TOML Validator

Check TOML syntax against the TOML 1.0 spec and see where it breaks.

What this does

Checks TOML against the 1.0 specification and reports whether it is valid, how many top-level keys it has, and how many tables.

Typical mistakes it finds

A key defined twice, or a table redefined after it was implied by a dotted key.
Unquoted string values: name = app instead of name = "app".
Mixed-up table and array-of-tables headers, [servers] against [[servers]].
Invalid numbers, such as a leading zero or a doubled underscore, and impossible dates.

The error includes the line, the column, and a short excerpt of the source.

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