OpenHashTab 3.0.5

OpenHashTab is an Open Source shell extension for conveniently calculating and checking file hashes from file properties.

OpenHashTab is designed to facilitate the efficient calculation and verification of hashes integrating within the Properties section of the right-click context menu. Most of the included actions are straightforward and obvious. OpenHashTab's hash list supports the following:

Double-click hash to copy it
Double-click name or algorithm to copy the line in sum file format
Select (possibly multiple), then right-click to copy all columns separated by tabs
The counters next to the status text are in the format (match/mismatch/nothing to check against/error)

OpenHashTab Features:

Support for 14 different selectable algorithms, see Algorithms
md5sum / sha1sum / sha256sum / etc.. compatibility for checking and exporting hashes
Easy to use checker and single-click sum file export to clipboard or file
High-performance hash calculation
Native Windows appearance
Long path support

Similar:
How to Add File Hash to the Context Menu
Disable or Enable Context Menu Items With ShellExView
How to Delete, Add, and Edit Context Menu Items

OpenHashTab 3.0.5