Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
highlight.js - Highlight.js is a syntax highlighter written in JavaScript. It works in the browser as well as on the server.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Apache Tika - Apache Tika toolkit detects and extracts metadata and text from different file types.
Better Uptime - We call you when your website goes down
Bootstrap Table - Bootstrap Table has been designed to reduce development time and to require no specific knowledge from developers.