http://fritzing.org/download/?donation=0 Installing Fritzing Please make sure your system satisfies one of these requirements: Windows - XP and up Mac - OSX 10.7 and up, though 10.6 might work too Linux - a fairly recent linux distro with libc >= 2.6 Start downloading the Fritzing package that's right for you. Unzip your Fritzing folder somewhere convenient on your hard drive. This may also be a good time for you to create a shortcut to the Fritzing application. A free unzipping program can be found here, should you need it. If you are updating your release of Fritzing, your custom files (parts and bins) are not stored with the application, so they will not be destroyed if you delete the older version of the Fritzing application folder. To start Fritzing: on Windows: double-click fritzing.exe on Mac: double-click the Fritzing application on Linux: double-click Fritzing, or try ./Fritzing in your shell window If you experience problems, please try downloading again. This often helps. If it doesn't, have a look at our forums. Mac notes Recent versions of OS X do not allow "unverified" software to be launched directly. In order to run Fritzing, you will need to either: right-click the Fritzing icon and select "Open" in the warning dialog, click "Open" or, to get rid of the warning permanently: go to the System Preferences open the Security & Privacy page unlock it by clicking the lock in the lower left corner set it to allow app downloads from anywhere Linux notes This binary release has been built and tested under Ubuntu 12.04 LTS. Distros for other flavors of linux can be found at openSUSE's repository, at Heinervdm's openSUSE repo; including a one-click download for openSUSE. Search our forum for even more. Fedora users can install Fritzing with 'yum install fritzing'. We heartily thank openSUSE, Thomas Zimmermann, Debian.org, Bruno Canning, the Fedora Project, Ed Marshall, and other people and organizations for making these available. (But please be aware we have not tested these builds.)