JSON to TOML Converter
Convert JSON data to TOML configuration format
All processing happens in your browser. No data is sent to any server.
Paste a JSON object above to convert it to TOML format. Handles nested objects as [sections] and arrays of objects as [[array]] tables.
Why This Tool
When you have data in JSON and need it in TOML format for tools like Cargo, Hugo, or pyproject configurations, this converter handles the translation. It maps JSON objects to TOML tables and arrays correctly, producing clean, idiomatic TOML output.
How It Works
Paste your JSON into the input area. The tool parses it and generates TOML output with proper table headers, inline tables for simple objects, and arrays of tables for array data. Copy the result or download it as a .toml file.