drwho.me — network + dev tools

# drwho.me > online developer utilities and a remote MCP endpoint. 10 tools for base64, jwt, dns, uuid, url, json, user-agent, and ip lookup. all callable over http (web) or mcp (claude desktop, cursor, windsurf, chatgpt connectors). open, no signup, no logs. ## tools - [base64](https://drwho.me/tools/base64): encode and decode base64 strings (client-side, unicode-safe). - [json](https://drwho.me/tools/json): format and validate JSON. 2 / 4 space or minified output. - [url codec](https://drwho.me/tools/url-codec): percent-encode and decode URL components. - [uuid](https://drwho.me/tools/uuid): generate UUIDs (v4 random, v7 time-ordered). - [jwt decoder](https://drwho.me/tools/jwt): decode JWT header and payload client-side. no signature verification. - [user agent](https://drwho.me/tools/user-agent): parse your browser's user agent string (browser, os, device, engine). - [what is my ip](https://drwho.me/tools/ip): your public ip address, location, and timezone. - [http headers](https://drwho.me/tools/headers): inspect the http request headers your browser sends. - [ip lookup](https://drwho.me/tools/ip-lookup): look up any IP's geolocation, ASN, and ISP (via ipinfo.io). - [dns lookup](https://drwho.me/tools/dns): resolve A, AAAA, MX, TXT, NS, or CNAME records via Cloudflare DoH. ## mcp - [endpoint](https://drwho.me/mcp/mcp): streamable http transport for ai clients - [landing page](https://drwho.me/mcp): setup instructions and tool list - [server.json](https://drwho.me/server.json): mcp server manifest ## site - [home](https://drwho.me/): browsable tool grid - [blog](https://drwho.me/blog): technical notes on the tools and mcp - [about](https://drwho.me/about): maintainer and mission - [privacy](https://drwho.me/privacy): privacy policy (cookieless analytics, no accounts)