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Query DNS records with email security analysis and health scoring
DNS Lookup
A random password generator to create strong and secure passwords. To ensure security, they are generated on the webpage without being sent over the internet.
Encode and decode Base64, Hex, Binary, and other formats with file support
Decode and analyze JSON Web Tokens with security validation
Debug OAuth 2.0 and OpenID Connect flows with JWT decoder, PKCE generator, flow tester, and error troubleshooting
Transforming text with a classic substitution method, the ROT13 Cipher provides a simple way to obfuscate messages and data. It operates by shifting each letter 13 places forward in the alphabet, effectively wrapping around once it reaches the end. Because the English alphabet contains 26 letters, applying the same process twice restores the original content, making it an efficient tool for both encoding and decoding without needing a separate key. Developers, puzzle enthusiasts, and online community members often use this method to hide spoilers, punchlines, or sensitive information from casual viewing. While it does not provide cryptographic security against modern threats, it serves as a reliable way to ensure that text remains unreadable until the recipient chooses to reveal it. This utility supports both the standard ROT13 algorithm and general Caesar cipher shifts, offering flexibility for various obfuscation needs.
Decode and analyze SSL/TLS certificates with security validation