Hash Generator
Hash Generator
About Hash Generator
Generate SHA-256, SHA-512, and other cryptographic hashes online with our free hash generator. Hash any text or file content for checksums, password storage, digital signatures, and data integrity verification. Supports MD5, SHA-1, SHA-256, and SHA-512 algorithms.
Example
Input
helloSHA-256 Output
2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824Why Use Hash Generator?
- Verify file integrity — Compare hashes to ensure files have not been corrupted or tampered with.
- Password storage — Hash passwords before storing; never store plain text.
- Digital signatures — Cryptographic hashes are the foundation of digital signatures and certificates.
Hash Generator FAQs
What is a hash function?
A hash function takes input data of any size and produces a fixed-size output (the hash or digest). The same input always produces the same hash, but it is computationally infeasible to reverse the process.
Which hash algorithm should I use?
SHA-256 is the most widely recommended for general use. SHA-1 is considered weak for security purposes. SHA-512 provides a longer hash and is used when extra collision resistance is needed.
Can hashes be reversed?
Cryptographic hash functions are designed to be one-way. You cannot recover the original input from a hash. However, weak or short inputs can be found via brute force or rainbow table attacks.
What is the difference between SHA-1 and SHA-256?
SHA-1 produces a 160-bit hash and is considered weak for security. SHA-256 produces a 256-bit hash and is part of the SHA-2 family, widely used for security-critical applications.
Can you reverse a hash?
No. Cryptographic hash functions are one-way — you cannot recover the original input from the hash output. This is what makes them useful for password storage.