Appsmith

Appsmith is an open-source platform for rapidly building internal tools, dashboards, and business applications without having to code everything from scratch. It provides a visual interface to assemble user interfaces, connect to data sources, and define application logic, enabling teams to ship production-ready tools significantly faster. Its primary purpose is to help developers and technical teams create reliable, maintainable custom software on top of existing systems and APIs.

The platform includes a drag-and-drop UI builder with a wide range of pre-built widgets such as tables, forms, charts, and modals, all of which can be customized with JavaScript. Appsmith connects to databases (PostgreSQL, MySQL, MongoDB, etc.), REST and GraphQL APIs, and SaaS services, allowing users to query, transform, and display data securely. It supports role-based access control, environment management, and version control integrations, making it suitable for collaborative development across teams. Built-in features like JS-powered business logic, query editors, and event-driven workflows reduce boilerplate code and simplify complex interactions.