What does this tool do?
Paste JSON below to convert it into TOML. 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 your json into the left-hand box.
- Click Convert to TOML.
- Copy the toml output from the right-hand box.
Frequently asked questions
How are nested JSON objects represented?
Each nested object becomes its own [section] table, with dotted paths for deeper nesting, e.g. [database.credentials].
Are arrays supported?
Arrays of simple values (strings, numbers, booleans) are written as inline TOML arrays; arrays of objects aren't supported since TOML's array-of-tables syntax is out of scope for this tool.
Is this a full TOML implementation?
It covers the common subset used in everyday config files — key-values, nested sections, and simple arrays — not the entire TOML spec.