MD5 File Comparison

• interface: graphical
• Linux / maybe Windows?
• Free Open Source

If you're using Ubuntu / Mint you will find this in the repository. Simply 'apt install gtkhash' and after installation the utility will appear in the menu under Accessories. This utility provides MD5, SHA1, and SHA256 within the same interface. It is extremely easy to use. Simply select the file and all hash sums appear on the interface. GTKHash has a web site with downloads available.

• interface: console
• Windows / Linux / UNIX
• Free - no spyware

Generate MD5 hashes of files (with progress indicator). It can do multiple files and pipe output to text file.

md5sums -u * > checksums.txt

homepage: http://www.pc-tools.net/win32/md5sums/

• interface: graphical
• Microsoft Windows
• unknown cost
• unknown safety
• warning: requires Microsoft .Net Framework

An interesting feature is the ability to compare two files at the same time.

homepage: http://www.derektrauger.com/Products/WindowsApplications/MD5FileComparisonTool.aspx

• interface: graphical
• Microsoft Windows
• free

MD5 signatures are 32 hex digit strings derived from (binary) files by a highly specific algorithm. Files that differ only slightly have completely different signatures. Also, it is really extremely unlikely that two different files have the same signatures.

homepage: http://stols.com/net/md5pack.html

• interface: graphical
• Microsoft Windows
• free
• be careful, if you accept certain dialogs during install you get payloads of unwanted 3rd party apps (PUP).

Does not require .Net which is good. The bad is the program is poorly designed and although it does what it claims, it is not convenient to use to create checksum text files nor is it that useful for comparing files. It seems to lose its path when comparing files from different locations. Also, the installer wants you to install toolbars and other unnecessary unrelated software, unless you decline several agreements.

homepage: http://www.keylack.com/free-md5-sha1-verifier.html