IP Address Tools
CIDR calculator, subnet mask, IPv4↔IPv6
About IP Address Tools
The IP Address Tools tool allows developers, security auditors, and engineers to perform cidr calculator, subnet mask, ipv4↔ipv6 in a secure, instant, and private manner.
🔒 100% Client-Side Privacy
All computations, key generations, hashing, and conversions are calculated locally inside your web browser. No plain text, secret keys, or uploaded files ever leave your device or reach an external server.
⚡ Offline & PWA Ready
DevCipher is fully usable offline and in air-gapped security environments. Install it as a Desktop Progressive Web App (PWA) via your browser's install menu.