Best VS Code Extensions for Productivity 2026
Discover the best VS Code extensions for productivity in 2026. Compare GitLens, Error Lens, Thunder Client, and more to supercharge your development workflow.
At MG Software, GitLens and Error Lens run as standard in every VS Code installation. GitHub Copilot is optional but recommended for faster development. Thunder Client replaces Postman for quick API tests from within the editor.
VS Code is the most popular code editor in the world, and the right extensions make the difference between a good and an exceptional development experience. This selection contains the most impactful productivity extensions for daily use.
How do we evaluate these tools?
- Impact on daily development productivity
- Stability and performance impact on VS Code
- Quality of maintenance and update frequency
- Ease of use and configuration options
1. GitLens
Adds powerful Git capabilities to VS Code including blame annotations, per-line commit history, and visual file history navigation.
Pros
- +Inline blame annotations on every code line
- +Rich commit history and file comparison
- +Interactive rebase editor in VS Code
Cons
- -Can slow VS Code with very large repos
- -Overwhelming number of features for beginners
- -Some features require paid version
2. Error Lens
Displays errors and warnings inline in the editor, making issues immediately visible without hovering over squiggly lines.
Pros
- +Errors visible right next to the code line
- +Configurable colors and diagnostic levels
- +Zero configuration needed — works instantly
Cons
- -Can become visually noisy with many warnings
- -Not all diagnostics are equally relevant
- -Limited customization of message display
3. Thunder Client
Lightweight REST API client built into VS Code for testing APIs without leaving the editor.
Pros
- +API testing without opening Postman
- +Collections and environment variables
- +Minimal impact on VS Code performance
Cons
- -Less powerful than Postman for complex flows
- -Advanced features require paid version
- -No team sync in free version
4. Peacock
Color-codes VS Code workspaces for easy identification when working with multiple windows or projects simultaneously.
Pros
- +Immediate visual workspace identification
- +Predefined and custom colors
- +Lightweight with no performance impact
Cons
- -Limited to color customization only
- -Not useful for single-window workflows
- -Colors can clash with some themes
5. GitHub Copilot
AI-powered code completion that suggests whole functions and lines based on context and comments. Trained on billions of lines of open-source code.
Pros
- +Intelligent whole-line and function suggestions
- +Chat interface for code explanation and refactoring
- +Support for virtually all programming languages
Cons
- -Monthly subscription cost
- -Suggestions always require human review
- -Privacy considerations for code analysis
Which tool does MG Software recommend?
At MG Software, GitLens and Error Lens run as standard in every VS Code installation. GitHub Copilot is optional but recommended for faster development. Thunder Client replaces Postman for quick API tests from within the editor.
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