The AutoRABIT platform for Salesforce DevOps delivers the fastest CI/CD & Automated Release Management tools for Salesforce application deployments.
CodePen - A front end web development playground.
ConfigCat - ConfigCat is a developer-centric feature flag service with unlimited team size, awesome support, and a reasonable price tag.
JSFiddle - Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
FlipperCloud.io - Control Your Code. Instantly. Without configuring or deploying it.
JS Bin - Sample of the bin:
LaunchDarkly - LaunchDarkly is a powerful development tool which allows software developers to roll out updates and new features.