Crypto & Security

Free browser-based developer tools across encoding, formatting, crypto, generators, reference, and text utilities. Runs locally — nothing is uploaded.

Hash — Hash — runs entirely in your browser; nothing is uploaded.
HMAC — HMAC — runs entirely in your browser; nothing is uploaded.
AES Encrypt/Decrypt — AES Encrypt/Decrypt — runs entirely in your browser; nothing is uploaded.
RSA Encrypt/Decrypt — RSA Encrypt/Decrypt — runs entirely in your browser; nothing is uploaded.
Password Generator — Password Generator — runs entirely in your browser; nothing is uploaded.
UUID Generator — UUID Generator — runs entirely in your browser; nothing is uploaded.
TOTP / 2FA — TOTP / 2FA — runs entirely in your browser; nothing is uploaded.
SM3 Digest — SM3 Digest — runs entirely in your browser; nothing is uploaded.
SM4 Symmetric — SM4 Symmetric — runs entirely in your browser; nothing is uploaded.
SM2 Asymmetric — SM2 Asymmetric — runs entirely in your browser; nothing is uploaded.
SSL Certificate Checker — SSL Certificate Checker — runs entirely in your browser; nothing is uploaded.
File Checksum — File Checksum — runs entirely in your browser; nothing is uploaded.