there's a few players in this space and I'd encourage anyone to look around to find the one best suited to their workflow, they're all great tools.

I wrote localhost.run as a natural evolution from a SSH reverse tunnel I had running on an EC2 instance, I was using it to develop webhooks. I thought it was neat that I didn't have to download a client to use it so I opened it up to the world not long after.

webhook.site looks great, I've been using requestbin.com for years which is a similar tool. I'd place these in my pre-development toolkit, where I only want to see the shape of hooks rather than react to them. Once I start working on handling those webhooks tho I find it more useful to pull development back to my local development environment, and that's where a tunneling tool like localhost.run can speed up my feedback loop significantly.

I hope you too find it useful, please do tell me more about something you use it for in the future!