Hash Generator Online — MD5, SHA-1, SHA-256, SHA-512
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text
All hashing is done locally in your browser. Nothing is sent to any server.
Frequently Asked Questions
What is a hash function?
A hash function converts any input into a fixed-size string of characters. It's a one-way function — you cannot reverse a hash to get the original input.
Which hash algorithm should I use?
SHA-256 for general security purposes. SHA-512 for maximum security. Never use MD5 or SHA-1 for security — they have known collision vulnerabilities.
Is hashing the same as encryption?
No. Hashing is one-way — you cannot recover the original data. Encryption is two-way — you can decrypt with the correct key. Use hashing for passwords, encryption for data you need to read later.
For authorized, legal, and ethical security testing only. Scans are rate-limited to 3 per day on the free tier.