Hash Generator computes MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes of any text or file entirely in your browser using the Web Crypto API. Paste a string or upload a file, select the algorithm, and the hash digest appears instantly in hex or Base64 format. Use the compare field to verify a hash matches an expected value — useful for checking download integrity or comparing password hashes.
A cryptographic hash function takes any input and produces a fixed-length output (the hash or digest) that appears random. The same input always produces the same hash, but even a one-character change produces a completely different output. Hashes are one-way — you cannot reverse a hash to recover the original input. They are used to verify file integrity, store passwords securely, and create digital signatures.
All hashing is computed using the Web Crypto API — your input never leaves your device. Suitable for checking file checksums, generating content hashes for cache-busting, and verifying data integrity.