jQuery is a cross-platform JavaScript library designed to simplify the client-side scripting of HTML. It is free, open-source software using the permissive MIT License. Web analysis indicates that it is the most widely deployed JavaScript library by a large margin.
PHP: Hypertext Preprocessor is a server-side scripting language designed for Web development, but also used as a general-purpose programming language. PHP code may be embedded into HTML code, or it can be used in combination with various web template systems, web content management systems, and web frameworks.
React (also known as React.js or ReactJS) is a JavaScript library for building user interfaces. It is maintained by Facebook and a community of individual developers and companies.
Flint enables small businesses in the USA to accept credit cards from their smartphone via a free mobile app without requiring extra magnetic card readers. Instead Flint uses the camera to securely capture the credit card number. Client can also type in the card numbers or send an invoice via email which their customer can pay online.
FICO Falcon Fraud Manager is a financial fraud detection software designed to help stop debit and credit card, eCommerce, check, identity, and merchant fraud.