JSON Beautifier for Config Files
Beautify JSON with customizable indentation (2 spaces, 4 spaces, or tabs). Free online tool.
Quick Answer
Paste JSON and choose your preferred indentation style (2 spaces, 4 spaces, or tabs) to beautify the output.
How to Use the JSON Beautifier for Config Files
- Use the input area to provide your data.
- The tool processes it instantly in your browser.
- Copy or download the result.
Frequently Asked Questions
- Which config files work with this tool?
- Any JSON configuration file: package.json, tsconfig.json, .eslintrc.json, babel.config.json, VS Code settings, AWS CloudFormation templates, and more.
- What is the difference between a JSON formatter and beautifier?
- They are similar, but a beautifier typically offers more indentation options (2-space, 4-space, tab) while a formatter usually applies a single default style. Both produce the same result — readable, properly indented JSON.
- Which indentation should I use?
- 2 spaces is standard in JavaScript/TypeScript ecosystems. 4 spaces is common in Python and Java. Tabs allow each developer to set their preferred visual width. Follow your team's style guide.
About This Tool
Configuration files are at the heart of modern software development — from package.json and tsconfig.json to VS Code settings and cloud infrastructure templates. This JSON Beautifier for Config Files is tailored for processing JSON configuration files with the precision and care they require. Configuration files often contain comments (in formats that support them), version-specific settings, and carefully structured hierarchies that must be preserved during formatting. The tool processes these files while maintaining all data integrity, ensuring that indentation reveals the logical structure of configuration sections, nested settings, and conditional values. Whether you are cleaning up auto-generated configuration, merging settings from multiple sources, or preparing config files for documentation, this tool handles the task reliably.
What is JSON Beautifier?
A JSON beautifier transforms minified or poorly formatted JSON into a clean, readable format with your choice of indentation style. Unlike a basic formatter that uses a single indentation setting, a beautifier offers multiple options: 2-space indentation (popular in JavaScript and web development), 4-space indentation (common in Python and enterprise environments), and tab indentation (preferred by some teams for accessibility and customizable display width). The beautifier preserves all data integrity while making deeply nested JSON structures easy to navigate. This is particularly useful when working with complex API schemas, deeply nested configuration objects, or large datasets where visual hierarchy is essential for understanding the data structure.
How to Use This Tool
- Paste your JSON data.
- Choose your indentation: 2 spaces, 4 spaces, or tabs.
- Click the corresponding Beautify button.
- Copy the beautified output.
Common Use Cases
- Formatting package.json for readability
- Cleaning up tsconfig.json and eslint configs
- Processing VS Code settings.json files
- Normalizing docker compose JSON overrides
Examples
{"config":{"theme":"dark","fontSize":14,"plugins":["eslint","prettier"]}}Explore More Variations
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