Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes
Frequently Asked Questions
What is a hash function?
Which hash algorithm to use?
What is hashing used for?
What is the difference between MD5 and SHA-256?
Can a hash be reversed to find the original text?
What is a Hash?
A hash function converts data of any size into a fixed-size string of characters. The output (hash) is unique to the input - even a tiny change produces a completely different hash.
Hashes are one-way functions: you cannot reverse them to get the original data.
Hash Algorithm Comparison
MD5: Fast but considered cryptographically broken. Still used for checksums.
SHA-1: More secure than MD5 but also deprecated for security use.
SHA-256: Part of SHA-2 family. Widely used and secure. Recommended for most purposes.
SHA-512: Larger output, slightly more secure than SHA-256. Better for password hashing.
Common Use Cases
Password Storage: Store password hashes instead of plain text passwords.
File Integrity: Verify files haven't been modified or corrupted.
Digital Signatures: Ensure authenticity of documents and messages.
Checksums: Quick comparison of large datasets.