JSON → TOML Converter
JSON Input
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TOML Output
Why use a private JSON to TOML converter?
TOML is the preferred config format for Rust (Cargo.toml), Python (pyproject.toml), and Hugo. This converter translates JSON to TOML entirely in your browser — no data is uploaded or transmitted.
How it works
The converter parses the JSON input and maps each type to its TOML equivalent. The JSON root must be an object (not an array) since TOML requires a root table. Nested objects become TOML tables, and arrays of objects become TOML arrays of tables.
Common use cases
- Converting package.json configuration sections to Cargo.toml format
- Translating JSON config files to TOML for Hugo or other TOML-based tools
- Converting JSON API responses to TOML for config file generation
Frequently asked questions
- Is my data safe to convert here?
- Yes. All conversion happens in your browser. No data is transmitted to any server.
- Why must the JSON root be an object?
- TOML requires a root table (object). JSON arrays at the root level have no direct TOML equivalent, so the input must be a JSON object.