LibrePCB - LibrePCB is a free EDA software to develop printed circuit boards.
KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
XCircuit - XCircuit: Home Page
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
EasyEDA - EasyEDA - Web-based EDA suite; runs in browser.
Splan - sPlan is a software to design your schematic circuit diagrams.