I built a free IP Address Info tool — geolocation, ISP, ASN, no API key needed

What I built

I added an IP Address Info tool to devnestio — a free dev tools collection.

👉 https://devnestio.pages.dev/ip-address-info/

Look up any IPv4 or IPv6 address to get geolocation, ISP, ASN, timezone, and more. No sign-up, no API key.

Why I built it

I often need to check where a request is coming from, verify VPN exit nodes, or debug network issues. Having a clean UI beats piping curl through jq every time.

Features

• Full IP info — country, city, region, postal code, timezone, ISP, org, ASN, hostname
• Auto-detect your own IP on page load
• Private IP detection — RFC1918, loopback, IPv6 private ranges get a "Private" badge
• OpenStreetMap link for public IPs with lat/lon
• Copy as JSON — grab all data with one click
• Lookup history — last 10 IPs stored in localStorage

Tech

• Uses ip-api.com (free, no key required)
• Single HTML file, zero dependencies
• Hosted on Cloudflare Pages

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Part of devnestio — a growing collection of free, in-browser developer tools.