Security & Networking
Cryptographic Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from any text input.
Bcrypt Hasher & Verifier
Hash a password with real bcrypt and a random salt, or verify it against an existing bcrypt hash.
JWT Token Decoder
Decode a JSON Web Token instantly to inspect its header and payload.
Connection & Browser Profiler
View your browser's user-agent, screen, timezone and connection details.
Network Toolkit
Look up a simulated DNS and ping-style network profile for any host.
Password Entropy Simulator
Estimate how long a password would take to crack, based on length and character set.
Network Ports Dictionary
Search a full reference of standard network port assignments.
Caesar Cipher Tool
Encode or decode text using the classic character-shifting Caesar cipher.
Vigenère Cipher Tool
Encode or decode text using a keyword-based Vigenère cipher.
BIP-39 Mnemonic Generator
Generate a standards-compliant 12- or 24-word English BIP-39 mnemonic with secure browser randomness and a valid checksum.
File Checksum Verifier
Upload any file and instantly compute its MD5, SHA-1, SHA-256 and SHA-512 checksums, entirely in your browser.