QuickMD5 is a tool for quickly comparing whether two files are identical—for instance, to see whether two versions of a file are different. The “MD5 checksum” is a funny string of letters (like those shown below). Even if two files are very close, they are overwhelmingly likely to have different MD5 checksums.

QuickMD5 doesn't care if you're comparing images, text documents, movies, etc. It's all the same.

Screenshot of QuickMD5


QuickMD5 is created with the Qt application framework, released under the GNU Public License. That means, among other things, that you are free to download it and use it, but not to re-sell it.

Qt is a cross-platform framework, so there is the possibility for using this on Mac OS X, Linux, etc. Right now I only have Windows executables because I only have a Windows machine. Perhaps some do-gooder will build versions for other operating systems and send them to me.

Executable Files

QuickMD5 for Windows

Source code

Download the source as a zip file

Or if you're feeling geeky:

git clone

I build in Windows with this, which assumes that Qt is installed and visible in your path:

qmake -config release

Of course your system would have something different from “mingw32-make”—probably just “make”—if you are not building from Windows using MinGW.

All contents copyright © 2018 Adam Baker, except where otherwise noted.