Security & Crypto
9 tools — all free, all browser-side.
TOTP / 2FA Generator
New
Generate live TOTP (RFC 6238) codes from a Base32 secret — the algorithm behind Google Authenticator.
JWT Decoder
Decode and inspect JSON Web Tokens — header, payload, signature.
JWT Builder
Build and sign JWT tokens with custom claims and HMAC secrets.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text.
bcrypt Generator
Hash passwords with bcrypt and verify hashes — configurable salt rounds.
AES Encrypt / Decrypt
Encrypt and decrypt text with AES, DES, TripleDES and more — browser-only.
CSP Header Generator
New
Build a Content-Security-Policy header by configuring each directive.
File Checksum Verifier
New
Compute and verify SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any file.
RSA Key Pair Generator
New
Generate RSA public/private key pairs (PEM format) entirely in your browser.