Free Security & Privacy

SSL / TLS Security Checker

Full TLS audit: cert, HTTP/2, HSTS, headers & A-F score

DNS / DKIM Inspector

Look up SPF, DKIM, DMARC, and MX records

Subdomain Takeover Checker

Detect dangling DNS pointing to unclaimed services

SPF Record Creator

Build a valid SPF TXT record for your domain

DKIM Key Generator

Generate RSA public/private keys for DKIM signing

CSRF Token Generator

Generate cryptographically secure CSRF tokens

Hash Generator

Hash text with MD5, SHA-1, SHA-256, SHA-512

JWT Decoder

Decode and inspect JWT header, payload, signature

Privacy Metadata Stripper

Remove EXIF and hidden metadata from files

Password Generator

Generate strong, random passwords in-browser

Password Strength Visualizer

Score your password and see how it can be cracked

Resume Anonymizer

Strip PII from resumes for blind-review panels

Is It Down for Everyone?

Check if a website is down globally or just for you

Email Address Validator

Validate format, MX records, and disposable domains

WHOIS & Domain Age Checker

Look up domain registration, expiry, and DNSSEC via RDAP

HTTP Headers Inspector

Inspect response headers and get a security score

SSL Certificate Decoder

Parse PEM certificates in-browser, no upload needed

CORS Policy Tester

Test any URL's CORS headers with a real request

CVSS v3.1 Score Calculator

Calculate CVE severity scores using the CVSS v3.1 formula

Bcrypt Hash Generator & Verifier

Generate and verify bcrypt password hashes in-browser

Security Headers Grader

Grade any site's security headers A+ to F with recommendations