Featured Product
Convert Tools
cURL to Axios
Convert curl commands to Axios code instantly. Supports async/await, promise chains, and config-only output. Handles headers, JSON bodies, form data, basic auth, cookies, and redirects.
cURL to Fetch
Convert curl commands to JavaScript fetch() code instantly. Supports async/await, promise chains, and bare fetch. Handles headers, JSON bodies, FormData, basic auth, and cookies.
cURL to PHP
Convert curl commands to PHP code instantly. Supports PHP cURL extension, Guzzle HTTP client, and file_get_contents. Handles headers, JSON bodies, form data, basic auth, cookies, and TLS options.
cURL to Python Requests
Convert curl commands to Python code instantly. Supports requests, httpx (sync & async), and urllib. Handles headers, JSON bodies, form data, basic auth, cookies, and TLS options.
Dev Tools
cURL Parser
Parse curl commands and inspect every part of the HTTP request — method, URL, query parameters, headers, body, basic auth, cookies, and flags — broken down into a clean structured view. 100% client-side.
HTTP Header Diff
Compare two HTTP header blocks online and highlight added, removed, and changed headers with malformed-line detection.
HTTP Request Parser
Parse raw HTTP requests online. Instantly break down method, URL, path, query parameters, headers, and body into structured tables. Supports all HTTP methods and JSON body formatting.
Webhook Request Replayer
Paste a saved webhook request and instantly get cURL, fetch, or Axios code to replay it. Debug failed webhook deliveries, test local handlers, and reproduce webhook events without waiting for a retry.
Generator
Cache-Control Header Generator
Build HTTP Cache-Control headers visually. Pick directives like public, private, no-cache, max-age, s-maxage, immutable, and stale-while-revalidate, then copy ready-to-paste Nginx, Apache, Express, or CDN snippets.
CORS Header Generator
Generate safe CORS headers online. Configure Access-Control-Allow-Origin, methods, allowed headers, credentials, exposed headers, max-age, and Vary: Origin, then copy snippets for Express, Nginx, Apache, PHP, Fastify, or serverless APIs.
Curl Command Builder
Build cURL commands online with method, URL, headers, query params, auth, request body, and common options. Instant copy-ready output in your browser.
HTTP Header Builder
Build HTTP request headers visually and export as raw HTTP, cURL, JavaScript fetch, Python requests, or Node.js code. Header autocomplete, value presets, and copy-ready output.
Mock API Response Generator
Generate realistic mock REST API responses with status codes, headers, pagination and error shapes. Export as JSON, raw HTTP, MSW handler, or curl.
Permissions-Policy Header Generator
Build HTTP Permissions-Policy headers visually. Allowlist or block 30+ browser features (camera, microphone, geolocation, clipboard, USB, payment, fullscreen, browsing-topics, …) and copy snippets for Nginx, Apache, Express, or CDN.
Query String Builder
Build and parse URL query strings online. Add key-value pairs, choose array styles (repeat, brackets, indices, comma), control encoding, sort, and copy ready-to-use query strings or full URLs.
Request Payload Builder
Build HTTP request payloads visually — JSON, form-data, URL-encoded, XML, GraphQL, and raw. Live preview with copy and download. Free online tool.