JSON Formatter
Beautify, validate, and minify JSON instantly. Clean messy JSON data, detect syntax errors, and copy or download the formatted result for APIs, configuration files, and developer workflows.
Formatter Controls
Controls are placed above the editors so you get more width and height for large JSON files.
Mode
Indentation applies only in beautify mode.
View options
Status
Valid JSON
Root type
object
Keys / items
5
Output lines
1
Error location
-
JSON Tree View
Expand and collapse nested objects and arrays for easier JSON inspection.
Included features
- Controls moved to the top for larger input and output editors.
- Line numbers in both panes for easier navigation.
- Error line highlighting in the input gutter.
- One-click jump to the detected error line.
- Code-frame style error preview for invalid JSON.
- Tree view with expand and collapse support.
- Upload, beautify, minify, validate, copy, and download support.
What can this JSON formatter do?
This tool helps you format raw JSON into a clean readable structure, validate whether the JSON is correct, and minify it when you need a compact version for transport or storage.
Common use cases
Use it for API responses, configuration files, frontend debugging, backend payload inspection, JSON learning, database exports, and quick cleanup before sharing code snippets with teammates.