Visual Studio Code is popular because it starts light and grows with you. The editor itself is simple, and extensions add the language support, formatting, debugging and AI help that turn it into a full development environment. The marketplace holds tens of thousands of extensions, which is exactly the problem: most lists are padded, outdated or recommend tools that overlap with features VS Code now includes.
This guide covers the top VS Code extensions that still earn their place in 2026, grouped by what they help you do. It also covers how to install them safely and keep your editor fast.
Quick List: Top VS Code Extensions
| # | Extension | Best for |
|---|---|---|
| 1 | GitHub Copilot | AI completion, chat and agent workflows |
| 2 | Prettier | Automatic code formatting |
| 3 | ESLint | JavaScript and TypeScript linting |
| 4 | GitLens | Git history and blame |
| 5 | Error Lens | Inline errors and warnings |
| 6 | Live Server | Local preview with auto-reload |
| 7 | Thunder Client | Testing APIs inside VS Code |
| 8 | Docker | Building and managing containers |
| 9 | Dev Containers | Reproducible development environments |
| 10 | Remote – SSH | Coding on remote machines |
| 11 | Live Share | Real-time pair programming |
| 12 | Python and Pylance | Python language support |
| 13 | Tailwind CSS IntelliSense | Tailwind class autocomplete |
| 14 | Path Intellisense | File path autocomplete |
| 15 | Code Spell Checker | Catching typos in code and comments |
| 16 | Todo Tree | Tracking TODO and FIXME comments |
| 17 | Markdown All in One | Writing documentation |
| 18 | SonarLint | Finding bugs and security issues as you type |
| 19 | Material Icon Theme | Readable file icons |
| 20 | Kubernetes | Working with clusters and manifests |
AI Coding Extensions
1. GitHub Copilot
Copilot is no longer only inline autocomplete. It now covers chat, multi-file edits and agent-style sessions that can plan and carry out tasks in your project. It works with most languages and is useful for boilerplate, tests, refactoring and explaining unfamiliar code.
Best for: nearly every developer, with the caveat that you must review what it generates.
If you want to compare options before committing, read our guide to the best GitHub Copilot alternatives.
Tip: Treat AI suggestions as drafts. Run tests, read the diff and watch for subtle bugs or insecure patterns.
Code Quality Extensions
2. Prettier
Prettier formats your code automatically, usually on save. It ends style debates in code review because the formatter decides. It supports JavaScript, TypeScript, JSON, CSS, HTML, Markdown and more.
Setup tip: add a shared Prettier config to your repository so everyone on the team gets identical formatting.
3. ESLint
ESLint finds problems in JavaScript and TypeScript code, such as unused variables, suspicious patterns and rule violations. Used together with Prettier, ESLint handles code quality while Prettier handles appearance.
Best for: JavaScript and TypeScript projects, especially teams.
4. Error Lens
Instead of making you open the Problems panel, Error Lens shows errors and warnings right on the line where they occur. It is simple and effective, and it pairs well with ESLint.
5. SonarLint
SonarLint highlights bugs, code smells and some security issues as you type, before you commit. It is a good way to catch problems early without waiting for a CI run.
6. Code Spell Checker
It flags typos in variable names, comments and strings. That sounds minor until you spot “recieve” in a public API name.
Git and Collaboration Extensions
7. GitLens
GitLens adds blame annotations, line history, branch comparison and repository insights directly in the editor. It answers the question “who changed this and why?” without leaving your file. The core features are free, and some advanced features are paid.
8. Live Share
Live Share lets you and a teammate edit and debug the same codebase in real time, with shared terminals and servers. It is useful for pair programming, mentoring and quick debugging sessions with remote colleagues.
Web Development Extensions
9. Live Server
Live Server starts a local development server and reloads your browser every time you save. It is ideal for HTML, CSS and JavaScript work. For frameworks that already have a dev server, such as React, Vite or Next.js, you typically do not need it.
10. Tailwind CSS IntelliSense
If you use Tailwind, this extension gives you class name autocomplete, hover previews of the underlying CSS and linting for conflicting classes.
11. Path Intellisense
It autocompletes file paths in imports and strings, which saves time and prevents broken-path errors.
12. Thunder Client
Thunder Client is a lightweight REST client inside VS Code. You can send requests, inspect responses, save collections and manage environments without switching to a separate app. It is a convenient alternative to a standalone API client for quick testing.
DevOps and Environment Extensions
13. Docker
The Docker extension lets you build images, run containers, view logs and manage registries from the sidebar. It also helps you write Dockerfiles with syntax support and suggestions.
14. Dev Containers
Dev Containers let you run your whole development environment inside a container. New teammates open the repository, and the environment, tools and dependencies are ready. This removes the “works on my machine” problem.
15. Remote – SSH
This extension lets you open folders on a remote server or VM as if they were local, using your own editor setup. It is great for cloud development, powerful remote machines and working on Linux servers from a lightweight laptop.
16. Kubernetes
If you work with clusters, this extension helps you browse resources, view logs and edit manifests with validation. It is most useful for DevOps and platform work.
Language Extensions
17. Python and Pylance
For Python, the official Python extension and Pylance provide IntelliSense, linting, debugging, testing and notebook support. Add a virtual environment per project and select the interpreter in VS Code.
Other languages have their own official or well-supported extensions, including Go, Rust (rust-analyzer), Java and C#. If you are still choosing a language, see our guide to the best programming languages to learn.
Productivity and Comfort Extensions
18. Todo Tree
Todo Tree scans your project for TODO, FIXME and similar comments and lists them in a sidebar so they do not get lost.
19. Markdown All in One
It helps with writing README files and documentation, with shortcuts, a table of contents generator, list editing and preview support.
20. Material Icon Theme
Distinct file and folder icons make it faster to scan a large project tree. It is a small quality-of-life upgrade.
Extensions You No Longer Need
Some older recommendations are now outdated:
- Bracket pair colorizers: VS Code includes bracket pair colorization natively. Enable it in settings instead of installing an extension.
- Basic auto-close and rename tag tools: many are built in or covered by language extensions.
- Duplicate formatters: running two formatters on the same file leads to conflicts. Pick one per language.
Before installing something, check whether VS Code already does it.
How to Install VS Code Extensions
- Open VS Code.
- Press Ctrl+Shift+X (Windows and Linux) or Cmd+Shift+X (Mac) to open the Extensions view.
- Search for the extension name.
- Check the publisher, install count and recent updates.
- Click Install.
You can also install from the command line with code --install-extension publisher.extension-name.
Extension Security: What to Check Before Installing
Extensions run with significant access to your files and sometimes your network, so they are a real attack surface. Attackers have published fake or malicious extensions that imitate popular ones. Before installing:
- Verify the publisher. Look for verified publishers and check that the name matches the real project.
- Check install counts, ratings and update history. A brand-new extension with few installs deserves extra caution.
- Read the permissions and repository. Open source extensions are easier to inspect.
- Watch for look-alike names. Typosquatted extensions copy popular names with small changes.
- Limit what you install. Fewer extensions mean a smaller attack surface.
- Review workspace trust prompts. Do not trust unknown folders without checking them first.
Supply chain attacks on developer tools are part of a growing threat landscape. Our guide to AI-powered cyber attacks explains how attackers are automating these tactics, and our zero trust security article covers the least-privilege thinking that applies to developer machines too.
Keep VS Code Fast: Avoid Extension Bloat
More extensions are not better. Each one can add startup time, memory use and conflicts.
- Use profiles. VS Code profiles let you keep separate extension sets for web work, Python and writing.
- Disable per workspace. Turn off extensions you only need in certain projects.
- Check what is slow. Use the Running Extensions view to see activation time, and run the startup performance command if the editor feels slow.
- Audit regularly. Remove anything you have not used in the last month.
Recommended Starter Setups
Web developer (JavaScript and TypeScript): GitHub Copilot, Prettier, ESLint, Error Lens, GitLens, Live Server, Tailwind CSS IntelliSense, Thunder Client.
Python and data developer: Python, Pylance, GitHub Copilot, GitLens, Error Lens, Dev Containers, Markdown All in One.
DevOps and backend: Docker, Kubernetes, Remote – SSH, Dev Containers, GitLens, Thunder Client, SonarLint.
Student or beginner: Prettier, Code Spell Checker, Error Lens, Live Server, Todo Tree, Material Icon Theme. Add AI tools gradually once you understand the fundamentals.
FAQs
What are the best VS Code extensions for beginners?
Start with Prettier, Error Lens, Live Server, Code Spell Checker and a language extension for what you are learning. Add more only when you feel a specific need.
How many VS Code extensions should I install?
There is no fixed number. Install only what solves a real problem. Many productive developers run between 10 and 20.
Are VS Code extensions safe?
Most are, but not all. Check the publisher, install count and update history, and avoid look-alike names.
Do VS Code extensions slow down the editor?
They can. Check the Running Extensions view, use profiles and disable extensions you do not need per workspace.
Is GitHub Copilot worth it?
Many developers find it saves time on boilerplate, tests and refactoring, but you must review the output. If cost or privacy is a concern, compare alternatives before deciding.
What is the difference between Prettier and ESLint?
Prettier formats code style (spacing, quotes, line breaks). ESLint finds code quality problems and rule violations. Most JavaScript projects use both.
Can I sync my extensions across computers?
Yes. VS Code’s Settings Sync can carry your extensions, settings and keybindings across devices when you sign in.
Are extensions free?
Most are free. Some, like GitLens advanced features or certain AI tools, offer paid tiers.
Conclusion
The best VS Code setup is the smallest one that covers your workflow. Start with a formatter, a linter, Git tooling and a language extension, then add AI help, container tools and collaboration features as your projects demand them. Keep security in mind, prune regularly and let VS Code’s built-in features do the work where they ca