JSON Beautifier
Format and prettify JSON with customizable indentation. Make your JSON readable and well-structured.
Line 1: Unexpected end of JSON input
About JSON Beautifier
JSON Beautifier (also known as JSON Formatter or JSON Pretty Print) is a tool that formats minified or poorly formatted JSON into a human-readable format with proper indentation and line breaks.
Features
- Custom Indentation: Choose between 2 spaces, 4 spaces, or tabs
- Sort Keys: Alphabetically sort object keys for consistency
- Real-time Validation: Instantly see if your JSON is valid
- Syntax Highlighting: Color-coded JSON for easy reading
- Copy & Download: Easily copy or download the formatted result
When to Use JSON Beautifier
- Reading API responses that come as minified JSON
- Debugging JSON configuration files
- Preparing JSON for documentation
- Making JSON logs more readable
- Standardizing JSON formatting across a team
JSON Formatting Best Practices
- Use 2-space indentation for compact but readable JSON
- Sort keys alphabetically for easier comparison
- Validate JSON before sharing or committing to version control
- Use minified JSON for production to reduce file size, beautified for development
When 2-Space Indentation Isn't Enough
Every team has opinions about formatting. Tabs vs spaces. 2-space vs 4-space. Sorted keys vs original order. The debates are endless, but your JSON still needs to look right.
JSONLint Pretty Print gives you fine-grained control over output formatting, including options for handling special characters and Unicode that can trip up basic formatters.
Copy JSON, hit a shortcut, get formatted output.JSONLint Pro for Mac lives in your menu bar and formats JSON in milliseconds — no browser tabs, no paste-and-wait, no uploading data to the cloud.