The Proxy
for Developers Builders Hackers Engineers Teams

// Build proxy URL with cache parameters
const baseUrl = 'https://corsproxy.io/';
const params = new URLSearchParams({
  url: 'https://api.github.com/users/octocat',
  key: 'YOUR_API_KEY',
  ttl: '1w',  // Cache for 1 week
  swr: '1d'   // Stale-while-revalidate: 1 day
});

// Make unlimited requests - served from cache
fetch(baseUrl + '?' + params)
  .then(response => response.json())
  .then(data => console.log(data));

// Extract elements using CSS selectors
const params = new URLSearchParams({
  url: 'https://news.ycombinator.com',
  selector: '.titleline > a',  // CSS selector
  attr: 'href',                 // Extract href attribute
  format: 'json'                // Return as JSON array
});

fetch('https://corsproxy.io/?' + params)
  .then(response => response.json())
  .then(links => console.log(links));
  // Returns: ["url1", "url2", "url3", ...]

// Rewrite response headers from the API
const url = 'https://corsproxy.io/' +
  '?url=https://api.example.com/data.json' +
  '&headers[]=content-type:application/json' +
  '&headers[]=cache-control:no-cache' +
  '&headers[]=x-frame-options:' + // Remove header
  '&format=json'; // Transform response body

fetch(url)
  .then(response => response.json())
  .then(data => console.log(data));

// Convert between JSON, XML, and CSV formats
const params = new URLSearchParams({
  url: 'https://api.example.com/data.xml',
  format: 'json'  // Convert XML to JSON
});

fetch('https://corsproxy.io/?' + params)
  .then(response => response.json())
  .then(data => console.log(data));

// Also supports: xml, csv, text
// Auto-detects source format