JSON Formatter
Prettify or minify JSON data instantly. All processing happens locally in your browser.
100% Private & Secure
Your data never leaves your browser
How to Format JSON Online?
Paste Your JSON
Copy and paste your JSON data into the input field. The tool accepts any valid JSON structure.
Choose Format
Click 'Prettify' for readable indented output, or 'Minify' to compress by removing whitespace.
Copy Result
Copy the formatted JSON with one click. Use prettified JSON for debugging, minified for APIs.
Why Use BrowserKits JSON Formatter?
100% Client-Side Processing
Your JSON data NEVER leaves your browser. Safe for API keys, credentials, and sensitive configuration files.
Instant Validation
Immediately detect syntax errors with clear error messages. No waiting for server responses.
Reduce Payload Size
Use Minify to compress JSON for APIs, reducing bandwidth usage and improving performance.
Completely Free
No limits, no registration, no hidden fees. Format unlimited JSON data.
Use Cases
API Debugging
Format API responses for easier debugging and troubleshooting. Quickly spot issues in complex nested data.
Config Validation
Validate and prettify configuration files to ensure proper JSON syntax before deployment.
Data Inspection
Inspect and analyze data structures from databases, APIs, or log files in a readable format.
How It Works: Client-Side Processing
Your privacy is our priority. Here's why our approach is different:
JavaScript Parser
Uses native browser JSON.parse() and JSON.stringify() for reliable, standards-compliant parsing and formatting.
Syntax Highlighting
Color-coded output makes it easy to distinguish between strings, numbers, booleans, and structural elements.
Error Detection
Instantly identifies syntax errors with clear messages pointing to the exact location of issues.
Frequently Asked Questions
Is my JSON data sent to any server?
No, absolutely not. All JSON processing happens entirely in your browser using JavaScript. Your data never leaves your device - you can verify this by disconnecting from the internet.
What's the difference between Prettify and Minify?
Prettify adds indentation and line breaks for human readability. Minify removes all unnecessary whitespace, making JSON compact for efficient storage or API transmission.
Can I format large JSON files?
Yes, the tool handles large JSON files limited only by your browser's memory. For files over 100MB, performance may vary depending on your device.
How to Format JSON Online?
Paste Your JSON
Copy and paste your JSON data into the input field. The tool accepts any valid JSON structure.
Choose Format
Click 'Prettify' for readable indented output, or 'Minify' to compress by removing whitespace.
Copy Result
Copy the formatted JSON with one click. Use prettified JSON for debugging, minified for APIs.
Why Use BrowserKits JSON Formatter?
100% Client-Side Processing
Your JSON data NEVER leaves your browser. Safe for API keys, credentials, and sensitive configuration files.
Instant Validation
Immediately detect syntax errors with clear error messages. No waiting for server responses.
Reduce Payload Size
Use Minify to compress JSON for APIs, reducing bandwidth usage and improving performance.
Completely Free
No limits, no registration, no hidden fees. Format unlimited JSON data.
Use Cases
API Debugging
Format API responses for easier debugging and troubleshooting. Quickly spot issues in complex nested data.
Config Validation
Validate and prettify configuration files to ensure proper JSON syntax before deployment.
Data Inspection
Inspect and analyze data structures from databases, APIs, or log files in a readable format.
How It Works: Client-Side Processing
Your privacy is our priority. Here's why our approach is different:
JavaScript Parser
Uses native browser JSON.parse() and JSON.stringify() for reliable, standards-compliant parsing and formatting.
Syntax Highlighting
Color-coded output makes it easy to distinguish between strings, numbers, booleans, and structural elements.
Error Detection
Instantly identifies syntax errors with clear messages pointing to the exact location of issues.
Frequently Asked Questions
Is my JSON data sent to any server?
No, absolutely not. All JSON processing happens entirely in your browser using JavaScript. Your data never leaves your device - you can verify this by disconnecting from the internet.
What's the difference between Prettify and Minify?
Prettify adds indentation and line breaks for human readability. Minify removes all unnecessary whitespace, making JSON compact for efficient storage or API transmission.
Can I format large JSON files?
Yes, the tool handles large JSON files limited only by your browser's memory. For files over 100MB, performance may vary depending on your device.