WebStorm is a modern jаvascript ecosystem. It includes intelligent code completion, on-the-fly error detection, powerful navigation and refactoring for jаvascript, TypeScript, stylesheet languages, and all popular frameworks.

Features
Intelligent coding assistance - WebStorm brings you smart coding assistance for jаvascript and compiled-to-jаvascript languages, Node.js, HTML and CSS. Enjoy code completion, powerful navigation features, on-the-fly error detection, and refactorings for all of these languages.
Modern frameworks - WebStorm provides advanced coding assistance for Angular, React, Vue.js and Meteor. Enjoy support for React Native, PhoneGap, Cordova and Ionic for mobile development and develop for server-side with Node.js.
Smart editor - 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 usages.

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, these tasks are much easier with WebStorm.
Debugging - 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.
Testing - Perform testing with ease, as WebStorm integrates with Karma test runner, Mocha, Jest and Protractor. 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 - WebStorm features spy-js, a built-in tool that helps you trace your jаvascript code. Explore how files are connected with function calls and efficiently identify any possible bottlenecks.

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.
Build tools - 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 ESLint, JSCS, TSLint, Stylelint, JSHint or JSLint against your code and highlight any issues on the fly, right in the editor.
Project templates - 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.
IDE features - WebStorm is built on top of the open-source IntelliJ Platform. Enjoy the fine-tuned, yet highly customizable experience it provides to fit your development workflow.
VCS - 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.
Local history - 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.
Customization - WebStorm is extremely customizable. Adjust it to perfectly suit your coding style, from shortcuts, fonts and visual themes to tool windows and editor layout.

System requirements
macOS 10.14 or higher
2 GB free RAM minimum, 8 GB of total system RAM recommended
2.5 GB hard disk space, SSD recommended
1024x768 minimum screen resolution

Homepage

https://www.jetbrains.com/webstorm/