Alternativer til LibPixel til Gravity Forms med open source-licens

• Gravity Forms
  Alle platforme Windows Mac Linux Chrome OS Android iPhone iPad Web Software as a Service (SaaS) PHP JavaScript Python Wordpress Java Shopify Django Ruby Joomla React Squarespace AngularJS WiX.com Ruby on Rails TinyMCE Drupal CKEditor Zapier Laravel Objective-C Webflow Meteor Amazon Simple Storage Service Redactor Text Editor Gravity Forms Bower Bitrix24 JotForm Netlify CMS cdnjs
• Open Source-licens
  Enhver licens Gratis licens Open Source-licens Kommerciel licens