Can I use this for password hashing?

No. General-purpose hash functions (even SHA-256) are too fast for password storage—they’re vulnerable to brute-force attacks. Use bcrypt, scrypt, or Argon2 for passwords. This tool is appropriate for file integrity checks, checksums, and data fingerprinting.

Is the hashing done server-side?

Everything runs in your browser. Text is hashed client-side using the Web Crypto API and JavaScript libraries. No data is transmitted to any server.

Hash Generator

About Hash Generator

Generates cryptographic hashes from text or file input using six algorithms: MD5 (via SparkMD5), SHA-1, SHA-256, SHA-512 (via Web Crypto API), SHA-3-256 (via js-sha3), and BLAKE2b (via blakejs). Hashes update live with a 300ms debounce as you type. Each algorithm is labeled with its security status—Broken (MD5), Deprecated (SHA-1), or Secure (SHA-256+). Includes reference test vectors for the string “abc” to verify output correctness.

MD5 via SparkMD5, SHA-1/256/512 via Web Crypto API, SHA-3-256 via js-sha3, BLAKE2b via blakejs
Toggle individual algorithms on/off to control which hashes are computed
Security badges: MD5 marked Broken, SHA-1 marked Deprecated, SHA-256/512/SHA-3/BLAKE2b marked Secure
Known test vectors for “abc” displayed as a verification reference
Hash history tracks up to 10 unique results with timestamps

Frequently Asked Questions

Can I use this for password hashing?: No. General-purpose hash functions (even SHA-256) are too fast for password storage—they’re vulnerable to brute-force attacks. Use bcrypt, scrypt, or Argon2 for passwords. This tool is appropriate for file integrity checks, checksums, and data fingerprinting.
Is the hashing done server-side?: Everything runs in your browser. Text is hashed client-side using the Web Crypto API and JavaScript libraries. No data is transmitted to any server.

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