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About TOML to JSON Converter – Convert TOML to JSON Online
Parse TOML configuration files from Rust, Python, Go, and Hugo projects and transform them into formatted JSON.
Identify syntax errors with line-and-column reporting and export pretty-printed JSON.
Input is processed locally in your browser and is not sent to Navorika.
How the calculation works
TOML 1.0 Grammar Parsing
The engine parses TOML tables, inline tables, multiline strings, arrays, integers, floats, booleans, and datetime stamps.
JSON Serialization
The parsed dictionary is converted into RFC 8259 JSON with 2-space or 4-space indentation.
How to use this tool
- 1Paste your TOML document or upload a .toml file.
- 2Review the live converted JSON output in the right-hand panel.
- 3Adjust indentation settings (2 or 4 spaces) or sort keys if desired.
- 4Copy the JSON output or download the resulting .json file.
Understanding the result
Standard TOML tables ([table]) map to nested JSON objects.
TOML table arrays ([[array_table]]) map to JSON arrays of objects.
Important limitations
- Comments in the original TOML file are stripped because standard JSON does not support comments.
- Native TOML offset datetime values are serialized as ISO 8601 strings in JSON.
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Frequently asked questions
Does this support Cargo.toml and pyproject.toml files?
Yes. Any standards-compliant TOML 1.0 document can be parsed.
Why are comments missing from the JSON output?
Standard JSON does not support comments. Comments are discarded during the parsing phase.
Is the conversion performed on a server?
No. All processing happens locally in your browser memory.
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