This tool generate the MD5 hash of a string.

For security purpose, this tool is written in JavaScript. The entire process runs on your computer, inside your browser. The generated hashes do not travel over the Internet and are not known by the server.

MD5 (Message-Digest algorithm 5) is a cryptographic hash function with a 128-bit hash value. It is generally used in a wide variety of security applications, and is also often used to check the integrity of files. It was designed by Ron Rivest in 1991. The MD5 algorithm takes as input, a message of arbitrary length, and produces as output, a 128-bit ‘fingerprint’ or ‘message digest’ of the input. The MD5 algorithm is intended for digital signature applications, where a large file must be "compressed" in a secure manner before being encrypted with a private (secret) key under a public-key cryptosystem such as RSA or PGP.

“A hash function is any well-defined procedure or mathematical function which converts a large, possibly variable-sized amount of data into a small datum, usually a single integer that may serve as an index into an array”. MD5 digests or hash generators are widely used in the world of software, in order to ensure that any transferred file has arrived intact. Many servers, often provide a pre-generated MD5 checksum for a file, so that it can be compared with the checksum of the file that is being transferred or downloaded.

The MD5 hash-generator is useful for programming – that is, checking passwords and creating cache file names. Cache file names help to locate files without remembering where exactly they are located, by making it easy for users to locate a file by name. The MD5 hash generator provides a wide choice of security options which protect password files and produce convenient cache names for files.

In this hash-generator, a "word" is a 32-bit quantity and a "byte" is an eight-bit quantity. The 128-bit MD5 hashes are typically represented as a sequence of 32 hexadecimal digits. Any small alteration in the message will result in an entirely different MD5 hash output. The MD5 Hash Generator is an easy, and highly secure way of verifying the integrity of files. It is also the most convenient web tool for storing and checking of passwords, not to mention how helpful it proves to be for programming purposes. The compressed ‘message digests’ or hash value for any given message makes the authentication of files simpler, and the identification of accidental changes in data easier during programming or any other such function. It is an effective web tool that helps all users to be sure of the security of files that they are downloading from the internet. Moreover, it is extremely simple to use, and not to mention, helpful. So for those looking for an effective file security system, the MD5 HASH Generator is definitely a wise option!