[![npm version](https://badge.fury.io/js/enketo-core.svg)](http://badge.fury.io/js/enketo-core) [![Build Status](https://travis-ci.com/enketo/enketo-core.svg?branch=master)](https://travis-ci.org/enketo/enketo-core) [![Dependency Status](https://david-dm.org/enketo/enketo-core/status.svg)](https://david-dm.org/enketo/enketo-core) [![devDependency Status](https://david-dm.org/enketo/enketo-core/dev-status.svg)](https://david-dm.org/enketo/enketo-core?type=dev) [![Codacy Badge](https://api.codacy.com/project/badge/Grade/dc1c5aaa9267d75cbd2d6714d2b4fa32)](https://www.codacy.com/app/martijnr/enketo-core?utm_source=github.com&utm_medium=referral&utm_content=enketo/enketo-core&utm_campaign=Badge_Grade) Enketo Core =========== The engine that powers [Enketo Smart Paper](https://enketo.org) and various third party tools including [this selection](https://enketo.org/about/adoption/). Enketo's form engine is compatible with tools in the ODK ecosystem and complies with its [XForms specification](https://getodk.github.io/xforms-spec/) though not all features in that specification have been implemented yet. This repo is meant to be used as a building block for any Enketo-powered application. See [this page](https://enketo.org/develop/#libraries) for a schematic overview of a real-life full-fledged data collection application and how Enketo Core fits into this. **To get started visit our [technical documentation](https://enketo.github.io/enketo-core).** Follow the [Enketo blog](https://blog.enketo.org) or [Enketo on twitter](https://twitter.com/enketo) to stay up to date. ### Browser support The following browsers are officially supported: * latest Android webview on latest Android OS * latest WKWebView on latest iOS * latest version of Chrome/Chromium on Mac OS, Linux, Windows, Android and iOS * latest version of Firefox on Mac OS, Windows, Linux, Android and iOS * latest version of Safari on Mac OS, Windows, and on the latest version of iOS * latest version of Microsoft Edge We have to admit we do not test on all of these, but are committed to fixing browser-specific bugs that are reported for these browsers. Naturally, older browsers versions will often work as well - they are just not officially supported. [Here is some guidance](https://enketo.github.io/enketo-core/tutorial-90-ie11.html) that may be helpful when trying to create a build that possibly runs on Internet Explorer 11. ### Sponsors The development of this library was sponsored by: * [OpenClinica](https://www.openclinica.com/) * [Sustainable Engineering Lab at Columbia University](http://modi.mech.columbia.edu/) * [WHO - HRP project](http://www.who.int/reproductivehealth/topics/mhealth/en/index.html) * [Santa Fe Insitute & Slum/Shack Dwellers International](http://www.santafe.edu/) * [Enketo LLC](http://www.linkedin.com/company/enketo-llc) * [iMMAP](http://immap.org) * [KoBo Toolbox (Harvard Humanitarian Initiative)](https://kobotoolbox.org) * [Ona](https://ona.io) * [Medic Mobile](http://medicmobile.org/) * [Esri](https://esri.com) * [DIAL Open Source Center](https://www.osc.dial.community/) ### Performance (live) See [graphs](https://github.com/enketo/enketo-core-performance-monitor#live-results) ### License See [license](https://github.com/enketo/enketo-core/blob/master/LICENSE) document and additional clause below: Any product that uses enketo-core is required to have a "Powered by Enketo" footer, according to the specifications below, on all screens in which enketo-core or parts thereof, are used, unless explicity exempted from this requirement by Enketo LLC in writing. Partners and sponsors of the Enketo Project, listed on [https://enketo.org/about/sponsors/](https://enketo.org/about/sponsors/) and on [this page](#sponsors) are exempted from this requirements and so are contributors listed in [package.json](https://github.com/enketo/enketo-core/blob/master/package.json). The aim of this requirement is to force adopters to give something back to the Enketo project, by at least spreading the word and thereby encouraging further adoption. Specifications: 1. The word "Enketo" is displayed using Enketo's logo. 2. The minimum font-size of "Powered by" is 12 points. 3. The minimum height of the Enketo logo matches the font-size used. 4. The Enketo logo is hyperlinked to https://enketo.org Example: Powered by