Simplify data collection in your JavaScript application with SurveyJS UI components. Create and style dynamic JSON-based forms using a fully integrated form builder that features a CSS theme editor and GUI for conditional rules and form branching.

experts Open Source freemium $499.0 / One-off (1 developer license, unlimited form creators)

Skia is an easy-to-use and user-friendly 2D Graphics Library that comes with many prominent APIs for usage in software and hardware platforms.

experts Open Source

A small framework for server-rendered universal JavaScript apps

experts Open Source

Lightweight JavaScript animation library

experts Open Source

AngularJS lets you extend HTML vocabulary for your application. The resulting environment is extraordinarily expressive, readable, and quick to develop.

experts

A declarative, efficient and flexible JavaScript library for building user interfaces.

experts Open Source

Swiper is the most modern free mobile touch slider with hardware accelerated transitions and amazing native behavior.

experts Open Source

Angular is a JavaScript web framework for creating single-page web applications. The code is free to use and available as open source. It is further maintained and heavily used by Google and by lots of other developers around the world.

experts

A JavaScript library for building user interfaces

experts Open Source

ReactiveX is a library for composing asynchronous and event-based programs by using observable sequences.

experts Open Source

A JavaScript 3D library which makes WebGL simpler.

experts Open Source