MD5 and SHA-1 are cryptographically weak. Use SHA-256+ for security work. Never use these for password storage — use bcrypt or argon2.
How to use the Hash Generator
Type or paste the text you want to hash into the input box. Choose your hash algorithm from the tabs — MD5, SHA1, SHA256 or SHA512. The hash is generated instantly. Click Copy to grab it.
Frequently Asked Questions
A hash is a fixed-length string generated from any input using a mathematical algorithm. The same input always produces the same hash, but the hash cannot be reversed to get the original text. It is a one-way process.
For most uses SHA256 is the right choice — it is fast, secure and widely supported. Avoid MD5 and SHA1 for security purposes as they have known weaknesses. SHA512 offers the highest security.
Not directly. Hashes are one-way functions. However, attackers can use rainbow tables — precomputed lists of common text and their hashes. This is why passwords should always be hashed with a salt before storage.
Common uses include verifying file integrity (checksum), storing passwords securely in databases, digital signatures and blockchain. When you download software, the developer often provides an MD5 or SHA256 hash so you can verify the file has not been tampered with.