What does this tool do?
Paste TOML below to convert it into JSON. Everything runs locally using JavaScript in your browser — nothing you paste or upload is ever sent to a server.
How to use this tool
- Paste your toml input into the left-hand box.
- Click Convert to JSON.
- Copy the json output from the right-hand box.
Frequently asked questions
What TOML features are supported?
Key-value pairs, [section] and [nested.section] tables, strings, numbers, booleans, and inline arrays of simple values.
Are arrays of tables ([[table]]) supported?
No — this converter covers everyday config-style TOML (as used by Cargo.toml or pyproject.toml) but doesn't parse the array-of-tables syntax or multi-line strings.
Where is TOML commonly used?
TOML is the config format for tools like Rust's Cargo, Python's pyproject.toml, and Hugo — converting to JSON makes that config easy to consume programmatically.