Here you can download pre-compiled Cryptonite binaries for Windows and OS X.
NOTE: these are all 64bit binaries, Cryptonite does not support 32bit systems.
NEWS: new Windows executables have been released with sync fix included!
Client Version: 0.1.2.0
Wallet Version: 10200
Protocol Version: 10100
Linux users will have to build their own binaries from the source on github.
INFORMATION: cryptonite-qt is the graphical Cryptonite wallet and cryptonited is the command line daemon with RPC support. If you don't understand the difference just download cryptonite-qt.