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VS Code is useful on its own, but VS Code extensions let it meet you where you work. A frontend project needs a quick browser preview. A backend project may need HTTP requests and containers. A large repository needs better navigation and a way to see what changed.
That does not mean you should install every extension you find. Each one adds another process, setting, or source of suggestions to your editor. Start with the problems you actually have, then keep the extensions that remove friction without making the workspace noisy.
1. Keploy for testing and debugging
Keploy is the testing-focused choice in this list. It supports unit, integration, and API testing across languages such as Python, JavaScript, TypeScript, Java, PHP, and Go.
It can record and replay API requests, generate tests, and compare behavior across environments. That is useful when a service already has working traffic but not enough repeatable tests. If you are adding these checks to a CI/CD pipeline, keep the generated cases small enough to diagnose when they fail. Read them before keeping them, especially when captured requests contain private data.
2. Docker for container work
The Docker extension brings container tasks into the editor. You can inspect images, containers, and volumes without constantly switching to another window.
It becomes most useful when your application already runs in Docker and you need to check logs, rebuild an image, or debug inside a container. The related Docker comparison is useful if you are still deciding which container tool belongs in your workflow.
3. GitLens for repository history
GitLens puts authorship, blame information, file history, and branch comparisons close to the code you are reading.
The best use is not looking up who wrote a line so you can complain about it. It is finding the change that introduced a strange condition and reading the surrounding commit. That context can prevent you from deleting a rule that looks unnecessary today.
4. Prettier for consistent formatting
Prettier formats supported files according to a shared configuration. With format-on-save enabled, the editor applies the same layout each time you save.
Formatting does not make a bug disappear, but it keeps style debates out of many code reviews. Pair it with ESLint when you want formatting and code-quality checks to have separate jobs. Let the project configuration win over your personal preference.
5. Live Server for a quick browser preview
Live Server opens a local preview and reloads the page when you save a file. It is handy for small HTML, CSS, and JavaScript projects where setting up a full application server would be unnecessary.
It will not reproduce every detail of a production deployment, so treat it as a quick feedback loop rather than a complete test environment. That distinction matters when your page depends on a backend, build step, or special headers.
6. ESLint for JavaScript and TypeScript checks
ESLint reads JavaScript and TypeScript files against rules chosen by your project. It can catch suspicious patterns while you are typing and can report the same problems in continuous integration.
The extension is only as helpful as its configuration. Start with rules the team understands, then add stricter checks when the codebase is ready for them. If every line is covered by a warning nobody will fix, the warnings become wallpaper.
7. REST Client for requests inside VS Code
REST Client lets you keep HTTP requests in .http files and run them from the editor. You can inspect JSON or XML responses without copying the request into another application.
This is useful for keeping a small, reviewable set of API examples beside the service code. Put test credentials in environment variables or a local secret store rather than committing them into the request file.
8. Path Intellisense for file paths
Path Intellisense suggests filenames and folders as you write import statements or HTML links.
The benefit shows up in repositories with deeply nested folders, where a path typo can take longer to find than to fix. It saves a few keystrokes, but those small savings add up when you move through a project all day.
9. Markdown Preview Enhanced for documentation
Markdown Preview Enhanced gives you a live view of Markdown while you edit it. The listed features include syntax highlighting, diagrams, LaTeX, charts, and export options.
Use it when the rendered page matters as much as the source. A heading that looks fine in plain text can wrap badly, hide a broken link, or make a table hard to scan in the preview.
10. GitHub Copilot for code suggestions
GitHub Copilot can suggest code and text from the context around your cursor.
It is most useful for repetitive code, test scaffolding, and drafts that you already know how to review. It can also produce a confident answer that is wrong, insecure, or out of date. Read every accepted suggestion and run the tests that matter; speed is not a substitute for checking the result.
11. Bracket Pair Colorization for nested code
Bracket Pair Colorization uses matching colors to show which opening and closing brackets belong together.
It helps when a function contains several nested objects, arrays, or callback expressions. The extension does not fix structure for you, but it makes a missing or misplaced bracket easier to spot.
12. IntelliCode for ranked suggestions
IntelliCode changes the order and context of suggestions in IntelliSense. It is intended to help common patterns appear sooner while you type.
Treat the suggestions as a nudge, not as a decision. If you already use another completion assistant, compare the two before keeping both enabled. More suggestions can make the editor feel busier rather than faster.
13. Peacock for separating workspaces
Peacock changes the color of a VS Code workspace. That sounds cosmetic until you have several repositories open and nearly run a command in the wrong terminal.
Assign a different color to projects that are open at the same time. The color becomes a quick visual warning about which folder you are editing.
14. Project Manager for switching repositories
Project Manager saves workspace entries so you can move between repositories without searching through folders each time.
It is a good fit when your day involves several codebases. Give entries names you will recognize later, and remove old projects so the list does not become another place to search.
15. TODO Highlight for unfinished work
TODO Highlight makes markers such as TODO and FIXME visible in the editor and lets you move between them.
Use it as a reminder system, not as a substitute for tracking work. A TODO that has no owner or issue link can sit in a file for years. When a marker represents real work, give it enough context that someone can act on it.
16. Import Cost for dependency awareness
Import Cost displays the size associated with an imported package in JavaScript and TypeScript projects.
The number is a prompt to investigate, not an automatic reason to remove a dependency. Check how the package is bundled and whether the import is on a user-facing path before making a change.
17. Settings Sync for a consistent setup
Settings Sync keeps extensions, themes, and editor settings available across machines through a GitHub account.
Sync is convenient, but do not treat a personal settings bundle as a project requirement. Keep team rules in the repository, and check what is being synchronized before including tokens or machine-specific paths.
18. Code Spell Checker for names and comments
Code Spell Checker catches likely spelling mistakes in identifiers, comments, and documentation.
It is especially helpful when a misspelled variable name has already spread across several files. Add project-specific words to its dictionary rather than ignoring every warning.
19. Code Time for activity patterns
Code Time records coding activity and presents trends or goals. Some people like seeing how their working sessions change over time; others find the numbers distracting.
My caveat is that time in the editor is not the same thing as useful work. Use these metrics as a personal signal if they help you notice a habit, but do not turn them into a scoreboard for yourself or a team.
A smaller starting set
You do not need all 19 extensions on day one. For a new web project, I would start with Prettier, ESLint, Live Server, and REST Client. Add Docker when the project uses containers, GitLens when repository history becomes important, and a testing extension when you have a repeatable test workflow to support.
Also, watch the editor after installing anything new. If startup gets slow or suggestions become noisy, disable extensions one at a time and keep the ones that solve a real problem. The best setup is the one you can explain, maintain, and still enjoy using.
Common setup questions
Open the Extensions view in VS Code, search for an extension, and select Install. Most of the extensions in this list have a free path, but check the extension's own listing for current licensing and optional paid features.
Keep extensions updated when the changes fit your project, and disable ones you no longer use. If an AI extension suggests code, review it for correctness, security, and fit with your repository before committing it.
FAQs
1. How do I install VS Code extensions?
Open the Extensions view in VS Code, search for your desired extension, and click "Install."
2. Are these extensions free?
Most are free, though some, like extension, have premium tiers for advanced features.
3. Can I use these extensions on other editors?
Many are available on other editors, but VS Code integrations provide the best experience.
4. Will too many extensions slow down VS Code?
Yes, disable unused extensions and monitor performance to keep VS Code running smoothly.
5. How do I keep my extensions updated?
Enable auto-update in VS Code settings or manually update via the Extensions view.
6. Which extensions are best for beginners?
Start with Prettier, ESLint, Live Server, and Keploy they’re easy to use and boost productivity immediately.
7. Can I use AI extensions safely in professional projects?
Yes, AI suggestions should be reviewed, but extensions like IntelliCode can greatly speed up coding tasks.