Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text, instantly and in your browser. Useful for checksums, cache keys, and comparing file contents.
waiting for inputwaiting for inputwaiting for inputwaiting for inputwaiting for input// SHA family via the browser's SubtleCrypto · nothing is uploaded
About Hash Generator
A cryptographic hash turns any input into a fixed-length fingerprint: the same input always yields the same digest, and a tiny change produces a completely different one. Hashes are used for checksums, cache keys, deduplication, and integrity checks. This tool computes MD5, SHA-1, SHA-256, and SHA-512 locally — the SHA family via the browser's native SubtleCrypto — so your input never leaves the page.
Frequently asked questions
Which hash should I use?+
Use SHA-256 as a sensible default. MD5 and SHA-1 are fine for non-security checksums but are broken for anything requiring collision resistance.
Can I reverse a hash back to the text?+
No — hashing is one-way. Matching a hash means trying inputs until one produces the same digest, which is why hashes are used for integrity, not encryption.
Should I hash passwords with this?+
No. Passwords need a slow, salted algorithm like bcrypt, scrypt, or Argon2. Raw MD5/SHA is far too fast and unsafe for password storage.