Hash Generator
Generate MD5, SHA1, SHA256, SHA512, BLAKE2b, BLAKE2s hashes for text and files. Also verify hash integrity.
Hash Generator Tutorial
What is a Hash?
A hash function converts data (text or file) into a fixed-size string of characters. It's a one-way function — you cannot reverse a hash back to the original data. Common uses include verifying file integrity, password storage, and data fingerprinting.
Common Use Cases
- File verification: Check if a downloaded file is corrupted by comparing its hash
- Password security: Websites store hashed passwords instead of plain text
- Data integrity: Detect if a file has been modified
- Duplicate detection: Identify identical files by comparing hashes
Algorithm Comparison
| Algorithm | Output Length | Speed | Best For |
|---|---|---|---|
| MD5 | 32 chars | Fast | Quick checksums (not for security) |
| SHA-1 | 40 chars | Fast | Legacy systems (deprecated for security) |
| SHA-256 | 64 chars | Medium | General purpose, file verification |
| SHA-512 | 128 chars | Medium | High-security applications |
| BLAKE2b | 128 chars | Fast | Modern, faster than SHA-3 |
| BLAKE2s | 64 chars | Fast | Lightweight, 32-bit platforms |