Hash Generator is a free online tool for generating MD5, SHA-1, SHA-256, SHA-512, SHA3, Keccak, and RIPEMD-160 hashes. Supports HMAC and file hashing. No data is sent to any server.
What is Cryptographic Hashing?
Cryptographic hashing converts input data of any size into a fixed-size fingerprint called a hash. The same input always produces the same hash, but even a tiny change completely alters the output. Hashes are one-way — you cannot reverse a hash back to the original input. This tool generates hashes using MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, SHA3, Keccak, and RIPEMD-160.
Common Use Cases
Data Integrity Verification
Verify data integrity by comparing hashes of original and received data to detect any changes during transmission or storage.
Message Authentication
Generate HMAC signatures using a secret passphrase to authenticate message origin and integrity.
How to Generate a Hash
- 1
Enter your text
Paste or type the plain text you want to hash into the input field.
- 2
Select algorithms
Check the hash algorithms you need from the algorithm panel. Multiple algorithms can be selected simultaneously.
- 3
Copy the hash
The hash output is displayed instantly. Use the copy button or paste a hash to compare for verification.
MD5
MD5 is a widely used hash function. It's been used in a variety of security applications and is also commonly used to check the integrity of files. Though, MD5 is not collision resistant, and it isn't suitable for applications like SSL certificates or digital signatures that rely on this property.
SHA-1
The SHA hash functions were designed by the National Security Agency (NSA). SHA-1 is the most established of the existing SHA hash functions, and it's used in a variety of security applications and protocols. Though, SHA-1's collision resistance has been weakening as new attacks are discovered or improved.
SHA-2
SHA-256 is one of the four variants in the SHA-2 set. It isn't as widely used as SHA-1, though it appears to provide much better security.
SHA-512 is largely identical to SHA-256 but operates on 64-bit words rather than 32.
SHA-3
SHA-3 is the winner of a five-year competition to select a new cryptographic hash algorithm where 64 competing designs were evaluated.
HMAC
Keyed-hash message authentication codes (HMAC) is a mechanism for message authentication using cryptographic hash functions.