hash

PeaZip is an open source file and archive manager: cross platform, available as portable and installable software for 32 and 64 bit Windows (9x, 2k, XP, Vista) and Linux (PeaZip is a desktop neutral application).

RapidCRC is an open source CRC/MD5/SHA hashing program. I've extended the current unicode support to allow writing of unicode .sfv/.md5/.sha1/.sha256/.sha512 files, which can be turned on/off through the settings page.

HashMyFiles is small utility that allows you to calculate the MD5 and SHA1 hashes of one or more files in your system. You can easily copy the MD5/SHA1 hashes list into the clipboard, or save them into text/html/xml file. HashMyFiles can also be launched from the context menu of Windows Explorer, and display the MD5/SHA1 hashes of the selected file or folder.

IgorWare Hasher is a free SHA-1, MD5 and CRC32 hash generator for Windows, both 64bit and 32bit version is available. As all my programs this one is also portable so there is no installation and does NOT require additional dll libraries or .Net installation.

NoVirusThanks MD5 Checksum Tool is a free and easy to use application designed to allow users to generate the file checksum (MD5/SHA1 hash) of a file or string. It can be very useful to check if an executable file is legit, in other words, if it is the official release from the offical author. The hashing algorithms supported are: MD5, SHA1, SHA256, SHA384 and SHA512.

HashTab is a Windows shell extension which adds a tab called "File Hashes" to the Windows Explorer file properties. The tab contains the MD5, SHA1 and CRC-32 file hashes. These are common hashes that are used to verify the integrity and authenticity of files.

It provides Windows NT4.0/2000/XP/2003/Vista/2008 with full access to Linux Ext2 volumes (read access and write access). This may be useful if you have installed both Windows and Linux as a dual boot environment on your computer. The "Ext2 Installable File System for Windows" software is freeware.

Febooti fileTweak Hash & CRC is freeware cryptographic hash value calculator that allows computing MD5, SHA-1, CRC32 and other popular hash checksums of files. With Febooti fileTweak Hash & CRC it is possible to compute most popular file hash checksums (such as MD5, CRC32, SHA-1 and other) in order to verify file integrity (if cryptographic hash value is provided) or to supplement file with checksum, thus creating a possibility to verify the file upon further need.

With TurboSFV, you can calculate checksums (hash values) for your files. At a later time, you can validate the hash values to ensure, that the content of the files has not been changed.

New version! - VSCryptoHash is a cryptographic hash calculation software. Simply drag and drop files (or type the text) in this calculator and hash string for the files (or for entered text) will be immediately displayed. Great tool for network administrators and webmasters to calculate file control sums.

Native 64bit Shell Extension for 64 bit OS.Iside is a tool to confront file contents (text or binary) to answer the question: "Are these two files actually the same?", or, in other words, "Do these two files contain exactly the same bytes?" Iside is a hash function or message digest computing tool. Its main features are:

RHash (Recursive Hasher) is a console utility for computing and verifying hash sums of files. It supports CRC32, MD4, MD5, SHA1, SHA256, SHA512, Tiger, DC++ TTH, BitTorrent BTIH, ED2K, AICH, GOST R 34.11-94, RIPEMD-160, HAS-160, EDON-R 256/512, Whirlpool and Snefru-128/256 algorithms. Hash sums are used to ensure and verify integrity of large volumes of data for a long-term storing or transferring.

CHK is an advanced checksum utility. With this simple and intuitive tool you can easily find duplicate files on your computer, verify downloaded files from the Internet and sign your own files to ensure the integrity!

This file integrity checker uses Alternate Data Streams to store the hashes of your files. So, it only works on NTFS volumes. With that, you can rename, copy or move your files (to another NTFS volume) without losing the hashes, and without needing to do anything else.

Quick Checksum Verifier checks file integrity by secure time proven algorithms like MD5 and SHA-1. You can easily create checksums of files and verify their integrity in the future. The operation is very easy, just two steps. Load the file and paste the predefined checksum.

New version! - QuickSFV was designed with one goal... to be quick!  Existing SFV file verification programs were slow and cumbersome to use.  Most users need to verify files and the quicker, the better.  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.

The HashCheck Shell Extension makes it easy for you to calculate and verify checksums (including hashes) from Windows Explorer. First, HashCheck can process and verify the checksums/hashes stored in checksum files--these are files with a .sfv, .md4, .md5, or .sha1 file extension. Just double-click on the checksum file, and HashCheck will check the actual checksums of the listed files against those specified in the checksum file.

MD5 for Win32 introduced the "right-click and hash" interface to calculate a message digest without having to open a separate program. digestIT 2003 took it further by adding multiple file support, integrated copying and saving, and support for the SHA-1 message digest algorithm.