prototyping

Collection of custom elements that appear hand drawn. Great for wireframes or a fun look.

Design and prototype customized UI, interaction, navigation, transition and animation for App Store ready Apps in Interface Builder with IBAnimatable.

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

Penpot - The Open-Source design & prototyping platform

🎨 React application prototyping tool for developers and designers 🏗️

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

🐣 vue GUI generator

Turn Python scripts into handouts with Markdown and figures

DEPRECATED: Multiplatform GUI Prototyping/Wireframing

Quickly try out any Swift pod or framework in a playground

🧪 Prototyping Tool for exporting React/Typescript Applications!

A Ruby DSL for prototyping card games.

✔️ Mock data for your prototypes and demos. Remote deployments to Zeit now.

Browser-based MDX editor

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

IBM TJBot

Charm: A Framework for Rapidly Prototyping Cryptosystems

An innovative front-end environment for interactive Laravel development

Fake JSON Server is a Fake REST API that can be used as a Back End for prototyping or as a template for a CRUD Back End.

Semantic Import from Sketch to Framer

Rapidly create HTML prototypes of GOV.UK services

Operator Discretization Library https://odlgroup.github.io/odl/

A prototyping component library

Standalone Devtools for prototyping & debugging

A Rails Engine framework that helps safe and rapid feature prototyping

A design tool, built using Recoil.

👷 The aim of this project is to help you to build your things. From Bootstrap themes over static websites to single page applications.

Sketchize is built for UI/UX Designers to help them design lovely apps for mobile, tablet, and desktop devices.