Hash & HMAC Generator
100% Free · Client-Side
Generate cryptographic hashes (SHA-1, SHA-256, SHA-384, SHA-512) and Hash-based Message Authentication Codes (HMAC) instantly.
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What is the Hash & HMAC Generator?
The Hash & HMAC Generator is a secure, client-side developer tool that allows you to generate cryptographic hashes (SHA-1, SHA-256, SHA-384, SHA-512) and Hash-based Message Authentication Codes (HMAC) instantly. Since it uses your browser's native Web Crypto API, your data is never sent to a server.
Frequently Asked Questions
1. What is the difference between SHA-1, SHA-256, and SHA-512?
These are cryptographic hash functions. SHA-1 produces a 160-bit hash and is considered cryptographically broken. SHA-256 and SHA-512 produce 256-bit and 512-bit hashes respectively and are highly secure standards used globally.
2. What is HMAC?
HMAC (Hash-based Message Authentication Code) combines a cryptographic hash function with a secret cryptographic key. It is used to simultaneously verify both the data integrity and the authenticity of a message.
3. Is this secure? Where is my data processed?
Yes! Your data never leaves your device. This tool uses your browser's native Web Crypto API, meaning all hashing happens locally and securely within your browser.