TOML Validator
// Validate TOML syntax
#About TOML Validator
Free online TOML validator. Check your TOML configuration files for syntax errors including duplicate tables, unquoted strings, and unbalanced brackets. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
#FAQ
How do I validate TOML? ▾
Paste your TOML content into the input field. The validator checks for syntax errors including duplicate table definitions, unquoted string values, unbalanced brackets and braces, and invalid key-value syntax.
What TOML features are validated? ▾
The validator checks tables, array of tables, key-value pairs with typed values (strings, numbers, booleans, dates), inline tables, multiline strings, and arrays. It enforces that strings must be quoted and values must be valid TOML types.
</> Embed this tool ▾
Copy this code to embed the tool on your website. Adjust the height to fit your layout.
<iframe src="https://www.browserutils.dev/embed/toml-validator" width="100%" height="500" frameborder="0" title="TOML Validator"></iframe>