Free JavaScript to JSON Converter

Free
Utility
(4.5)

Convert JavaScript objects to JSON format easily, including handling special values and settings.

JavaScript to JSON Converter

Example Inputs

Quick Reference

Features

  • • Converts JS objects to valid JSON
  • • Handles special values (undefined, NaN)
  • • Supports Date objects
  • • Function conversion options
  • • Circular reference detection

Settings

  • • Customizable indentation
  • • Optional key sorting
  • • Special value handling
  • • Date format options
  • • Circular reference handling

Tips

  • • Start with 'const' or direct object
  • • Use double quotes for strings
  • • Avoid complex functions
  • • Check for circular references
  • • Validate output with JSON.parse()

Common Issues

  • • Undefined values not allowed in JSON
  • • Functions need special handling
  • • Date objects become strings
  • • NaN and Infinity become null
  • • Circular references cause errors
●Core capabilities

Easily Convert JavaScript to JSON

Convert JS objects to JSON format with customizable settings. Supports dates, functions, and circular references.

JavaScript to JSON Conversion

Quickly convert JavaScript objects to JSON with customizable options.

Handle Special Cases

Manage dates, functions, and circular references seamlessly.

Configurable Settings

Customize output with sorting, indentation, and value filtering.

Copy and Download

Easily copy or download the generated JSON output.

4+
Features
99.9%
Reliability
24/7
Available
Free
Always
●Step-by-step flow

How to Use

Simple 4-step process

1

Step 1

Enter a JavaScript object or code snippet in the input area.

2

Step 2

Configure settings such as indentation, key sorting, and special value handling.

3

Step 3

Instantly view the converted JSON output with real-time updates.

4

Step 4

Copy the generated JSON output for further use or download it as a file.

Quick Start
Begin in seconds
Easy Process
No learning curve
Instant Results
Get results immediately
●Frequently Asked Questions

Frequently Asked Questions

Everything you need to know about this tool and how it works.

See Full FAQ

Yes, circular references are detected and represented appropriately.

Dates are converted to ISO 8601 string format.

Yes, you can select the indentation style for the JSON output.

Functions can be included as strings based on your settings.

By default, undefined values are removed, but this can be adjusted in the settings.

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