CORSPROXY
Hi HN — solo developer here. I built this tool ~4 years ago purely to solve my own frustration with CORS and repeated proxy setup. The idea was intentionally boring: just prefix a URL and get control over the request and response. Somehow it grew to serving billions of requests per day, including usage by companies and universities. I’m sharing it here mainly to: - get technical feedback - learn what people would actually use a proxy like this for - understand what I should simplify or remove
CORSPROXY launched on February 10, 2026 with 8 votes, #1,231 of 16,628 launches that month and more than 90% of that year's launches.
What it does
Bypass CORS, scrape pages, rewrite headers/body, convert CSV|RSS →JSON, and transform responses—no backend changes. Trusted by companies, universities, and serving billions of requests daily. Built by a solo dev over 4 years. Still just getting started. And the best: Just prefix any URL with "corsproxy.io" and you are ready to go.
Stop getting blocked by Access-Control-Allow-Origin errors. CORSPROXY fixes CORS errors for any API or browser origin in seconds. Create a free account and add your API key.
Stop being blocked by Access-Control-Allow-Origin errors. Proxy any API or domain in seconds — no config needed. // URL that throws a CORS error const apiUrl = "https://api.example.com/data" ; // Prefix the URL with corsproxy.io const response = await fetch ( "https://corsproxy.io/?key=YOUR_API_KEY&url=" + encodeURIComponent (apiUrl) ); // HTTP request succeeds ✅ const data = await response. json (); Free tier: up to 10,000 requests and 1 GB/month. Browsers block frontend requests when an API does not allow your website origin. CORSPROXY makes the request server-side, adds the CORS response headers your browser needs, and returns the API response to your app. Yes. Create a free account…from corsproxy.io
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