Find MIME types for any file extension — and extensions for MIME types. Set correct Content-Type headers fast — local reference, free, no signup.
Content reviewed October 2026 · About Toolzum
Parse Set-Cookie headers into structured JSON, or analyze cookie security flags (Secure, HttpOnly, SameSite, expiry). Flag missing Secure, HttpOnly, and SameSite attributes — free, local, no signup.
Generate Nginx server blocks — reverse proxy, SSL, gzip, caching headers — without syntax hunting. Ship a correct vhost first try — local generation, free, no signup.
Generate correct CORS headers — Access-Control-Allow-Origin, methods, headers, credentials. Fix preflight failures with exact syntax — local generation, free, no signup.
Generates a browser extension that captures browser tabs, full screens, or specific application windows with configurable resolution, frame rate. No signup or account required.
Search Indian pincodes and post office branches by pincode, location name, or area. Find delivery status, office type, and contact details for any post office in India.
text/html, text/css, application/javascript, image/webp, font/woff2 — mislabeled types break rendering (JS served as text/plain won't execute).
Enter .avif, .mjs, .wasm — exact registered types return with aliases. New formats register at IANA; this reference tracks common ones.
Wrong Content-Type (or missing Content-Disposition) makes browsers display instead of downloading. Set both headers from the lookup.
No — lookup runs against a local reference in your browser. Nothing leaves your device.
Port Number Lookup
Look up TCP/UDP port assignments — 443 HTTPS, 5432 Postgres — with service context. Identify mystery listeners instantly — local reference, free, no signup.
HTTP Status Code Checker
Look up HTTP status codes by number — view description, label, and response class (informational, success, redirect, client error, server error).