Hash Generator
Generate MD5, SHA1, SHA256, SHA384, SHA512 hashes from text or files.
Enter two hash values to check if they match. Useful for verifying file integrity.
📖 About Hash Functions
A hash function is a mathematical algorithm that converts data of any size into a fixed-size string of characters. Hash functions are one-way, meaning you cannot reverse the hash to get the original data.
Supported Algorithms
- MD5 - 128-bit hash (32 hex characters). Fast but not secure for cryptographic use.
- SHA-1 - 160-bit hash (40 hex characters). Deprecated for security purposes.
- SHA-256 - 256-bit hash (64 hex characters). Part of SHA-2 family, widely used and secure.
- SHA-384 - 384-bit hash (96 hex characters). Truncated version of SHA-512.
- SHA-512 - 512-bit hash (128 hex characters). Most secure, best for sensitive data.
💡 Pro Tip: All hashing is done locally in your browser using the Web Crypto API. Your data never leaves your device, ensuring complete privacy.
❓ Frequently Asked Questions
Hashes are used for data integrity verification, password storage, digital signatures, file checksums, and blockchain technology. They ensure data hasn't been tampered with.
No, hash functions are designed to be one-way. You cannot mathematically reverse a hash. However, common passwords can be found using rainbow tables or brute force attacks, which is why salting is important.
For security purposes, use SHA-256 or SHA-512. MD5 and SHA-1 are considered cryptographically broken. For simple checksums or non-security purposes, MD5 is still fast and sufficient.
Hash functions are deterministic - the same input will always produce the same output. This property is essential for verification purposes. Even a tiny change in input produces a completely different hash.