MajorGeeks - File Checksum Calculator is a freeware utility for generating and verifying cryptographic hashes in MD5, SHA-1, and SHA-256 - https://www.majorgeeks.com/files/details/file_checksum_calculator.html | Facebook
Hash Calculator Online — Promotional Ad Design
Online SHA 256 Hash Calculator
hash-calculator/HashCalculator.java at master · dhruvasagar/hash-calculator · GitHub