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Classic apps documentation

Build classic apps with rich interfaces, powered by your data.

Classic apps

You're viewing documentation for classic apps, which use Retool's original app editor. The new app builder is the recommended way to build apps and where Retool focuses new development.

Classic apps enable you to quickly build and deploy apps for your business. Connect APIs and databases, assemble user interfaces with drag-and-drop components, write queries that read and write data, and perform complex logic and transformations using JavaScript.