JSON Formatter
Format, beautify and pretty-print JSON data client-side.
What is the JSON Formatter?
The JSON Formatter pretty-prints and beautifies raw, minified JSON strings. It automatically adds proper indentation and line spacing to display nested data structures cleanly.
How to Use the Tool
- Paste your minified or unformatted JSON text into the input editor.
- Choose your preferred indentation spacing (e.g. 2 spaces, 4 spaces, or tab).
- Optionally check the "Sort Keys Alphabetically" box to recursively sort keys.
- The pretty-printed JSON output is rendered instantly in the result editor.
Common Use Cases
- Debugging REST API payloads and logs.
- Cleaning up configuration files like package.json.
- Preparing structured data for git diff comparisons.
Supported Formats & Options
Supports standard JSON structures, nested arrays, and parent-child object layers. Indentation spacing can be selected dynamically, and alphabetical key sorting is recursively performed on all nested levels.
Related Guides & Tutorials
Learn how to format and pretty-print JSON files correctly. Discover spacing, key sorting, and common formatting mistakes that developers make.
Discover techniques and tools to read, explore, and analyze large JSON files without crashing your browser or text editor.
A developer guide to validating JSON data. Learn about common syntax issues like trailing commas, single quotes, and missing closing brackets.
Understand the purpose of JSON minification. Learn how removing whitespace, line breaks, and comments optimizes network payloads and speed.
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Frequently Asked Questions
Is my JSON data secure?
Yes. All formatting is processed client-side inside your browser. No data is sent to our servers.
Does this sort JSON keys?
Yes, you can enable the "Sort Keys Alphabetically" checkbox to recursively sort the object keys.