Security Note: This tool uses JavaScript to compute hashes locally. Your passwords or sensitive data never leave your device.
Hash Generator
Generate cryptographic hashes (MD5, SHA256...) directly in your browser. No data is sent to any server.
MD5 128-bit
SHA-1 160-bit
SHA-256 Standard
SHA-512 High Security
RIPEMD-160 160-bit
Frequently asked questions
Can I reverse a hash back to the original text?
No. MD5, SHA-1 and the SHA-2 family are one-way functions by design — there is no way to compute the input from the digest. So-called 'reverse' sites only look up precomputed hashes of common strings; they cannot invert an arbitrary hash.
Which hash should I use?
Use SHA-256 for general integrity checks and signatures. Avoid MD5 and SHA-1 for anything security-sensitive — both are broken against collision attacks. For password storage, use a dedicated slow hash like bcrypt or Argon2 instead of these.
Is my text sent to a server?
No. Hashes are computed in your browser, so you can safely hash sensitive strings without them leaving your machine.