JSON Prettifier
Format JSON with proper indentation for readability
Input JSON
Output
What is JSON Prettifier?
Prettified JSON uses consistent indentation and line breaks to make data structure visually clear. When debugging API responses or reading configuration files, properly formatted JSON is essential for understanding nested relationships.
Our prettifier transforms single-line minified JSON into cleanly indented, readable format. Choose between 2-space, 4-space, or tab indentation to match your coding standards.
Why Use This Tool?
Humans can't efficiently read minified JSON. When API responses arrive compressed, or when you're debugging complex nested structures, prettification transforms unreadable blobs into navigable data.
Consistent formatting also matters for version control. When your entire team uses the same JSON format, git diffs show meaningful changes only—not formatting noise that obscures actual modifications.
How It Works
Prettification follows standard conventions:
1. Parse the JSON to understand structure 2. Re-serialize with chosen indentation (2/4 spaces or tabs) 3. Place each key-value pair on its own line 4. Indent nested objects and arrays appropriately 5. Align closing brackets with opening elements
The result follows consistent rules that make structure immediately apparent.
Common Use Cases
- Debugging minified API responses
- Preparing JSON for documentation
- Code review and collaboration
- Configuration file editing
Pro Tip
Use 2-space indent for compact files that still read well. 4-space is better for deeply nested structures where visual distinction matters more.
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