LibrePCB - LibrePCB is a free EDA software to develop printed circuit boards.
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
FidoCADJ - FidoCadJ is a free user-friendly vector graphic editor for Mac OS X, Linux, Windows and Android.
Splan - sPlan is a software to design your schematic circuit diagrams.
Autodesk EAGLE - Autodesk EAGLE is an electronic design automation (EDA) software.