When comparing Brackets vs IntelliJ IDEA, the Slant community recommends IntelliJ IDEA for most people. In the question“What are the best IDEs for Node.js?” IntelliJ IDEA is ranked 8th while Brackets is ranked 9th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Built-in browser live-updating
Brackets will automatically refresh the browser and load the latest saved version of a file open in the browser. This works with php as well. Editing a css will even highlight the tag that's currently being worked on. However, it only works with Chrome.
Pro Lightweight
Brackets is easy on memory usage and it starts up quickly.
Pro Free, open source and cross-platform
Brackets is entirely free and open source.
Pro Built-in extension manager
The functionality of Brackets can be extended via a simple-to-use extension manager. The extension manager also has a considerable number of extensions and themes.
Pro Can style a tag without switching over to the stylesheet
A feature called "Quick Edit" allows the user to select a tag in (a html file, for example) and edit the associated style without switching over to the css document. It also supports SASS and LESS pre-processors.
Pro Actively developed
Brackets is being actively maintained and developed.
Pro Popup previews
Hovering over colors hex codes or image paths will pop up previews of corresponding colors and images.
Pro Drag and drop support
Brackets supports drag and drop of text, as well as multi / rectangular selection.

Pro Can be hacked by any front-end developer
The editor is built using html, css, and javascript, making it extendable by any front-end developer.
Pro Multi-line (multi-query) editing
You can have your cursor independently on multiple lines and so creating templates and/or editing multiple things at once is really fast and easy.
Pro Vim mode
Vim-style editing is already built in the text editor.

Pro Support for Adobe PSD content
A default extension allows for the extraction of PSD resources, such as images and styles. There's good integration for placing extracted resources into source.
Pro Great Java Support
Pro A good editor for test-driven development
IntelliJ IDEA is really easy to work with when it comes to test-driven development in Java and JavaScript/TypeScript.
Pro Great JavaScript support
Pro Markdown support with preview
Pro Supports PHP quite well
Pro Great TypeScript support
Really good support for importing classes, libraries, etc. into a typescript class. Making it easy to do TDD.
Pro Good BASH script support
Pro Angular CLI support
Pro Made by developers for developers
It can make one more efficient, but also can get one way too used to shortcuts, autocomplete, and easy debugging.
Cons
Con Still missing some elementary text editor commands
Some gaps have to be filled by plugins, while these features should be built in.
For example:
- Jump to matching brace (bracket / parenthesis);
- Gutter selection of lines;
- Recall previous searches / replacements;
- Autofill of search field with text under caret (text has to be selected);
- Show whitespace / end of lines / indentation guides / right margin;
- Selection to upper / lower case;
and some more.
Con Problematic updater
Though the website says there is an update available, the updater in Brackets may give you an error, resulting in you having to download updates manually.

Con Slow
Con Supports only web languages by default <but>
Brackets is built for web development and that's where it excels at out of the box. Other languages that have a CodeMirror mode can be added as well.
<and language support plugins can be added>
Con Is not free
But it does have a free version (Community Edition).
Con Heavy
Consumes more resources than VSCode etc. But depending on your use-case, it can still be worth it for the benefits you get with this editor.
Con Autocomplete does not work while IntelliJ is indexing
But this, in general, is not much of an issue. Usually after npm install, etc.
