TOML Validator
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Paste TOML here…

Validate TOML configuration files locally in your browser. Catch syntax errors before saving, converting, or comparing.

Loading editor…

Paste TOML here…

Validate TOML configuration files locally in your browser. Catch syntax errors before saving, converting, or comparing.

TOML Validator

Validate TOML configuration files locally in your browser. Catch syntax errors before saving, converting, or comparing.

TOML Validator Use Cases

  • Checking pyproject.toml before running build tools
  • Finding syntax errors in application configs
  • Verifying TOML copied from package documentation
  • Confirming configuration changes before diffing

TOML Validator FAQ

What TOML issues does the validator catch?

It catches parsing errors such as malformed strings, invalid table syntax, broken arrays, and other TOML syntax issues reported by the parser.

Does the TOML validator support schemas?

No. It only validates TOML syntax. It is meant to confirm that a document can be cleanly parsed before you format, convert, or compare it.