Convert TOML to JSON Instantly
Need to use a TOML config in a JSON-based system? Our free TOML to JSON converter parses your TOML data and generates valid JSON. It's fast, accurate, and handles nested tables and arrays perfectly.
TOML to JSON Converter
Convert TOML configuration to JSON format
How the TOML to JSON Converter Works
This tool transforms TOML configuration files into JSON format. It parses the TOML structure and outputs equivalent JSON with all data types preserved. Choose between pretty-printed (formatted) or compact (single-line) JSON output.
Conversion Process
- Paste your TOML content into the input area
- Choose pretty-print or compact JSON output
- Click "Convert to JSON" to process
- The TOML is parsed and validated
- Tables become JSON objects
- Array-of-tables become JSON arrays
- All data types are preserved
- Copy or download the JSON output
Specific Use Cases
API Response Preparation
Convert TOML config to JSON for API responses. JSON is the standard format for web APIs.
JavaScript Integration
JavaScript natively handles JSON. Convert TOML configs for use in Node.js or browser applications.
Data Interchange
Share configuration data with systems that expect JSON. JSON is universally supported across platforms.
Database Storage
Store TOML configs in JSON-compatible databases. MongoDB and document stores work natively with JSON.
Testing and Mocking
Convert TOML fixtures to JSON for test data. Many testing frameworks expect JSON test data.
What to Know Before Using This Tool
Understanding TOML to JSON conversion:
- TOML tables become JSON objects
- Array-of-tables become JSON arrays []
- All TOML types map to JSON equivalents
- Pretty-print adds indentation for readability
- Compact format minimizes file size
- Comments are not preserved (JSON doesn't support them)
Frequently Asked Questions
What's the difference between pretty and compact?
Pretty-print adds indentation and newlines for readability. Compact removes all whitespace for minimum file size.
Are TOML comments preserved?
No, JSON doesn't support comments. Comments are lost in conversion. Keep the original TOML for documentation.
How are dates handled?
TOML dates become ISO 8601 strings in JSON. They can be parsed back to dates in your application.
Can I convert back to TOML?
Yes, use the JSON to TOML converter. The conversion is lossless for standard data types.
What about invalid TOML?
The tool validates TOML before conversion. Invalid TOML will show an error message with details.
Why convert TOML to JSON?
JSON is more widely supported in web technologies. Convert TOML for JavaScript, APIs, or JSON-only systems.
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