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TOML Validator
Validate and inspect TOML configuration files
TOML Input
24 lines
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JSON Output
Validate TOML to see JSON output
TOML Quick Reference
Key-Value Pairs:
key = "value"
number = 42
boolean = trueArrays:
numbers = [1, 2, 3]
strings = ["a", "b"]Tables (Objects):
[section]
key = "value"Array of Tables:
[[items]]
name = "first"
[[items]]
name = "second"Nested Tables:
[parent.child]
key = "value"Dates:
date = 1979-05-27
datetime = 1979-05-27T07:32:00ZAbout TOML Validator
What is TOML Validator?
Validate TOML configuration files with clear error messages and line numbers. Convert to JSON to inspect the parsed structure. Works with Cargo.toml, pyproject.toml, and any TOML file.
Features & Benefits
- Validate TOML syntax with error line numbers
- Convert TOML to JSON for inspection
- Works with Cargo.toml, pyproject.toml, and more
- Syntax-highlighted editor view
- Copy or download converted output
- Supports all TOML v1.0 features
Frequently Asked Questions
- What is TOML?
- Tom's Obvious, Minimal Language — a configuration file format used by Rust (Cargo.toml), Python (pyproject.toml), and other tools.
- What TOML version is supported?
- TOML v1.0 specification, including datetime types, inline tables, and array of tables.
- Can I convert TOML to JSON?
- Yes. The tool parses TOML and displays the equivalent JSON structure for inspection.
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