Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
Postman - The Collaboration Platform for API Development
memcached - High-performance, distributed memory object caching system
Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
TestComplete - TestComplete Desktop, Web, and Mobile helps you create repeatable and accurate automated tests across multiple devices, platforms, and environments easily and quickly.