allSnap is a program for the Windows operating system, which causes windows to magnetically snap into neatly arranged positions when being moved.

allSnap was created no later than 2002 and originally supported Windows 95. It was maintained at least until June of 2010 when version "1.50 beta" was released at allsnap.org.

It never gained complete support for Windows 10, but was open sourced in 2018. This is a fork of that open source release, intended to support Windows 10.