VS Code's built-in JSON support is decent. These 7 extensions make it exceptional.
The extensions
1. Prettier
Enforces consistent formatting across your whole team. Essential if multiple devs touch the same JSON configs.
2. JSON Tools
Adds sorting, minification, and format conversion (JSON → XML, YAML, CSV). Right-click menu integration.
3. Error Lens
Surfaces JSON errors inline, right on the line where they happen — not just in the Problems panel.
4. JSON Schema Store
Autocomplete based on 600+ public schemas — package.json, tsconfig.json, AWS CloudFormation, GitHub Actions, and more.
5. Paste JSON as Code
Paste any JSON and instantly generate TypeScript interfaces, Python dataclasses, Go structs, and more.
6. Rainbow Brackets
Color-codes matching bracket pairs. Lifesafe for deeply nested JSON structures.
7. JSON Crack (via browser)
Visualizes JSON as an interactive node graph. Great for understanding large or complex structures.
Install any of these
Ctrl + Shift + X → search the extension name → Install
Built-in VS Code JSON tips
- Format document:
Alt + Shift + F - Fold all sections:
Ctrl + K, Ctrl + 0 - Enable schema: add
$schemakey to your JSON file
Full review and setup guide: 7 Best JSON Editor Extensions for VS Code
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