Currently I am using CodePen.io but I want to move to a downloadable program is it is more professional and doesn't require internet.
From their web site:
Enjoy code completion, powerful navigation features, on-the-fly error detection, and refactorings.
WebStorm provides advanced coding assistance for Angular, React and Meteor. Enjoy support for PhoneGap, Cordova and Ionic for mobile development and develop for server-side with Node.js. All in one IDE!
The IDE analyzes your project to provide the best code completion results for all supported languages. Hundreds of built-in inspections report any possible issues right as you type and suggest quick-fix options.
Navigation & Search
WebStorm helps you get around your code more efficiently and save time when working with large projects. Jump to a method, function or variable definition in just one click, or search for the usage.
Debugging, tracing and testing
WebStorm provides powerful built-in tools for debugging, testing and tracing your client-side and Node.js applications. With minimum configuration required and thoughtful integration into the IDE, there tasks are much easier with WebStorm.
WebStorm provides a built-in debugger for your client-side code (that works with Chrome) and Node.js apps. Place the breakpoints, step through the code, and evaluate expressions – all without leaving the IDE.
Perform unit testing with ease, as WebStorm integrates with Karma test runner and Mocha. Run and debug tests right inside the IDE, view results in a nice and visual format, and navigate to the test code.
Tracing and profiling
Seamless tool integration
WebStorm integrates with popular command line tools for web development, providing you with a productive, streamlined development experience without using the command line.
Enjoy a simple unified UI for running Grunt, Gulp or npm tasks right from the IDE. All tasks are listed in a special tool window, so simply double-click on the task name to start it.
Code quality tools
In addition to hundreds of WebStorm’s own inspections, it can run JSHint, ESLint, JSCS or JSLint against your code and highlight any issues on the fly, right in the editor.
Start new projects from the Welcome screen using popular project templates like Express or Web starter kit, and access even more project generator thanks to integration with Yeoman.
WebStorm is built on top of the open-source IntelliJ Platform, which we at JetBrains have been developing and perfecting for over 15 years. Enjoy the fine-tuned, yet highly customizable experience it provides to fit your development workflow.
WebStorm provides a unified UI for working with many popular Version Control Systems, ensuring a consistent user experience across git, GitHub, SVN, Mercurial, and Perforce.
Whether you’re using VCS or not, Local history can be a real code saver. At any time you can inspect the history of either a particular file or directory, and roll back to any of its previous versions.
WebStorm is extremely customizable. Adjust it to perfectly suit your coding style, from shortcuts, fonts and visual themes to tool windows and editor layout.
Unlike WebStorm, CudaText editor is lite, but it supports major front-end languages (JS, CSS, PHP, JSX, LESS, SCSS, Stylus etc), and has many plugins for front-end. Free, cross-platform.
It is analog of Sublime Text editor.