JSON Formatter
Free online JSON formatter and beautifier. Paste your JSON to instantly format, pretty print or minify it. Clean readable output in one click. No login needed.
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JSON Formatter — Beautify and Pretty Print JSON Online
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How to Use the JSON Formatter
Paste your raw JSON text into the input field, select your desired indentation (2 spaces, 4 spaces, or tabs), and click Format. Minify mode will strip all optional whitespace to yield a compact single-line string.
JSON Formatter vs JSON Minifier — Two Modes Explained
Developers use formatting modes depending on whether readability or data efficiency is the priority.
Pretty Print Mode — Readable Indented Output
Adds line breaks and custom spacing after brackets, keys, and values to make the hierarchy clear and legible for developers.
Minify Mode — Compact Single Line Output
Removes all unnecessary whitespace, comments, and line breaks to minimize payload size for network transfer.
Why Format JSON?
Formatting JSON makes structural verification and debugging significantly faster.
Readability for Debugging
Beautified layouts make it easy to spot nested arrays, property relationships, and incorrect values.
Code Review and Documentation
Properly formatted JSON blocks fit cleanly in documentation, code commits, and pull requests.
API Response Inspection
Makes reading responses from curl or terminal outputs readable and structured.
JSON Formatting Rules and Standards
Standard formatting promotes collaboration and prevents format conflicts.
Indentation — 2 Spaces vs 4 Spaces vs Tabs
2-space indentation is standard for web apps to save horizontal screen space, while 4-space indent is popular for backend readability.
Key Ordering Options
Sorting keys alphabetically can help compare two JSON objects during diff tracking.
JSON Formatter vs JSON Validator — Use Both Together
Our tool validates the input syntax before formatting. If the JSON is invalid, the formatter will report the parser error instead of pretty printing.
How to Format JSON in Popular Code Editors
Learn the shortcuts to keep your projects clean offline.
VS Code JSON Formatting Shortcut
Press Shift + Alt + F (Windows) or Shift + Option + F (macOS) to format the open JSON file instantly.
Sublime Text JSON Plugin
Install packages like 'Pretty JSON' to format and validate directly via the command palette.
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Frequently Asked Questions
How do I format JSON online for free?
Paste your JSON inside our tool, select your indentation preference, and click Format to instantly beautify the payload.
What is the difference between JSON beautify and JSON minify?
Beautifying adds spacing and line breaks for readability; minifying strips all optional whitespace to reduce file and transfer sizes.
What indentation standard should I use for JSON?
2-space or 4-space indentation is standard. 2-space is preferred for large payloads to prevent deep horizontal nesting.
Can I format and validate JSON at the same time?
Yes, our formatter checks the syntax validity of the payload before applying indentation.
How do I pretty print JSON in VS Code?
Open the file, right-click, and select 'Format Document', or use the shortcut keys.