Portable Winmerge 2.10.2 : An Open Source File Compare and Merging Tool
Portable Free Apps : Portable Winmerge 2.10.2 : An Open Source File Compare and Merging Tool
Portable Winmerge 2.10.2 : An Open Source File Compare and Merging Tool
If you don’t want to pay UltraCompare or Beyond Compare, so you can try Winmerge.
WinMerge is an Open Source (GPL) visual text file differencing and merging tool for Windows. It is highly useful for determining what has changed between project versions, and then merging changes between versions.