Type or paste any text below to instantly generate its MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC32 hashes. Hashes update live as you type.
A hash function turns any input, from a single word to an entire file, into a fixed-length fingerprint. The same input always produces the same hash, but even a one-character change produces a completely different result, and the process cannot be reversed to recover the original text. Hashes are used everywhere: verifying that a downloaded file was not corrupted or tampered with, storing passwords securely, generating checksums, deduplicating data, and signing content. This tool computes MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC32 for any text you enter. Every calculation happens entirely inside your own browser using the WebCrypto API and a bit of JavaScript, so your input is never transmitted to our servers, which makes it safe for sensitive strings.
Type or paste your text into the box and the hashes update instantly as you type. There is no button to press. Each result has a Copy button that places the value on your clipboard. You can also switch to file mode to hash a local file (its raw bytes are read in your browser and never uploaded). To share a hash of non-secret text with someone, put the text after the URL, for example /hash-generator/hello, and the page will prefill and hash it automatically.
For integrity checking, use SHA-256 or stronger. MD5 and SHA-1 are shown for compatibility with older systems and file checksums, but both are cryptographically broken and should never be used for security or passwords. CRC32 is a fast error-detection checksum, not a security hash. Hashes are case-sensitive and whitespace-sensitive, so a trailing space or newline changes the result. Input is encoded as UTF-8 before hashing, matching what command-line tools like sha256sum produce, so your results will line up with a server-side check.
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