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description=Create MD5 hash of a string with this online tool. Take a string of any length and encode it into a 128-bit fingerprint.;

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Text of the page (random words):
free string to md5 hash generator online w3docs w3docs libri imparare html impara css imparare javascript imparare git imparare java imparare php imparare python corsi quiz esercizi snippet strumenti general tools html editor password generator html encoder code diff json beautifier tutti i 13 color tools color picker color converter color mixer color hex colors hsl tutti i 10 string tools string length calculator md5 hash generator sha256 hash generator string reverse url encoder tutti i 19 code formatters javascript formatter css formatter html formatter json formatter php formatter cerca in w3docs k it english en deutsch de русский ru français fr español es português pt italiano it accedi home tools string functions string to md5 hash generator string functions string to md5 hash generator create an md5 hash of any string useful for cache busting content checksums and quick fingerprints source result clear copy submit about md5 hashing this tool computes the md5 hash of any text you enter a 128 bit digest always rendered as 32 lowercase hexadecimal characters no matter how long or short the input is md5 is defined in rfc 1321 feed it a byte string of any length and it deterministically produces the same fixed size digest every time with even a one character change producing a completely different output the output format matches php s md5 function exactly so you can use it to sanity check a hash computed on the backend without spinning up a script everything runs client side your input is encoded to utf 8 bytes with textencoder then hashed by a from scratch javascript implementation of the rfc 1321 compression algorithm four rounds of 16 steps over four 32 bit state words and nothing is sent to a server that s a deliberate choice not a shortcut the browser s native web crypto api crypto subtle digest supports sha 1 256 384 512 but deliberately not md5 since md5 is no longer considered cryptographically secure to keep md5 available for the same checksum and legacy compatibility uses the original tool covered the algorithm had to be hand implemented rather than delegated to the browser md5 is common for cache busting file names quick content checksums that confirm two blobs of text are byte identical deduplication keys and non secret lookup fingerprints cases where speed matters more than resistance to a determined attacker it is a poor choice for anything security sensitive practical collision attacks where two different inputs are crafted to produce the same hash have been demonstrated since 2004 and md5 must never be used to store passwords for integrity checks against an untrusted source or for password storage use sha 256 or a dedicated password hashing function instead examples hash a string text input the quick brown fox jumps over the lazy dog output 9e107d9d372bb6826bd81d3542a419d6 this is the classic md5 test string used across cryptography references a quick way to confirm any md5 implementation is working correctly every digest is the same length text input empty string output d41d8cd98f00b204e9800998ecf8427e input w3docs output d72212c1d3c6e939ee94228a55f0c2f2 md5 always outputs 128 bits 32 hex characters whether the input is empty or many paragraphs long that fixed size is what makes it usable as a checksum equivalent in php php echo md5 the quick brown fox jumps over the lazy dog 9e107d9d372bb6826bd81d3542a419d6 php s md5 returns the same lowercase hex format as this tool so you can cross check a hash from a script without running it frequently asked questions can an md5 hash be reversed or decrypted no md5 is a one way function so there s no algorithm that recovers the original input from a hash tools that claim to decrypt md5 are actually lookup services they hash a huge dictionary of common strings in advance and match your hash against that list so they only work if the original input was predictable and already in the dictionary is md5 safe to use for hashing passwords no md5 is fast to compute which makes brute forcing weak passwords cheap and it has no built in salting so identical passwords always produce identical hashes use a purpose built password hashing function like bcrypt scrypt or argon2 instead they re deliberately slow and salted why doesn t my md5 hash match the one from another tool or language md5 hashes raw bytes not text in the abstract so a trailing newline extra whitespace or a different character encoding changes the input bytes and produces a completely different digest even when the visible text looks identical this tool encodes your input as utf 8 before hashing matching php s md5 default so make sure whatever you re comparing against is hashing the exact same bytes what s the difference between md5 and sha 256 both take input of any length and produce a fixed size digest but md5 outputs 128 bits and sha 256 outputs 256 bits md5 s collision resistance is broken two different inputs can be deliberately crafted to produce the same hash while sha 256 remains cryptographically strong so sha 256 is the safer default whenever the hash needs to resist tampering does this tool send my text to a server no the hash is computed entirely in your browser with javascript your input is never transmitted logged or stored anywhere related tools string to sha 256 hash generator a 256 bit hash with intact collision resistance use this when security matters base 64 encoder some formats like the http content md5 header encode the digest as base64 instead of hex password generator generate a strong random password instead of hashing a weak one with md5 all string functions browse the full set of string tools learn more lesson php md5 php s built in function for computing an md5 hash the same algorithm and hex output format this tool uses lesson php md5_file hash the contents of a file instead of a string lesson javascript textdecoder and textencoder how this tool converts your input to utf 8 bytes before hashing all string functions w3docs tutorial esempi esercizi snippet e quiz gratuiti per il web dal 2014 libri imparare html impara css imparare javascript imparare git imparare java imparare php imparare python pratica esercizi quiz editor try it strumenti html editor password generator html encoder code diff json beautifier azienda informazioni contatti informativa sulla privacy lingua english deutsch русский français español português italiano 2026 w3docs tutti i diritti riservati realizzato per gli sviluppatori