Hash Generator
Compute MD5, SHA-1, SHA-256, and SHA-512 hashes simultaneously.
| Algorithm | Hash | |
|---|---|---|
| MD5 | No input | |
| SHA-1 | No input | |
| SHA-256 | No input | |
| SHA-512 | No input |
Other Utilities
What is a Hash Function?
A cryptographic hash function converts data of arbitrary size into a fixed-size hash value. The same input always produces the same output, and even a tiny change in input produces a completely different hash.
Algorithm Comparison
| Algorithm | Output Size | Security | Use Case |
|---|---|---|---|
| MD5 | 128-bit (32 chars) | Low (vulnerable) | Checksums only |
| SHA-1 | 160-bit (40 chars) | Low (collisions found) | Legacy systems |
| SHA-256 | 256-bit (64 chars) | High | Current standard |
| SHA-512 | 512-bit (128 chars) | Very High | High security needs |
Common Use Cases
- File integrity verification: Verify downloaded files haven't been tampered with
- Password storage: Store hashed passwords instead of plaintext (use salting)
- Digital signatures: Authenticate messages and documents
- Blockchain: Secure transaction data integrity
