides.fe.uni-lj.si with a GNU Mailman command in the body of the message. To subscribe use:

subscribe [password] [digest-option] [address=< address >]

Your password must be given to unsubscribe or change your options. When you subscribe to the list, you'll be reminded of your password periodically. 'digest-option' may be either: 'nodigest' or 'digest' (no quotes!). If you wish to subscribe an address other than the address you send this request from, you may specify "address = < email address >" (no brackets around the email address, no quotes!). To unsubscribe use:

unsubscribe < password > [address]

Your password must match the one you gave when you subscribed. If you are trying to unsubscribe from a different address than the one you subscribed from, you may specify it in the 'address' field. To request a help message, that will be set to you by mail use:


This list is for your discussions on SPICE. Developers of SPICE OPUS are reading the messages but since a day has only 24 hours they can't answer all questions. Maybe someone else on the list will answer them.

The announce-list

The spice_announce list is the list of users that want to be notified of new SPICE OPUS releases. Users get subscribed if they check the option "Put me on the SPICE OPUS announcements mailing list" when they register and download SPICE OPUS.