Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text input.
Processed locally in your browser
Input Text
Frequently Asked Questions
What is the difference between MD5 and SHA-256?
MD5 produces a 128-bit hash and is fast but considered cryptographically broken. SHA-256 produces a 256-bit hash and is currently the standard for security-sensitive applications like SSL certificates and blockchain.
Can you reverse a hash back to the original text?
No. Hashing is a one-way function by design. You cannot mathematically reverse a hash, though weak hashes like MD5 can be attacked with precomputed lookup tables.
Which hashing algorithm should I use?
Use SHA-256 or SHA-512 for security purposes. MD5 and SHA-1 are fine for checksums and non-security uses like cache keys or file integrity checks.
Is my input text stored or sent anywhere?
No. All hashing is performed locally in your browser using the Web Crypto API and a client-side MD5 implementation. Nothing leaves your device.