Free · No signup · Runs in your browser

Free developer tools for proxies, networking & SEO

A growing toolbox of utilities we use ourselves. No accounts, no tracking — just paste a value and get an answer.

What Is My IP

Instantly see your public IP, geolocation, ASN and the headers your browser is leaking.

Test up to 25 proxies for latency, anonymity, protocol and geo. HTTP, HTTPS, SOCKS5.

Detect AAAA records and dual-stack reachability for any domain.

Decode any User-Agent string into browser, OS, device and engine — instantly, in your browser.

Inspect response headers, status codes, redirects, security headers and caching for any URL.

Fetch a site's robots.txt and check whether a path is allowed for Googlebot or any user-agent.

Every tool runs the same way: zero accounts, zero tracking, an answer in seconds.

Step 1

Drop in a URL, IP, proxy list, domain or User-Agent — whatever the tool asks for.

Step 2

Results render in your browser. Where a network call is needed, it runs server-side and returns clean JSON.

Step 3

Spot a problem? Spin up a Rainproxy plan to fix it — or just copy the result and move on.