FireKit is a collection of quality tools designed to make the lives of marketers and bootstrappers easier. It offers a range of free tools and a weekly newsletter sharing experiences, articles, videos, and memes.
To use FireKit, simply visit the website and explore the available tools. Each tool has a specific purpose and user interface, so follow the instructions provided for each tool. Additionally, you can subscribe to the free newsletter by entering your first name and email address on the website and clicking 'Sign up'.