🔐 Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes
What is a Hash?
A cryptographic hash function takes an input and produces a fixed-size string of characters (the "hash" or "digest"). Key properties:
- One-way — Cannot reverse a hash to get the original input
- Deterministic — Same input always produces the same hash
- Fixed size — Output length is always the same regardless of input size
- Collision resistant — Extremely unlikely for two different inputs to produce the same hash
Common Use Cases
🔑 Password Storage — Store hashes instead of plain text passwords
✅ File Integrity — Verify files haven't been modified (checksums)
📝 Digital Signatures — Sign documents and verify authenticity
🔐 Data Deduplication — Identify duplicate content efficiently
Algorithm Comparison
MD5 — Fast but cryptographically broken. Use only for checksums, not security.
SHA-1 — Also considered weak. Being phased out for security purposes.
SHA-256 — Strong and widely used. Recommended for most applications.
SHA-384/512 — Even stronger, used for high-security applications.
🔒 100% Private & Free
All hashing happens directly in your browser using the Web Crypto API. Your data never leaves your device — no server processing, no logging. Completely free, no signup required.