File & Data Conversion Tools
JSON to TOML Converter
Convert JSON to TOML - objects become tables, arrays of objects become arrays of tables, with correct TOML value formatting.
Paste JSON below - this tool converts it into TOML syntax, with nested objects becoming tables and correctly-formatted values.
For the reverse direction, see the TOML to JSON Converter.
How the Conversion Works
Top-level primitive keys become plain key = value lines; nested objects become [table] sections; arrays containing only objects become [[array of tables]]; other arrays become inline TOML arrays.
How to Use It
- Paste a JSON object.
- Click Convert.
- Copy or download the resulting TOML.
Limitations
JSON's null has no direct TOML equivalent (TOML has no null type) - keys with a null value are omitted from the TOML output rather than producing invalid syntax, and this is noted so you're aware of the difference.
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