Which TOML features are supported?

It supports key = value pairs, basic and literal strings, integers and floats, booleans, dotted keys, [tables], [[arrays of tables]], inline arrays and

How accurate is the parsing?

The parser follows the TOML v1.0.0 syntax for the supported subset, including underscore-separated numbers and quoted keys, and reports an error rather than guessing when it sees an unsupported construct.

Is my TOML sent anywhere?

No. The conversion runs entirely in your browser with JavaScript — your config never leaves your device.

TOML to JSON Converter

Convert TOML config files into structured JSON.

Convert TOML to JSON in your browser

Paste your TOML config and get clean, indented JSON. The parser handles the constructs people actually paste: key-value pairs, [tables], [[arrays of tables]], dotted keys, inline arrays and # comments, following the TOML v1.0.0 syntax.

Unsupported features such as multi-line strings and date types are reported as a clear error rather than silently mis-parsed. Everything runs locally in your browser — your config is never uploaded or stored.