Security Tools
Password generator, hash generator, JWT decoder, AES encryption, bcrypt and ciphers — all free, all in your browser.
Free Security and Encryption Tools
ToollyX provides 10 free security tools for developers, students and privacy-conscious users. Every tool runs entirely in your browser — no keys, passwords, tokens or plaintext are ever sent to any server. This makes them suitable for sensitive operations where you cannot risk data leaving your device.
Password and Hash Tools
The Password Generator uses the Web Crypto API to generate cryptographically secure random passwords with full control over length, character sets and special characters. It also shows the password entropy in bits so you can understand its actual strength. The Hash Generator produces MD5, SHA-1 and SHA-256 hashes using the browser's built-in SubtleCrypto API — nothing is uploaded.
Encryption and Cipher Tools
- AES Encryption — AES-256 encryption and decryption. Your key and plaintext never leave your browser.
- JWT Decoder — Decode any JWT token without a secret. Inspect header, payload and expiry.
- Bcrypt Hash Generator — Generate and verify bcrypt hashes with adjustable cost factor.
- Caesar Cipher — Shift-based substitution cipher for any value 1–25.
- ROT13 Encoder — Classic ROT13 text encoding and decoding.