🔐 Hash Generator

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.