Generate and test cryptographic hashes instantly. Protect data and verify integrity with our powerful, easy-to-use hash calculator — feel confident in your security.
Quick tip: You don't need to be a coder to hash securely.
Hashing algorithms convert input data into a fixed-length output, often used to ensure data security and integrity. A hash is a one-way function and cannot be reversed.
Hashing transforms any size input into a fixed-size output using internal operations like bitwise logic and modular arithmetic. Key characteristics include:
H(i) = H(i-1) + f(H(i-1), M(i))
where M(i) = message block i,
and f = compression functionFinal hash is fixed-length: 256 bits for SHA-256, 512 for SHA-512, etc.
Companies store SHA-512 hashes of passwords. At login, input is hashed and compared. Attackers can't retrieve the original due to one-way hashing.
Bitcoin applies SHA-256 twice to block headers. Transactions are hashed to verify authenticity and prevent tampering.
Enter text, choose an algorithm, and generate a secure hash instantly. Useful for developers, researchers, and system admins.
Start hashing now and make your data tamper-proof in seconds.
| Input Data | Hashing Algorithm | Generated Hash |
|---|---|---|
| password123 | MD5 | 482c811da5d5b4bc6d497ffa98491e38 |
| helloWorld | SHA-256 | 872e4bdc3e6c6161fbe939650f46f00d8a3c120c69f8d820feffb2e8a682d1ce |
| mySecureData | SHA-512 | 4d5a374b9c857659bdb3dc93c2ec7495dd51ab4ac... |
| (empty string) | SHA-256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| 🚀 LaunchCode | SHA-256 | 5e93847ab1c7f1d410d255d130da5de31c84f22e670a2981dc3dd1eb4b7db3f4 |