Napkin is a browser-based code editor for quickly building, testing, and deploying serverless functions (like webhooks). The Napkin editor offers Python and Node.js runtimes out of the box with support for all PIP modules and NPM packages. There is zero configuration and setup – just start coding to see your changes deployed live.
Sign ups for the beta are open at napkin.io. As a Personal user, you get unlimited serverless functions, with up to 1 million requests/month and 250MB storage space for your function dependencies.