The only cors proxy service all you'll ever need.
app.cors.sh, The testing editor (forked from hoppscotch)
This project's intend is to serve developers a reliable cors proxy service with fast response for their development. Using a cors proxy service to connect to your own server is not a best practice. We'll consistently optimize our service infra to keep the paid version affordable as possible. and the margin will be distributed back to original oss authors.