FlowLens is an open-source MCP server that gives your coding agent (Claude Code, Cursor, Copilot, Codex) full browser context for in-depth debugging and regression testing. - magentic/flowlens-mcp-server

Kottster is an instant admin panel for your app. It's self-hosted, built with Node.js and allows you to generate pages and dashboards on top of your database.

native

Data is messy and disconnected. JSON-LD organizes and connects it, creating a better Web.

A BEAUTIFUL, RESPONSIVE, CUSTOMIZABLE, ACCESSIBLE (WAI-ARIA) REPLACEMENT FOR JAVASCRIPT'S POPUP BOXES
ZERO DEPENDENCIES

Storybook is a development environment for UI components. It allows you to browse a component library, view the different states of each component, and interactively develop and test components. Find out more at https://storybook.js.org.

Saltcorn is a platform for building database web applications without writing a single line of code. Use the intuitive point-and-click, drag-and-drop user interface to build the whole application.

Free and open source – MIT license.