This tool calculates MD5 hash for free.

One of the most stand out features of this application is its unique ability to automatically copy the generated MD5 hash to your clipboard - this eliminates the need for any extra copy operations, making your workflow much simpler and efficient.
SX MD5 Hash Generator is packed with other useful features and benefits, such as instant MD5 checksum generation, file or text computation, progress bar statuses, drag-and-drop support for file selection, simple and straightforward usage instructions for all users, and it's fully portable - no additional components or software requirements (even on 32 bit and 64 bit platforms) from Windows XP to Windows 10 are needed.
Overall, SX MD5 Hash Generator is a fantastic software solution for efficient MD5 hashing needs.
Version 2.0: Mega 2016 release to support for new Windows 10 version.