Zapier is an online automation tool that connects different apps and services to streamline workflows. It allows users to create automated tasks, known as "Zaps," which can trigger actions in one app based on events in another. For example, when a new email arrives in Gmail, a Zap can automatically save the attachment to Dropbox. With a user-friendly interface, Zapier requires no coding skills, making it accessible for individuals and businesses alike. It supports thousands of apps, including popular ones like Slack, Trello, and Google Sheets, enabling users to enhance productivity by reducing repetitive tasks.