Fast, highly optimized implementation of popular checksum algorithms: CRC32, CRC16, CRC16C (CRC-CCITT). The library allows to calculate checksums for files, memory blocks, strings, streaming data. C/C++, VB examples. [Shareware]

Editor for Windows XP icons, cursors, and 32-bit bitmaps with full alpha channel. Offers built-in screen-capture and image extraction tools.

Free file checksum generation and verification utility. Supports .MD5 and .SFV file formats.

Calculator to compute message digests, checksums and HMACs for files, as well as for text and hex strings.

A text editor that allows to create, edit, read and e-mail plain or encrypted text files. Uses BlowFish, Xor, 3Des and Rijndael encryption algorithms to scramble the text.