CATEGORY11 tools
Security
Privacy-minded generators and local safety helpers.
AvailableLocal
Content Security Policy Generator
Build a Content-Security-Policy header from a form.
AvailableLocalEmail Header Analyzer
Organize raw email headers into fields, route, and reported auth results.
AvailableLocalEXIF Viewer and Remover
Inspect common photo metadata and download a clean copy.
PopularAvailableLocalHash Generator & File Checksum
Compute SHA-1, SHA-256, SHA-384, and SHA-512 hashes.
AvailableLocalHMAC Generator
Generate HMAC hashes with a secret key.
AvailableServerPassword Breach Checker
Check if a password has appeared in a known data breach.
PopularAvailableLocalPassword Generator
Generate strong passwords with browser cryptography.
AvailableServerSecurity Headers Scanner
Scan a site's HTTP response headers and grade its security posture.
AvailableLocalSSH Key Generator
Generate Ed25519, RSA, or ECDSA SSH key pairs with OpenSSH public key and fingerprints.
AvailableServerSSL/TLS Certificate Checker
Run a live TLS handshake against a domain and grade its certificate, chain, and protocol support.
AvailableLocalX.509 Certificate Decoder
Decode PEM or DER certificates locally in the browser.