Do schematic capture, Spice simulation, PCB Layout online for free, then order high quality PCBs.
EasyEDA: the one stop design shop for your electronics projects.
https://easyeda.com
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Fritzing is an open-source hardware initiative to support designers, artists, researchers and hobbyists to work creatively with interactive electronics. We are creating a software tool, a community website and services in the spirit of Processing and Arduino, fostering an ecosystem that allows users to document their prototypes, share them with others, teach electronics in a classroom, and layout and manufacture professional pcbs.
http://fritzing.org
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http://www.neave.com/anaglyph
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http://www.imaginationcubed.com
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http://www.bubbl.us/index.php?signout
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http://muro.deviantart.com
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http://canvastic.net/ultraprimary/net_up.html
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Create diagrams online & collaborate!
No download, no-install. Log in from anywhere & draw!
http://www.drawanywhere.com
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