DEV Community

Cover image for Every VS Code extension a JavaScript web developer should have in 2021 (with gifs!)
Zak Laughton
Zak Laughton

Posted on • Updated on • Originally published at

Every VS Code extension a JavaScript web developer should have in 2021 (with gifs!)

Visual Studio Code is a powerful editor out of the box, but there are many many VS Code extensions to make it even more powerful!

If you're new to VS Code or coding in general, I recommend reading through everything here to see if there are new ways you can optimize your workflow. If you're a VS Code veteran, see if there's anything here you don't have, and let me know in the comments if I missed anything!

VS Code is constantly updating, and I regularly review my extensions to figure out which ones are and are not adding value. I'll be keeping this list updated as I add and remove extensions.

Must-have extensions (alphabetical)

  1. Better Comments

    Better Comments demo gif
    Better Comments shows your comments as different colors depending on how they're prefixed. Great to quickly visually scan and identify important pieces of your code. Keep in mind these colors only show if you have the extension, so this is best for personal use cases.


    Have you ever been working on a feature that involves 10 functions across several files, forcing you to hop around and re-find each function? Bookmarks helps you keep track of all the code that's important to you. Just add a bookmark to easily find your spot later!

  3. Bracket Pair Colorizer

    Bracket Pair Colorizer demo gif
    Trying to find missing parenthesis is my least favorite programming activity. Luckily, Bracket Pair Colorizer makes this a lot easier by color-coding all corresponding parenthesis and brackets. (NOTE: This one has some known performance issues, and theres a beta version of Bracket Pair Colorizer 2 out to fix this. Thanks for the tip, @garret_alex)

  4. change-case

    change-case demo gif
    change-case gives an easy way to change a word or variable name to all sorts of cases including camelCase, snake_case, TitleCase, and more!

  5. Code Spell Checker

    Code Spell Checker demo gif
    Code Spell Checker finds typos and misspelled words, even if they're in the middle of a variable name. This is one I didn't truly realize the value of until I had it installed and started finding all my little typos. Turns out, having a spell checker in a code editor is just as useful as having one in a word processor!

  6. ES7 React/Redux/GraphQL/React-Native snippets

    Snippets demo gif
    ES7 Snippets has so many useful tools for autofilling in boilerplate text. Saves a ton of time whenever I'm writing imports or React components.

  7. ESLint

    ESLint demo gif
    ESLint is a great linter that will pick out syntax errors for you in your code to catch issues before you even run your code. Requires configuration of ESLint in your project.

  8. GitLens

    GitLens demo gif
    GitLens is a feature-packed extension that gives you all sorts of insight into your repository's commit history. Personally, I use it most often to see who wrote code inline, see previous versions of files, and compare HEAD to other commits/branches.

  9. glean

    glean demo gif
    If you're a React developer, you probably often find yourself breaking out large components into smaller ones in separate files as well as switching between class and functional components. glean automates all this for you and automatically inserts all the needed boilerplate.

  10. Import Cost

    Import Cost demo gif
    Import Cost helps you to be cognizant of the size of your imports. It shows the size of each import inline, and shows in red and yellow warning colors if the import is larger than normal.

  11. indent-rainbow

    indent-rainbow demo gif
    indent-rainbow makes it effortless to see indents at a glance. Plus, it's super pretty, right?

  12. javascript console utils

    javascript console utils demo gif
    Find yourself console.log()-ing a lot? javascript console utils automates this for you by inserting console.log() statements into your code, complete with the plaintext variable name and variable value. There's even a hotkey to remove all console.log() statements when you're done with them!

  13. Prettier

    Prettier demo gif
    This one's important. I'd even go as far as to say that nobody should code without Prettier. Prettier auto-formats your code with alt + shift + F, or you can have it auto-format on every save. This saves a TON of time over remembering every semicolon and indent.

  14. Relative Path

    Relative Path demo gif
    Ever work in a large codebase trying to figure out how to reference another file? Exactly how many ../'s do you need to get back to the proper directory, then what's the path back down? Relative Path lets you search all files and auto-inserts the path relative to the file you're in. No tree counting needed!

  15. Settings Sync

    There's not a great way to demo this one, so here's my favorite gif of all time instead:
    Cat and Shaq wiggling So, about the extension: When you've got a sweet setup in your editor, Settings Sync gives a painless way to sync all your VS Code settings and extensions across your workstations by saving your configuration to a GitHub gist. They've even made several improvements over the past year to make syncing/authentication much easier.
  16. Toggle Quotes

    Toggle Quotes demo gif
    With Toggle Quotes, just use + ' (or ctrl + ') to cycle your strings between using `, ', and "

  17. Version Lens

    Version Lens demo gif
    It can be a hassle to keep track of all the latest versions of your npm packages. Version Lens shows you inline how your installed versions in package.json compare to the current versions.


These items don't dramatically improve my day-to-day productivity, but golly, I sure do like them:

  • Dracula Offical – my preferred color theme
  • file-icons – gives unique file icons to quickly identify types in the file browser. I find it most useful for quickly distinguishing between .ts, .js, .test.ts, & .test.js. Screenshot of file browser with icons
  • Fira Code – a spiffy-looking font that includes some sweet ligatures! This means that inequality symbols such as <= and !== show up as a single character. It hasn't improved my coding, per se, but it has made me feel cooler. Screenshot of ligatures ℹ️ Other ligatured fonts recommended by readers: JetBrains Mono, Cascadia Code, Recursive Sans & Mono

NOTE: Ligatures can be a controversial topic among coders. My argument for using them is that I think they're sexy. I rest my case.

  • Vim – When I first started coding, I got really into becoming a Vim editor power user. The functionality of VS Code goes far beyond the utility I get from Vim, but sometimes I miss those old "Change 100 lines with 5 cryptic keystrokes" features. I mostly leave this disabled, but I fire it up every once in a while when I'm feeling spunky.

Extensions I no longer use

Sometimes I stop using an extension because the functionality is added to base VS Code, or maybe the extension isn't as useful as I once thought it was. Here are some extensions I used heavily once, but eventually uninstalled:

Anything else?

What did I miss? Is there any other extension that helps you be a productive coder? Please let me know in the comments!

Did you find this this article useful? Feel free to subscribe to my articles below or follow me on Twitter for more developer tips and article announcements!

Top comments (12)

cadams profile image
Chad Adams • Edited

If you like Fira Code checkout JetBrains Mono personally I like JetBrains Mono more.

mittalyashu profile image
Yashu Mittal

That's a good looking Mono font.

I suggest you should also try the Cascadia font, it is free and open source.

Prior to this, if there was any other font I want to use that was Operator Mono since it was really expensive I couldn't buy it.

and when I came across Cascadia font, I was like

zaklaughton profile image
Zak Laughton

Ooh, that does look nice. I like the comparisons they have on the site too. Might have to try this out. Thanks for sharing!

zaklaughton profile image
Zak Laughton

Nice! Looks like this is was disabled in my editor for some reason. Probably was disabled when I installed the other extensions. Works great in .html files! Hopefully the VS Code team can do the same for React JSX soon too 🤞.

zaklaughton profile image
Zak Laughton

Yikes, thanks for the heads up! I have been noticing issues related to this lately, but didn't realize it was being caused by the extension itself. I've uninstalled it and updated the post.

I haven't seen VS Code natively auto-update corresponding tags in HTML files or JSX in React.js files, unfortunately. Would love to see this functionality without the performance issues.

paul7337 profile image

Great article, thanks! Rainbow CSV is occasionally quite useful to have around.

anandshenoy14 profile image
Anand Shenoy

I dont know how Search Node Modules did not make your list. Just a terrific way to jump and debug node modules.

frankmuts profile image

Just a small thing:
The link to "javascript console utils" is wrong, it brings you to "indent-rainbow"

zaklaughton profile image
Zak Laughton

Oops...fixed it. Thank you!

fat_tonyy profile image

html.mirrorcursoronmatchingtag was buggy as well, use this instead which came with version 1.44
"editor.renameOnType": true,

elanandkumar profile image
Anand Kumar

Fira code and Jetbrains Mono is good but would suggest to try this out;

After using this, I stopped thinking about Dank Mono and Operator mono. :)

faahdnoor profile image
Fahad Noor

Debugger For Chrome, Local History, and Tech Debt Tracker are also handy.