Toolsley CRC MultiTool!

HashMyFiles is small utility that allows you to calculate the MD5 and SHA1 hashes of one or more files in your system.

RapidCRC is an open source CRC/MD5/SHA hashing program.

QuickSFV integrates into the Windows Explorer shell and makes it very easy to verify files. Just double-click on the SFV file and QuickSFV does the rest. QuickSFV also understands several other file verification formats including CRC, CSV, and CKZ. For even quicker verification of SFV files, QuickSFV remembers which files have been previously verified and will skip them in future checks. You can always tell QuickSFV to go back and verify all files again just to be sure.

CHK is an advanced checksum utility — a simple application designed to help you verify the integrity of your files, find duplicates and much more!Main Features

FileVerifier++ is a Windows application for verifying the integrity of files. FileVerifier supports various algorithms by means of dynamically loadable hash libraries. It uses the Windows API and doesn't have any dependencies other than what comes with Windows (WinFVC excluded).

MD5 & SHA Checksum Utility is a tool that allows you to generate CRC32, MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of single or multiple files. You can also verify hashes with the matching file to ensure the file integrity is correct.

cfv is a utility to both test and create .sfv, .csv, .crc, .md5(sfv-like), md5sum, bsd md5, sha1sum, and .torrent files. These files are commonly used to ensure the correct retrieval or storage of data.

This tool will generate hash strings to validate directories and files, in the same vein as hashdeep or fciv. I wrote it after giving up trying to find a decent tool to validate my backups. Although many tools like the two previously mentioned will generate hash files for directory trees, none seem to support maintaining those files as the trees change over time. Hash has many option to keeps the hash files, and the files the hashes were generated from, in sync.

A file integrity verification tool:Use it to make sure files copied to CD-ROM are bit-perfect copies,Use it to make sure backups copied from one drive to another are just right,Use it to make sure files haven’t been changed or damaged over time.Multi-threaded, so your extra CPU cores get used when scanning multiple files and work gets done faster.Happy with Unicode file names, so it doesn’t fail when you’re using it on files named in Japanese, Hebrew, Chinese, or any other language.Supports multiple checksum routines (hashes), like MD5, SHA1, CRC32, RIPEMD and others.Supports recursive directory scanning.Supports Very Big Files — If it’s on your hard drive, ExactFile can handle it.Does everything popular file summer utilities do, like fsum, md5sum, sha1sum, sfv, etc, but better!Compatible with popular file checksum digest formats.For Windows 2000, XP, Vista, and 7.GUI. Easy to use to get checksums for individual files, create checksum digests, and test checksum digests. Does not require the console version or any external DLLs. »

checkSum+ will handle md5, sfv & cvs files (please, do not confuse with cvs files, since these can be any kind of database file).These files store "checksum" information about files, and will allow this and other applications know if the related files are or not corrupted. You will find oftenly these files in USENET newsgroups and other places, where there is a risk of data loss.So, the original distributor of some files, usually *large* files, will create and also distribute some of these files, so the final recipient of such files can check for the integrity of these. This is very useful, eg, for multi-segment files. When you attempt to join them, if one of them is corrupted, the attempt will simply fail, and you won't know what segment is corrupted. But using these files (md5, sfv or cvs), you can know what is the bad file, and re-download it again, instead of re-downloading all the stuff. »

dsSHA is a SHA1 hash-calculator. The beauty of this is its simplicity, tiny size (7KB) and ease of use. There is no interface: just drag and drop a file on to this program or its shortcut and the SHA1 value of the file appears in a message box with options to copy the value to the clipboard, copy to a text file or just quit.

AmoK SFV Utility is a small tool for creating and checking .sfv files. SFV stands for "Simple File Verification" and is a standard for describing a checksum for a file list. With a sfv file you can easily check if a download (of multiple files) is complete or if files are missing or files are damaged.

Overview:

EF CheckSum Manager is a program designed for the integrity examination of files on the standard formats SFV, MD5, SHA1, SHA256 and SHA512. They can verify existing checksums or create new checksum for your important data. The EF CheckSum Manager is easy to use and much fast, supports the recursive processing of file structures, works up to whole drives. You have the choice to let only one checksum file for all files, one per folder or to produce for each file separate checksums.