Is my TOML data uploaded to a server?

No. The conversion runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.

How are TOML dates handled?

TOML date and date-time values are serialized as ISO 8601 strings in the YAML output.

Is this tool free to use?

Yes, the converter is completely free, with no account, no ads and no usage limits.

100% local — your data never leaves your browser

TOML to YAML Converter — Free Online Tool

Convert TOML to YAML instantly in your browser. Free, private and offline-friendly: your data never leaves your device.

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Indentation

Swap: YAML → TOML

TOML input

YAML output

Why convert TOML to YAML?

Some tools expect YAML configuration while your source of truth is TOML. Paste your TOML above and get equivalent YAML in milliseconds, without installing anything.

How it works

The converter parses your TOML locally, including tables, arrays of tables and dates, then serializes the result as YAML. TOML dates are written as ISO 8601 strings, so the output stays unambiguous.

Frequently asked questions

Is my TOML data uploaded to a server?: No. The conversion runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.
How are TOML dates handled?: TOML date and date-time values are serialized as ISO 8601 strings in the YAML output.
Is this tool free to use?: Yes, the converter is completely free, with no account, no ads and no usage limits.