What formats are supported?

TOML, INI, and JSON configuration text can be converted between formats. Samples are provided.

Can I export the output?

Yes. You can copy or download the converted output directly.

TOML and JSON support nested structures. INI uses dotted keys for nesting. Lossy conversion warnings appear when converting between TOML and INI.

Yes. Use the copy button to copy to clipboard, or download button to save the converted output with the appropriate file extension.

Convert TOML, INI, and JSON configuration text between formats. Validate and copy formatted output.

Tip: Runs locally—great for quick config conversions.

Pretty outputLines: 3

Parser options

INI-focused

Array delimiterDuplicate keysDot notation nestingType coercion (numbers/booleans)

Schema validation

Enable

Output

Diff mode

Select TOML, INI, or JSON, paste your config, upload a file, or drop it onto the editor.
Pick the output format (JSON/TOML/INI), then optionally pretty the output.
Large inputs show a warning; errors indicate invalid format (line/column for TOML when available).
Use parser options to control INI arrays, duplicates, dot nesting, and type coercion.
TOML ↔ INI conversions can be lossy due to differing data models.
Optionally enable JSON Schema validation to check keys and types.
Use Ctrl/Cmd+Shift+F in the input editor to format the current input.
Enable diff mode to compare input against the converted output or a custom version.

FAQ & privacy

Does this run locally? Yes. Conversion happens in your browser; config text is not uploaded.

What formats? TOML, INI, and JSON. Output can be JSON, TOML, or INI.

Can I export? Yes. Copy or download the converted output directly.