Free, open privacy-first security tools. No tracking, no cookies, no server-side logging. Encryption tools run entirely in your browser.
Generate secure passwords and passphrases with customizable options
Generate MD5, SHA1, SHA256, SHA512 hashes from any text
AES-256 encryption & decryption — runs entirely in your browser
Query A, AAAA, MX, NS, TXT, CNAME records for any domain
Inspect any domain's SSL certificate, expiry, and chain
View response headers and check security header compliance
See your IP address, approximate location, and connection info
Encode or decode Base64 strings instantly
Percent-encode or decode URL strings
Decode and inspect JSON Web Tokens — entirely client-side