TOML Editor

A minimal TOML validator (not a parser-to-object). It scans the pasted TOML line by line, counts sections and key/value pairs, flags section names that contain spaces, flags unclosed string values, and reports any line that is not a comment, section header, [[array of tables]], or key=value. It does not parse TOML into an object or normalize output.

1. Paste your TOML into the input area (placeholder shows [database] / server = ... / port = 5432). 2. Click Validate. 3. A result card appears with a green or red dot, the count of sections and keys, and a list of per-line error messages such as Line 3: Unclosed string value.

Blank lines and lines starting with # are ignored. Lines matching [name] or [[name]] are counted as sections; a [name] with whitespace inside the brackets is flagged as Section name contains spaces. Lines matching `[a-zA-Z_][a-zA-Z0-9_-]* = ...` are counted as keys; if the value starts with a quote but does not end with the same quote it is flagged as Unclosed string value. Anything else is reported as Syntax error. The validator does not check types, dates, arrays, inline tables, or multi-line strings.