Encoding & Security
10 tools in this category.
Hash Generator
Compute MD5, SHA-1, SHA-256, and SHA-512 hashes of any text.
Base64 Text Encoder/Decoder
Encode or decode text to and from Base64.
URL Encoder/Decoder
Encode or decode URL components and query strings.
Zero-Width Text Hider
Hide text inside other text using invisible zero-width Unicode characters.
Base64 Image Encoder/Decoder
Convert images to Base64 data URLs and back.
JWT Decoder
Decode and inspect JSON Web Tokens, with expiry status and HMAC signature verification.
htpasswd Generator
Generate .htpasswd lines for HTTP Basic Auth using bcrypt or legacy SHA-1 hashing, entirely in the browser.
Password Strength Checker
Check how strong a password is with entropy estimation, crack-time, and common-pattern detection.
HTML Entity Encoder/Decoder
Encode or decode HTML entities like &, <, and .
SSL Certificate Decoder
Decode a PEM certificate to inspect its subject, issuer, validity dates, and SANs.