Developer builds enterprise React 19 app without any backend using free stateful mock API

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A developer named Nilesh has created Playground API, a free mock REST and GraphQL API that retains data changes within per-session sandboxes, addressing a common frustration with traditional mock APIs that reset on page refresh. To demonstrate its capabilities, he built Directory Studio, an enterprise-grade user management dashboard using React 19, Vite, and Tailwind CSS, without writing any backend or database code. The app supports full CRUD operations, live search, dynamic sorting, and dual view modes, with all changes persisting across page reloads within a user's session. The project is publicly available, with a live demo hosted on Vercel and the source code published on GitHub. Playground API requires no API keys or database configuration, making it accessible for frontend developers building prototypes or testing UI components.

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ProgrammingDEV Community ·

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