The sandbox agent framework.

Skills for Design Engineers

A format specification for describing a visual identity to coding agents. DESIGN.md gives agents a persistent, structured understanding of a design system.

The Open Standard for Generative UI

Open-source alternative to Polotno with full template and API support.

Emdash is the Open-Source Agentic Development Environment (🧡 YC W26). Run multiple coding agents in parallel. Use any provider.

Cross-session context for Claude Code. CLI + MCP server + /story skill that tracks tickets, issues, handovers, and roadmap in a .story/ directory.

The design language that makes your AI harness better at design.

Implementation of the DTCG Design Token Spec

🍜 undo/redo middleware for zustand. <700 bytes

AGENTS.md — a simple, open format for guiding coding agents

A custom JSX pragma that enables declarative slottable components for powering asChild or render function prop patterns.

A free, open source, and extensible speech-to-text application that works completely offline.

The complete tree view component for React

Type-safe search params state manager for React frameworks - Like useState, but stored in the URL query string.

The Cursor for Designers • An Open-Source AI-First Design tool • Visually build, style, and edit your React App with AI

Unstyled UI components for building accessible web apps and design systems. From the creators of Radix, Floating UI, and Material UI.

🐒 Bundler-free build tool for TypeScript libraries. Powered by tsc.

Example of a style-dictionary workflow implementation to Tailwind V4

An open source collection of animated, interactive & fully customizable React components for building memorable websites.

There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable an…

Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.

The beautiful & flexible React.js docs framework.

SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. 🔥 🖥. 👉 Open sour…

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

Sell stuff and see what sticks

Color scale generator

Read and write OpenType fonts using JavaScript.