The Pencil Project's unique mission is to build a free and opensource tool for making diagrams and GUI prototyping that everyone can use.

🎨 React application prototyping tool for developers and designers 🏗️

DEPRECATED: Multiplatform GUI Prototyping/Wireframing

🐣 vue GUI generator

Browser-based MDX editor

IBM TJBot

🚧 Build web pages with Vuse, the next-gen interactive page builder powered with Vue.js.

Semantic Import from Sketch to Framer

Rapidly create HTML prototypes of GOV.UK services

Standalone Devtools for prototyping & debugging

MagJS - Modular Application Glue

Inject hardware interactions directly into HTML layout.

A Sketch plugin that exports Sketch artboards into clickable HTML file and publishes it on an external site.

A simple GUI for inspecting and changing JavaScript variables

HTTP proxy to inject scripts and stylesheets into existing sites.

Frontend Playground

walkiebot opensource

Axure Interactive Redline Tool

A fake auth service for prototyping authentication flows

Opinionated wrapper for quick prototyping with React, Redux and Firebase

Wyliodrin STUDIO

IDE for IoT & friends

🍀Minimal Node.js Template (Flow, ESLint, Jest, Babel, Debugging)

RouteInjector CRUD prototyper

Form prototyping framework for React Advanced Form. Tailor production-ready forms in a matter of minutes. Write the logic, do the styles later.

🎛 A control panel for developing/prototyping React UI

Quick prototyping for computer vision software