TOML Validator
Validate and format TOML configuration files. Check syntax, detect errors with line numbers, and format your TOML documents.
Paste your TOML to validate
Check syntax and format TOML configuration files
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TOML Validation: Syntax Rules, Common Errors, and Best Practices
Learn TOML syntax for configuration files, common validation errors, and how it compares to YAML and JSON.
What Is TOML?
TOML (Tom's Obvious, Minimal Language) is a configuration file format designed to be easy to read and write. Created by Tom Preston-Werner (co-founder of GitHub), TOML maps clearly to a hash table and is intended to be unambiguous — every TOML document has exactly one valid interpretation.
6 min readRead full guide