Discover subdomains for any domain using public Certificate Transparency logs. Fast, passive, and free. Perfect for security audits, penetration testing, OSINT, bug bounty hunting, and infrastructure discovery—without actively scanning the target.

Generate a free temporary email instantly. Receive verification emails and OTPs without exposing your personal inbox. No signup required, real-time inbox updates, and automatic cleanup to keep your privacy protected.

ToolsHub is a collection of 600+ free online tools — PDF, image, text, converters, calculators, developer, color, QR, and more. Everything runs **entirely in your browser**: your files never get uploaded to a server. No sign-up, no watermarks, no limits on the free tools. Fast, ad-supported, and built mobile-first.