developer-tools
TOML Formatter
Format and validate TOML snippets online for config files, project metadata, and tool settings with browser-local processing.
Tool workspace
The interactive tool requires JavaScript.
Instructions
2. Click "Format TOML" to normalize spacing, or "Validate TOML" to check common table, quote, array, and key-value boundaries.
3. Review the result against the target tool schema before copying it into a project.
Paste TOML to normalize key-value spacing, table headers, arrays, inline tables, and comments before copying a config snippet. The formatter runs in your browser and uses conservative TOML 1.0-style checks without validating application schemas.
TOML Formatter cleans common TOML layout issues and reports obvious syntax boundaries such as unclosed quotes, arrays, tables, or missing key-value separators. It is useful for reviewing readable config snippets, but it does not prove that Cargo, Python, Hugo, Taplo, or any other tool will accept every schema-specific field.
What the TOML Formatter checks
The formatter performs conservative TOML 1.0-style checks for table headers, key-value separators, quoted strings, arrays, inline tables, and comments. It normalizes common spacing without changing values intentionally.
What it does not validate
The tool does not know whether a Cargo.toml, pyproject.toml, Hugo config, Taplo config, or application-specific file uses the right fields, versions, dependencies, or permissions. Use the target toolchain for schema and runtime validation.
Browser-local handling
Formatting and validation run in the browser. No backend service, account, database, worker, or translation service is used. Avoid pasting production tokens, private registry credentials, or confidential infrastructure data into any untrusted page.