kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
rkt
GlusterFS
Apache Karaf
Apache ServiceMix
Apache Mesos
REX-Ray
Sheepdog
Apache Edgent
kdiff3
rktBeyond Compare - Beyond Compare allows you to compare files and folders.
GlusterFS - GlusterFS is a scale-out network-attached storage file system.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Apache Karaf - Apache Karaf is a lightweight, modern and polymorphic container powered by OSGi.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
Apache ServiceMix - Apache ServiceMix is an open source ESB that combines the functionality of a Service Oriented Architecture and the modularity.