Zapier is an online automation tool that connects your favorite apps and services to streamline workflows and automate repetitive tasks. With Zapier, users can create "Zaps," which are automated workflows that trigger actions across different apps based on specific conditions. It supports thousands of apps, including Google Sheets, Slack, Gmail, and many more, allowing users to connect and automate tasks without needing to write any code. Zapier is ideal for increasing efficiency and productivity by reducing manual data entry and repetitive tasks.