Zapier is a web-based automation tool that allows users to connect various apps and automate workflows without writing any code. It works by creating "Zaps," which are automated workflows that connect two or more apps to automate a task or process. Zapier integrates with over 2,000 apps, including Gmail, Slack, Salesforce, and Trello, among others. It can automate a wide range of tasks, such as sending emails, creating tasks, updating spreadsheets, and posting social media updates. Zapier is designed for individuals and businesses that want to automate repetitive tasks, streamline workflows, and save time. It is easy to use and requires no technical knowledge, making it accessible to anyone.