Security Tools

Free online security tools — hash generators, JWT decoder, password strength checker, and HMAC tools that never leave your browser.

HMAC Generator

Generate HMAC signatures online with SHA-256, SHA-512, or MD5. Free, instant, and 100% client-side. Your secret key never leaves your browser.

MD5 Generator

Generate an MD5 hash from any string instantly. Free, browser-based, and 100% private. No data is uploaded or stored anywhere.

Password Generator

Need a secure password generator? Create a strong, random password instantly in your browser. Our free tool keeps your data safe with zero server uploads.

Password Strength Checker

Use our free password strength checker to test your password security instantly. See how strong your password is completely offline in your browser.

SHA1 Generator

Need a fast SHA1 generator? Calculate a SHA1 hash online instantly. Our secure, browser-based tool generates your SHA1 checksum without server uploads.