Hash Generator

Runs entirely in your browser

Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes directly in your browser.

Advertisement

Advertisement

What is Hash Generator?

Hash Generator computes a fixed-length fingerprint of your text using several common hashing algorithms. The same input always produces the same hash, and even a tiny change in the input produces a completely different one — useful for verifying data integrity or comparing values without storing the original text.

How to use Hash Generator

  1. Type or paste your text into the Input box.
  2. Click Generate Hashes.
  3. Copy any of the MD5, SHA-1, SHA-256, SHA-384 or SHA-512 results.

Features

  • Generates MD5, SHA-1, SHA-256, SHA-384 and SHA-512 in one pass.
  • SHA-1/256/384/512 use the browser's native Web Crypto API.
  • Individual copy buttons for each hash.
  • 100% client-side — your text never leaves your browser.

Example

Hashing the text Toolbeel produces:

MD5:    9c5db4e0d118100d80e6083866e5c669
SHA-1:  2af4e2f7cd72a993df36de55f233c70d09647011
SHA-256: 75e2abd2a37ecb451426ed3f3a2f6c3a398dbd1064b26178b0b1ae802fdfbd93
SHA-384: 30e083e89d4ef48f4898acf3b95f0138339c05e468bed19f243dff3dc9f25e426e7e534417090eefb0883919f0338768
SHA-512: 7024b187a481157518320ec2185ccc282397daa5c667c6b3aa81f07235c3359d8624e9bf9efbe8d3a7e9a4dfb0ee74d71c976ee79e98665292897ecde9c5c341

Change even one character of the input — a capital letter, an extra space — and every algorithm above produces a completely different result.

Security notes

  • The browser's built-in SubtleCrypto API doesn't implement MD5, so this tool includes its own pure-JavaScript MD5 implementation (RFC 1321) for that one algorithm. SHA-1, SHA-256, SHA-384 and SHA-512 all run through crypto.subtle.digest(), the browser's native, audited implementation.
  • Output length tells you the algorithm's bit strength directly: MD5 is 128 bits (32 hex characters), SHA-1 is 160 bits (40 characters), SHA-256 is 256 bits (64 characters), SHA-384 is 384 bits (96 characters) and SHA-512 is 512 bits (128 characters).
  • MD5 has practical collision attacks — two different inputs producing the same hash — and SHA-1 has a published one too (the 2017 "SHAttered" attack). Both are still fine for checksums or detecting accidental corruption, but neither should be relied on where someone might deliberately try to fake a match.
  • None of these algorithms are appropriate for storing passwords, with or without a pinch of salt — they're deliberately fast, which makes them cheap to brute-force. Password storage needs a slow, purpose-built algorithm like bcrypt, scrypt or Argon2 on the server.

Is Hash Generator safe?

Yes. Hash Generator computes every hash locally — SHA-1, SHA-256, SHA-384 and SHA-512 through the browser's native crypto.subtle.digest(), and MD5 via a local JavaScript implementation since SubtleCrypto doesn't support it — so the text you hash never reaches a server.

Frequently Asked Questions

Can I use MD5 or SHA-1 to store passwords?

No. MD5 and SHA-1 are fast, general-purpose hashing algorithms — not designed for password storage. Passwords should use a slow, salted algorithm such as bcrypt, scrypt or Argon2, implemented server-side.

Which algorithm should I use?

SHA-256 is a good general-purpose default for checksums and data integrity checks. MD5 and SHA-1 are considered cryptographically broken and should only be used for legacy compatibility, never for security.

Will the same input always produce the same hash?

Yes. Hashing is deterministic — the same input and algorithm always produce the same output, which is why hashes are used to verify file integrity.

Related tools