This is easily one of the more useful freeware file encryption programs around. Kruptos 2's file menu and icon interface are the picture of simplicity. Encryption is almost effortless. You can drag and drop files to the Kruptos 2 window, and the latest version adds support for dragging and dropping folders.
The encryption algorithm is Blowfish 128-bit or 256-bit, and fast. A key feature obfuscates file names but leaves folder names unaltered. The program offers a feature to see original file names with the proper password, but it is invoked one file at a time. However, Windows integration means you can perform all functions from your context menu.
Unlike many similar programs, files in nested folders are all quickly encrypted as individual files. With a single click you can decrypt a file and edit it, and the file re-encrypts on close. Self-extracting encrypted files are created with a minimum of fuss. The Shred function deletes original files to DOD standards. The program does offer a nag screen for donations, but only once. Kruptos2, with all its features, is what every user needing simple file encryption desires.