Security & Developer Tools
Free online tools for SSL checks, DNS lookup, Sigma to KQL conversion, QR codes, hashing, encoding, and more. No signup required.
Security & Network
SSL Certificate Checker
Verify SSL/TLS certificate validity, expiration, and issuer for any domain.
DNS Lookup
Look up A, AAAA, MX, TXT, CNAME, NS records for any domain.
IP Address Lookup
Get geolocation, ISP, and network info for any IP address.
Security Headers Checker
Analyze HTTP security headers (CSP, HSTS, X-Frame-Options) for a URL.
Password Checker
Check if your password has been exposed in known data breaches.
CVE Search
Search the CVE database for vulnerabilities and security advisories.
SIEM & Detection
Developer & Encoding
Hash Generator
Generate MD5, SHA1, SHA256, SHA512 hashes from text.
Base64 Encoder / Decoder
Encode and decode text to and from Base64.
JSON Formatter
Format, validate, minify, and prettify JSON.
UUID Generator
Generate random UUIDs (v4) for your applications.
Regex Tester
Test and debug regular expressions with live matching.
Text Diff
Compare two texts and see differences side-by-side.