Beeceptor vs CORS Proxy

Beeceptor lets you spin up a mock REST endpoint at a custom subdomain in seconds, define rule-based JSON, XML, plain-text, or binary responses through a no-code rule builder, and inspect the live requests hitting it in real time. It also doubles as an HTTP proxy for intercepting and rewriting responses from a real backend during development. The free tier needs no signup or API key — 50 requests/day per endpoint with up to 3 rules — with paid plans from $10/month unlocking private endpoints, higher volume, and CI/CD integration.

CORS Proxy is a small open-source Node.js server (54 GitHub stars) that forwards a POST request's urlToGet body param to the target URL server-side and relays the response back with permissive CORS headers, sidestepping browser CORS errors for GET-able resources. It is a deploy-it-yourself utility, not a hosted service — the README's old Heroku demo link is dead since Heroku retired free dynos in 2022, so it only works once cloned and deployed to your own host.