The BrickOwl/BrickLink synchronization software, BrickSync, is now open source! http://www.bricksync.net/

Restrictions related to registration have been removed from the 1.7.1 builds (sorry, can't build OSX binaries, I don't have access to an OSX box...).

Direct link to the source code: http://www.bricksync.net/bricksync-src.tar.gz

It's being released under a very permissible attribution license, more precisely:

• This software is provided 'as-is', without any express or implied
• warranty. In no event will the authors be held liable for any damages
• arising from the use of this software.
• Permission is granted to anyone to use this software for any purpose,
• including commercial applications, and to alter it and redistribute it
• freely, subject to the following restrictions:
• 1. The origin of this software must not be misrepresented; you must not
• claim that you wrote the original software. If you use this software
• in a product, an acknowledgment in the product documentation would be
• appreciated but is not required.
• 1. Altered source versions must be plainly marked as such, and must not be
• misrepresented as being the original software.
• 1. This notice may not be removed or altered from any source distribution.

The source code is written in C with GNUisms, therefore it will compile with GCC, mingw64, Clang or the Intel Compiler. The only dependency is OpenSSL for socket encryption. The source code includes a build-win64 subdirectory with headers and DLLs for OpenSSL on Windows; the code therefore will build with a plain freshly installed mingw64 (select x86-64 as target when installing mingw64, not i686).

Direct link to the mingw64 installer (mingw being the famous GCC compiler ported to Windows): https://sourceforge.net/projects/mingw-w64/files/Toolchains targetting Win32/Personal Builds/mingw-builds/installer/mingw-w64-install.exe/download You'll have to edit the compile-win64.bat script to set the PATH environment variable to the /bin subdirectory of wherever you installed mingw64.

Happy building, and coding :)