Free Hash, Checksum, Message Digest Calculation and Creation

Quick easy Windows application for most users
SlavaSoft HashCalc
A fast and easy-to-use calculator that allows to compute message digests, checksums and HMACs for files, as well as for text and hex strings. It offers a choice of 13 of the most popular hash and checksum algorithms for calculations.


Command line application for advanced usage
SlavaSoft FSUM command line utility
A fast and handy command line utility for file integrity verification. It offers a choice of 13 of the most popular hash and checksum functions for file message digest and checksum calculation.


Advanced Windows application for more experienced users
Fsum Frontend
Fsum Frontend is a free and easy-to-use tool that allows to compute message digests, checksums and HMACs for files and text strings. It supports drag-and-drop and you can handle multiple files at once. The checksum generated can be used to verify the integrity of the files.
It supports 96 algorithms