Localhost to production

Move from localhost to production without CORS breaking

A request that works locally can fail after deploy because the browser origin changes to your real production domain.

One prefix

fetch('https://corsproxy.io/?url=https%3A%2F%2Fapi.example.com%2Fv1%2Fitems')
  .then(response => response.json())
  .then(data => console.log(data));

When this helps

React, Vue, Svelte, and Astro apps going live

Tauri or browser apps moving from localhost to hosted builds

Static sites that call APIs directly from the browser

Free for development, paid for production

Add your production domain at checkout, use your API key, and keep the same one-prefix integration when you ship.

Production domains need an API key. Free stays focused on localhost-like development so the production path stays reliable.