A no-code application builder is a software tool that enables users to create applications without having to write code. It provides a visual interface where users can drag and drop components, define logic and workflows, and customize the appearance of the application.

No-code application builders typically offer a range of pre-built templates and modules that can be easily customized to meet specific requirements. Users can integrate data sources, add business logic, and create user interfaces without the need for traditional programming skills.

These tools are designed to empower non-technical users, such as business analysts, entrepreneurs, or citizen developers, to create functional applications quickly and efficiently. No-code application builders abstract the complexities of coding, allowing users to focus on the application's functionality and user experience.

Some popular no-code application builders include Bubble, Adalo, OutSystems, and AppSheet. These platforms offer a range of features and customization options, enabling users to create a wide variety of applications, such as mobile apps, web apps, and workflow automation tools, all without writing a single line of code.