HMAC Generator
Generate Keyed-Hash Message Authentication Codes (MD5, SHA1, SHA256, SHA512) securely in your browser.
HMAC Calculator
Keyed-Hash MAC
HMAC MD5
HMAC SHA256
Signature Generator
- Enter Message: Type the message or data payload you want to sign.
- Enter Secret Key: Provide the secret key used for hashing.
- Select Algorithm: Choose between MD5, SHA1, SHA256, or SHA512.
- Generate: The tool will instantly compute the HMAC signature.
Other Tools
Password Strength Checker
Check how secure your password is and get tips to improve it with our free client-side tool.
Random Choice Picker
Make fair decisions instantly with our free Random Choice Picker and Spinning Wheel. Perfect for raffles, giveaways, or deciding what to eat.
Regex Tester
Test and debug your regular expressions with this online regex tester. Supports JavaScript RegExp flavor with real-time highlighting.
SHA-256 Generator
Generate SHA-256 hashes securely in your browser. Fast, free, and privacy-focused online SHA-256 calculator tool.
SQL Formatter/Beautifier
Free online SQL formatter and beautifier. Indent, prettify, and minify your SQL queries. Supports standard SQL syntax with uppercase options.
URL Encoder/Decoder
Encode and decode URLs easily using this online tool.