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• It's suitable for multi-page forms, quizzes, scored surveys, calculator forms, and survey pop-ups
• Integration with React, Angular, Vue, jQuery, and Knockout
• Compatible with any server & database
• Integration examples for PHP, ASP.NET Core, and NodeJS
• All data is stored on your own servers; therefore, there are no limits on the number of forms, submissions, and file uploads
• 20+ accessible input types, panels for question grouping, dynamic questions with a duplicate group option
• Input validation, partial submits & auto-save, lazy loading, load choices from web services
• Custom input fields
• Carry forward responses, text piping, autocomplete
• Integration with 3rd-party libraries and payment systems
• Support for webhooks
• Expression language (Built-in & Custom Functions), data aggregation within a form
• TypeScript support
• Auto-localization and multi-locale surveys, support for RTL languages
• Weekly updates
• 120+ starter demos & tutorials
• Community-supported UI localization to 50+ languages
• Built-in themes and CSS customization
• e-Signature field
• Image capture
• All popular types of form navigation

• Angular
• React
• Vue
• jQuery
• Knockout

• Website
• Documentation
• Starter Demos
• What's New

• Form Library - A free and open-source MIT-licensed JavaScript library that renders dynamic JSON-based forms in your web application, and collects responses.
• Survey Creator - A self-hosted drag-and-drop form builder that automatically generates JSON definition (schemas) of your forms in real time. Try out a free full-featured demo to evaluate its capabilities.
• Dashboard - Simplifies survey data visualization and analysis with interactive and customizable charts and tables.
• PDF Generator - An open-source JavaScript library that renders SurveyJS surveys and forms as PDF files in a browser. With PDF Generator you can save an unlimited number of custom-built forms to PDF (both editable and read-only).

The instructions below apply to SurveyJS Form Library for React, Knockout, jQuery, and Vue 2. If you are looking for instructions on how to build the library for Angular or Vue 3, refer to README files within the survey-angular-ui or survey-vue3-ui packages.

1. Clone the repo

   git clone https://github.com/surveyjs/survey-library.git
   cd survey-library

2. Install dependencies
   Make sure that you have Node.js v14 or later and a compatible npm version installed.

   npm install -g karma-cli
   npm install

3. Build the platform-independent part and plugins

   npm run build_core
   npm run build-plugins
   

4. Build the library

   npm run build
   

   You can find the built scripts and style sheets in folders under the build directory.

5. Run test examples

   npm run serve
   

   This command runs a local HTTP server at http://localhost:7777/.

6. Run unit tests

   npm run test
   

   The unit tests use Karma.

SurveyJS Form Library is distributed under the MIT license.