Monkey Test It is the only way to summon a troop of specially bred fully automated website testing monkeys to your website. These tests check for all the most commonly overlooked mistakes, including JavaScript errors, missing files (images, css, etc), broken links, and SEO issues. Don't waste time clicking around the web-inspector whenever you deploy your website, let our monkeys do the hard work.
rubular - A ruby based regular expression editor
Simple Analytics - The privacy-first Google Analytics alternative located in Europe.
RegExr - RegExr.com is an online tool to learn, build, and test Regular Expressions.
PreFlight - Preflight is an Automated Web Testing tool. Allows everyone to automate Web UI tests.
RegEx Generator - RegEx Generator is a simple-to-use application that comes with the brilliance of intuitive regex and is also helping you out to test the regex.
BugBug.io - BugBug makes test automation ultra-simple. It allows you to automate testing without coding, ensuring the quality of your web app or website without repetitive manual testing or writing a line of code.