Appsmith

appsmith.com

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Open-source low-code platform for building internal tools and admin panels — a self-hostable alternative to Retool.

Why it is useful

Appsmith lets developers drag-and-drop UI components (tables, forms, charts) and wire them to any database or API, generating internal dashboards and CRUD apps far faster than building from scratch. Self-hosting avoids Retool's per-user pricing, which adds up quickly for teams building multiple internal tools.