Hash Generator

Calculate MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC32 for text or files. The hashing flow runs in your browser and does not upload the selected input.

What Is a Hash?

A hash maps the bytes of a text or file to a fixed-length digest. The same bytes and algorithm produce the same value; even a small edit normally changes the result. That makes two digests useful for checking whether copies match. Hashing is not encryption, and a digest is not guaranteed to be unique: different inputs can collide.

This hash maker returns MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC32 together. When a software publisher gives you a checksum, compare it only with the result for the named algorithm. Uppercase and lowercase hexadecimal letters represent the same bytes, but every character and its position must otherwise match.

MD5 Generator, SHA1 Hash Generator or SHA256 Generator?

For a new integrity check with security requirements, choose SHA-256 or SHA-512. The MD5 generator and SHA-1 options remain useful for compatibility with older systems, but not where collision resistance matters. CRC32 is a short error-detection checksum rather than a cryptographic hash.

Do not place a raw result from this page in a password database. Password storage needs a unique salt and a deliberately costly, purpose-built method. The page calculates entered text and selected files on your device with JavaScript and Web Crypto; its hashing flow does not upload that input to the site server.

Frequently Asked Questions About the Hash Generator

The hash routine on this page processes the text and selected file with JavaScript and Web Crypto on your device; it does not upload that input to the site's server. Take normal care when copying sensitive output on a shared device.

No. Raw MD5, SHA-1 or SHA-256 is not a password-storage scheme. Passwords need a unique salt and a deliberately costly, purpose-built method such as Argon2id, scrypt, bcrypt or PBKDF2.

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A plain hash is not a password-storage scheme. When you first need a hard-to-guess password or passphrase, generate it here, then let the service apply its own salted, costly storage method.

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A hash cannot be reversed. To compare it with a reversible text transformation, choose a Caesar shift, encode a short sample, then decode it again with the same key or inspect all possible shifts.

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Before hashing a passage, count its characters, words and line breaks. This makes invisible input changes easier to spot when two hash results differ after copying or editing the text.

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For test fixtures or sample identifiers, draw one number or a list from a chosen range. Set whether duplicates are allowed before feeding the generated values into your own test workflow.

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To carry a short checksum to another device, place the hash text in a QR code. Adjust its size and colours, download the image, and verify the scan before using it on a label or report.

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If you compare HTML files by hash, format the source for review or create a minified copy first. Remember that whitespace changes alter the bytes, so the resulting digest will change too.

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