Hashtoolbox is a free software utility to calculate hashes for different files on your computer, hashtoolbox is able to calculate files with common hashing algorithms such as: MD4, MD5, SHA, SHA-256 and SHA-512. This utility aims to make it quick and easy to grab hashes for your files for all popular hash types. In addition the hashtoolbox software is opensource and can help you to verify downloaded files to ensure they do not contain any changes. When downloads get hijacked by malicious adversaries often the file is modified to include malware such as Trojans, spyware, rootkits and other threats. Trusted download portals often include the hashes for the original files, using a hash calculator such as hashtoolbox you can verify the hash of the downloaded file and compare it with the one you have downloaded making sure you have a safe corrupted version.