30+ free tools for IP privacy, network diagnostics, security testing, and developer utilities. No registration required.
See your public IP, location, ISP, VPN status, and privacy score instantly
Run 6 automated tests and get a shareable privacy grade from A+ to F
Scan 500+ breach databases to see if your email was compromised
See your public IP, location, ISP, and privacy score
Verify your VPN isn't leaking DNS queries to your ISP
Detect if WebRTC exposes your real IP through the browser
See how unique and trackable your browser configuration is
Run 6 tests and get a shareable privacy grade from A+ to F
Check if your VPN or proxy is properly masking your connection
Verify your real IP isn't exposed during P2P activity
Check if your email appears in known data breaches
Measure download, upload, and latency via Cloudflare
Scan for open ports that could be security risks
Geolocation, ISP, and network details for any IP address
Check A, AAAA, MX, TXT, NS, and CNAME records
Domain registrar, creation date, expiry, and nameservers
Find the hostname (PTR record) for any IP address
Visualize network path and hops to any destination
Check if any website is down or responding
Scan your IP against 12+ spam and abuse blacklists
Geolocate up to 50 IP addresses at once
Trace sender IP and check SPF/DKIM/DMARC authentication
Detect browser, OS, screen, and device details
Screen size, viewport, pixel ratio, and color depth
Full user agent string with parsed browser and OS
View all headers your browser sends to websites
Detect timezone, UTC offset, and DST status
Browser language settings and Accept-Language header
Approximate location from your IP address
Convert text to Base64 and back
Prettify, minify, and validate JSON data
Generate SHA-256, SHA-1, and MD5 hashes
Encode and decode URL strings
Create QR codes from text or URLs
Calculate network address, host range, and masks
IP range from CIDR notation with usable hosts
Add a free IP checker to your website
JSON API for IP, DNS, WHOIS, and headers
40+ in-depth privacy and security articles
Browse IPs and privacy info by country
100+ ISPs worldwide with reputation data
Latest security news aggregated from top sources