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JSON Formatter

Format and prettify JSON with custom indentation

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Tool

Format minified JSON into readable, properly indented output. Supports custom indentation levels.

Input JSON

Output JSON

Features

✓ Format JSON with proper indentation

✓ Validate JSON syntax

✓ Minify JSON to reduce size

✓ Copy formatted output

Use Cases

• Debug API responses

• Format configuration files

• Reduce JSON file size

• Validate data structures

About this tool

Type

formatter

Input

text

Output

text

Features

✓ Free to use
✓ No registration required
✓ No file size limits
✓ Fast processing
✓ Secure & private

What is JSON Formatter?

JSON Formatter takes raw or minified JSON and transforms it into clean, indented, human-readable output. Properly formatted JSON is much easier to read, debug, and edit — making this tool essential for developers working with API responses, configuration files, and data objects.

How to Use JSON Formatter

1Paste your raw or minified JSON into the input field.
2Choose your indentation level (2 or 4 spaces).
3Click "Format JSON" — or formatting happens automatically on paste.
4Review the structured output and copy it or download as a .json file.

Common Use Cases

→Making API response payloads readable for debugging.
→Formatting JSON configuration files before committing to version control.
→Cleaning up JSON data copied from logs or other tools.
→Preparing JSON data for documentation or code reviews.
→Checking JSON structure when working with complex nested objects.

Frequently Asked Questions

Does formatting change the JSON data?

No. Formatting only adds whitespace for readability. The data values, keys, and structure are completely unchanged.

Will it detect JSON errors?

Yes. If your JSON contains syntax errors (missing brackets, trailing commas), the formatter will highlight them.

Can I format JSON with comments?

Standard JSON does not support comments. Files with comments (JSONC) will cause a parse error. Remove comments before formatting.