Napkin is a platform that allows users to create and deploy serverless cloud functions instantly, all from the browser. With Napkin, users can quickly build APIs and add authentication, schedule tasks, and replay events. The platform provides an online environment for prototyping, deploying, and sharing cloud functions. Users can write code in JavaScript or Python and deploy it as HTTP endpoints with a single button click. Napkin functions automatically scale to handle thousands of calls per day for free, without the need for configuring capacity or dealing with plan limits. The platform offers features such as task scheduling, monitoring, and deployment through a simple UI. It also provides a fully managed function scheduler with zero configuration. Napkin has over 300,000 NPM and Python modules pre-installed, allowing users to build automations and bots quickly. The Napkin editor saves code as users type and allows them to test changes with mock data before deployment. Users can also access events and traffic monitoring, as well as historic logs and request payloads. The platform has received positive feedback from users, who highlight its ease of use and efficiency in creating and iterating internal tools and scripts. Napkin aims to provide backend superpowers to everyone, without the need for installation, terminals, or complex setup. In summary, Napkin is a user-friendly and efficient platform for building and deploying APIs, offering a range of features, pre-installed modules, and a simple UI for quick and hassle-free development.