code-prettify - Code Prettify is an embeddable script that makes source-code snippets in HTML prettier.

Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.

highlight.js - Highlight.js is a syntax highlighter written in JavaScript. It works in the browser as well as on the server.

Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Apache Tika - Apache Tika toolkit detects and extracts metadata and text from different file types.

Facebook Messenger - Facebook Messenger is a faster way to message.