PHP 7+ Payment processing library. It offers everything you need to work with payments: Credit card & offsite purchasing, subscriptions, payouts etc. - provided by Forma-Pro. Reduce Your Development Time with Payum integrating more than 50 payment services simultaneously. Payum is one of the most popular bug-free solution that has over 1 000 000 downloads already. It is friendly for all top PHP frameworks and was successfully installed and tested by thousands of developers worldwide

• Payum @ GitHub.

Guzzle is a PHP HTTP client that makes it easy to send HTTP requests and trivial to integrate with web services.

PHP implementation of Fowler's Money pattern. PHP library to make working with money safer, easier, and fun ! You shouldn't represent monetary values by a float. Wherever you need to represent money, use this Money value object. Since version 3.0 this library uses strings internally in order to support unlimited integers.

Vowpal Wabbit provides fast, efficient, and flexible online machine learning techniques for reinforcement learning, supervised learning, and more. It is influenced by an ecosystem of community contributions, academic research, and proven algorithms. Microsoft Research is a major contributor to Vowpal Wabbit.

The react library to build dashboards fast. Tremor lets you create simple and modular components to build insightful dashboards in a breeze. Fully open-source, made by data scientists and software engineers with a sweet spot for design.

Realistic engineering hiring assessments. We've looked carefully through hundreds of public repositories and ranked each of them using a 5 ⭐️ scale to help you find an effective take-home assessment.

A forward-thinking library of web components.

A collection of professionally designed, every day UI components built on Web standards. Works with all framework as well as regular HTML/CSS/JS. 🥾

• Shoelace @ GitHub.

A JavaScript library for structured state. Database engine for javascript. The reactive data store for local‑first apps.

TinyBase lets you listen to changes made to any part of your data. This means your app will be fast, since you only spend rendering cycles on things that change. The optional bindings to React and pre-built components let you easily build fully reactive UIs on top of TinyBase. You even get a built-in undo stack, and developer tools!

• TinyBase @ GitHub.

A cross-browser library of CSS animations.

Animate.css is a library of ready-to-use, cross-browser animations for use in your web projects. Great for emphasis, home pages, sliders, and attention-guiding hints.

• Animate.css @ GitHub.

Interactive game and app development library for TS, Haxe and JS.

OpenFL implements the Flash Player API, but goes everywhere that browser plug-ins cannot. Use a familiar and battle-tested workflow to accelerate development. You can even leverage Adobe Animate as an integrated art pipeline.

• OpenFL @ GitHub.

Neural Network Libraries NNabla is a deep learning framework that is intended to be used for research, development and production. We aim it running everywhere like desktop PCs, HPC clusters, embedded devices and production servers.

• NNabla @ GitHub.

Polymer is a lightweight library that helps you take full advantage of Web Components.

With Web Components, you can create reusable custom elements that interoperate seamlessly with the browser’s built-in elements, or break your app up into right-sized components, making your code cleaner and less expensive to maintain.

Polymer sprinkles a bit of sugar over the standard Web Components APIs, making it easier for you to get great results.

• Polymer @ GitHub.

Inferno is an insanely fast, React-like library for building high-performance user interfaces on both the client and server.

• InfernoJS @ GitHub.

a JavaScript library for interactive maps. Leaflet is the leading open-source JavaScript library for mobile-friendly interactive maps. Weighing just about 33 KB of JS, it has all the mapping features most developers ever need.

Easy GPGPU. The easy way to supercharge your number-crunching.

turbo.js is a small library that makes it easier to perform complex calculations that can be done in parallel. The actual calculation performed (the kernel executed) uses the GPU for execution. This enables you to work on an array of values all at once.

• turbo.js @ GitHub.

Dungeon generator that produces a 2D-array of different values that can be used to create a dungeon for a game. The script is written in Perl and generates a gif image of the dungeon.

A composable charting library built on React components.

Recharts is a Redefined chart library built with React and D3. The main purpose of this library is to help you to write charts in React applications without any pain.

• Recharts @ GitHub.

A tailorable jQuery plugin to deal with the EU Cookie Law.

Awesomplete is an ultra lightweight, customizable, simple autocomplete widget with zero dependencies, built with modern standards for modern browsers.

• Awesomplete @ GitHub.

This widget is used for transforming a hierarchy HTML lists with input's into a hierarchial tree select tool. You can also call this widget with a structured JSON list and it will convert it to an HTML hierarchy select tool of those items.

A pure PHP library for reading and writing spreadsheet files

PHP Solr client, opensource Solr client library for PHP applications.

Solarium is a PHP Solr client library that accurately models Solr concepts. Where many other Solr libraries only handle the communication with Solr, Solarium also relieves you of handling all the complex Solr query parameters using a well documented API.

• Solarium @ GitHub.

Rich_TextArea is a jQuery plugin replacement for the venerable HTML TEXTAREA that adds arbitrary triggered autocompletes along with the insertion of rich “embedded objects” included images, links, or any other markup.

Categorize, sort, and filter a responsive grid of items.

• Shuffle @ GitHub.

php errors for cool kids.

whoops is an error handler framework for PHP. Out-of-the-box, it provides a pretty error interface that helps you debug your web projects, but at heart it's a simple yet powerful stacked error handling system.

• whoops @ GitHub.

An open source web scraping framework for Python.

Scrapy is a fast high-level screen scraping and web crawling framework, used to crawl websites and extract structured data from their pages. It can be used for a wide range of purposes, from data mining to monitoring and automated testing.

• Scrapy @ GitHub

a fast and fully-featured autocomplete library.

The typeahead.js library consists of 2 components: the suggestion engine, Bloodhound, and the UI view, Typeahead. The suggestion engine is responsible for computing suggestions for a given query. The UI view is responsible for rendering suggestions and handling DOM interactions. Both components can be used separately, but when used together, they can provide a rich typeahead experience.

• typeahead.js @ GitHub.

HTML5 Canvas Heatmap Library. 🔥 JavaScript Library for HTML5 canvas based heatmaps

heatmap.js is a JavaScript library that can be used to generate web heatmaps with the html5canvas element based on your data. Heatmap instances contain a store in order to colorize the heatmap based on relative data, which means if you're adding only a single datapoint to the store it will be displayed as the hottest(red) spot, then adding another point with a higher count, it will dynamically recalculate. The heatmaps are fully customizable.

• heatmap.js @ GitHub.