JSON to TOML Converter
Convert between JSON and TOML.
🔒 Client · OfflineThe data stays in your browser
Every conversion runs on the page. Nothing is uploaded.
About JSON and TOML
TOML is a clear format for configuration files. It has typed values: strings, integers, floats, booleans, dates, and arrays.
Use this tool to convert data between JSON and TOML. The data stays in your browser.
TOML does not have a null value. A null in JSON becomes an empty string in TOML. Nested arrays of mixed types are not valid in TOML, so the tool rejects them with an error.
JSON, YAML, TOML, JSON5, and XML all convert in your browser. The XML parser is the one that the browser ships, so no library is loaded and nothing is uploaded.