Immutable data cannot be changed once created, leading to much simpler application development, no defensive copying, and enabling advanced memoization and change detection techniques with simple logic. Persistent data presents a mutative API which does not update the data in-place, but instead always yields new updated data. Immutable.js provides many Persistent Immutable data structures including: List, Stack, Map, OrderedMap, Set, OrderedSet and Record.
 
Immutable.js has no dependencies, which makes it predictable to include in a Browser. Immutable.js is inspired by Clojure, Scala, Haskell and other functional programming environments, it's designed to bring these powerful concepts to JavaScript, and therefore has an Object-Oriented API that closely mirrors that of ES2015 Array, Map, and Set.

Immutable data cannot be changed once created, leading to much simpler application development, no defensive copying, and enabling advanced memoization and change detection techniques with simple logic. Persistent data presents a mutative API which does not update the data in-place, but instead always yields new updated data. Immutable.js provides many Persistent Immutable data structures including: List, Stack, Map, OrderedMap, Set, OrderedSet and Record.

Immutable.js - Immutable collections for JavaScript

OpenRefine (previously Google Refine) is a powerful tool for working with messy data: cleaning it; transforming it from one format into another; and extending it with web services and external data.



OpenRefine - Powerful tool for working with messy data

ApexCharts is a modern charting library that helps developers to create beautiful and interactive visualizations for web pages. It is flexible and responsive - making your charts work on desktops, tablets as well as mobiles. It is interactive Zoom, Pan, Scroll through data, toggle datasets visibility in multiple series. The dynamic nature of ApexCharts allows you to load data on selections and create other charts based on those selections. 
 
ApexCharts provides a smooth interactive experience when changing datasets, loading dynamic data and interacting with the charts. Annotate your charts by placing labels on top of it to help your users interpret charts easily. You may add annotations on both the axes as well as on a particular xy point.

ApexCharts is a modern charting library that helps developers to create beautiful and interactive visualizations for web pages. It is flexible and responsive - making your charts work on desktops, tablets as well as mobiles. It is interactive Zoom, Pan, Scroll through data, toggle datasets visibility in multiple series. The dynamic nature of ApexCharts allows you to load data on selections and create other charts based on those selections. 



ApexCharts.js - A modern JavaScript charting library to build interactive charts and visualizations with simple API

Altair is a beautiful feature-rich GraphQL Client IDE for all platforms. It enables you interact with any GraphQL server you are authorized to access from any platform you are on.
Much like Postman for GraphQL, you can easily test and optimize your GraphQL implementations.

Altair - The only GraphQL client editor you will need - Postman for GraphQL

Immutable data cannot be changed once created, leading to much simpler application development, no defensive copying, and enabling advanced memoization and change detection techniques with simple logic. Persistent data presents a mutative API which does not update the data in-place, but instead always yields new updated data.
 
immutable.js provides many Persistent Immutable data structures including: List, Stack, Map, OrderedMap, Set, OrderedSet and Record. These data structures are highly efficient on modern JavaScript VMs by using structural sharing via hash maps tries and vector tries as popularized by Clojure and Scala, minimizing the need to copy or cache data.

Immutable data cannot be changed once created, leading to much simpler application development, no defensive copying, and enabling advanced memoization and change detection techniques with simple logic. Persistent data presents a mutative API which does not update the data in-place, but instead always yields new updated data.

Immutable-js - Immutable persistent data collections for Javascript which increase efficiency and simplicity

Easily generate patterns for use in data graphics. Usually while creating charts, plain color will be used. Using  Patternomaly, you can have patterns on top of the color. This will help people with color blindness to identify the charts.

Patternomaly - Easily generate patterns for use in data graphics

ownCloud gives you universal access to your files through a web interface or WebDAV. It also provides a platform to easily view & sync your contacts, calendars and bookmarks across all your devices and enables basic editing right on the web. Installation has minimal server requirements, doesn’t need special permissions and is quick. ownCloud is extendable via a simple but powerful API for applications and plugins.

ownCloud - A personal cloud which runs on your own server

Metabase is the easy, open source way for everyone in your company to ask questions and learn from data. Get a real-time glimpse into what your company is learning about your data. Activity helps people in your company find an answer, jump start their own exploration, or improve existing questions. 

Metabase - The simplest, fastest way to get business intelligence and analytics  to everyone in your company

CrypTag is an idea, a spec, an API, and a piece of software that makes it easy to build a zero-knowledge system, which means that the server holding user data doesn't know what it is (since it's encrypted).
 
It is meant as a primitive to be used to build more sophisticated systems that would rather not re-implement the pieces necessary to build a zero-knowledge system, but several useful command line applications have been built with it so far, namely cput (for encrypting/saving files), cget (for fetching/decrypting files), and cpass (CryptPass, a password manager).

CrypTag is an idea, a spec, an API, and a piece of software that makes it easy to build a zero-knowledge system, which means that the server holding user data doesn't know what it is (since it's encrypted).

Cryptag - Encrypted, taggable, searchable cloud storage

Educate and Empower software professionals in open source tools and technologies.

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