Network & Security Tools
Free online tools for infrastructure professionals. Subnet calculations, IP geolocation, domain lookups, and password generation -- all running in your browser.
IP Subnet Calculator
Enter any IPv4 address to calculate all valid subnets, CIDR blocks, IP ranges, subnet masks, and usable host counts from /32 down to /0.
IP Information Tool
Look up detailed geolocation data, ISP details, ASN, coordinates, and timezone information for any IP address. Auto-detects your IP on load.
Website Information Tool
Query any domain to retrieve DNS records, web server details, HTTP response codes, and full SSL certificate information including validity and issuer.
Password & Key Generator
Generate cryptographically secure random passwords with configurable options, and compute MD5, SHA-256, SHA-512 hash digests instantly.
ASCII Art Generator
Convert text into stylized ASCII art banners using dozens of FIGlet font styles. Choose your font, set the width, and copy the output.
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