Web & HTTP
Parse HTTP headers, look up status codes, build query strings, convert cURL commands to code, and work with colors — utilities for web developers.
16 tools
All Web & HTTP
HTTP Status Codes
Look up any HTTP status code and get a full description with usage guidance.
Query String Parser
Parse URL query strings into a structured JSON object. Handles encoding and arrays.
Query String Builder
Build URL query strings from key-value pairs. Handles encoding automatically.
cURL to Fetch
Convert cURL commands to JavaScript fetch() code instantly.
cURL to Node.js
Convert cURL commands to Node.js axios or native fetch code.
Color Picker & Converter
Pick colors and convert between HEX, RGB, HSL, and HSV formats instantly.
HTTP Header Parser
Parse raw HTTP request or response headers into a structured, readable table.
URL Parser
Decompose any URL into protocol, hostname, port, path, query parameters, and fragment.
User Agent Parser
Parse a User-Agent string to extract browser, version, OS, and device type information.
Basic Auth Header Generator
Encode username and password into an HTTP Basic Authorization header value for API testing.
HTML Meta Tag Generator
Generate complete SEO and Open Graph meta tags for any web page in seconds.
MIME Type Lookup
Look up the MIME content type for any file extension, or find extensions for a MIME type.
robots.txt Builder
Visually build a robots.txt file with user-agent rules, allow/disallow paths, and sitemap URL.
Color Palette Generator
Generate complementary, analogous, triadic, and monochromatic color palettes from any base color.
HTTP Request Builder
Build HTTP requests visually and export as cURL, fetch, axios, or Python requests code.
CSS Color Name Lookup
Browse all 148 CSS named colors, search by name or hex, and copy HEX or RGB values.