Security Tools
Free online security tools for generating passwords, passphrases, hashes, and sharing secrets securely.
Password Generator
Generate cryptographically secure random passwords with customizable length and character sets.
Passphrase Generator
Create memorable yet secure passphrases using random words that are easier to remember.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512, and bcrypt hashes for any text input.
One-Time Secret
Share sensitive information securely with self-destructing encrypted messages.
Command Line Access
Online Security Essentials
Strong security hygiene starts with the basics: unique passwords for every account, secure methods for sharing sensitive information, and an understanding of the cryptographic tools that protect your data. Our security tools are designed to make these best practices accessible to everyone, whether you are a developer managing API keys or a team lead sharing credentials with colleagues.
All of our tools run with privacy in mind. Password and passphrase generation uses cryptographically secure randomness (crypto/rand). Our one-time secret tool encrypts data end-to-end in your browser using AES-256-GCM, meaning we never see your plaintext secrets. Hash generation is performed server-side for convenience, but no input data is stored or logged.
Network Diagnostic Tools
DNS Lookup
Query A, MX, TXT, CNAME, NS, and more from multiple DNS resolvers.
IP Lookup
Get geolocation, ASN, and registration data for any IP address.
SSL Checker
Check SSL/TLS certificates, expiration dates, and certificate chains.
WHOIS Lookup
Find domain registration info, registrar details, and nameservers.
Email Tools
Check MX, SPF, DMARC, and DKIM configuration for email deliverability.