JSON to TOML Converter
Convert your JSON data to TOML format using this free online converter with various advanced options.
Paste your JSON data and instantly get clean TOML output. Supports nested objects, arrays, strings, numbers, booleans, and dates. Includes key sorting for organized configuration files.
JSON to TOML Converter
Convert your JSON data to TOML format using this free online converter with various advanced options.
About this tool
Paste your JSON data and instantly get clean TOML output. Supports nested objects, arrays, strings, numbers, booleans, and dates. Includes key sorting for organized configuration files.
Enter your JSON data to convert it to TOML format.
Output appears here...
Enter your JSON data to convert it to TOML format.
FAQ
Common questions and answers about this topic.
What is the difference between JSON and TOML?
JSON uses curly braces and strict quoting rules, while TOML uses a flat key-value syntax with sections (tables). TOML supports comments, native date/time types, and is designed to be more human-readable for configuration files.
What are common use cases for TOML?
TOML is widely used for configuration files including Rust's Cargo.toml, Python's pyproject.toml, Hugo site config, and many CLI tools. Its readable syntax makes it ideal for settings that humans frequently edit.
Can I sort the keys alphabetically?
Yes, the sort keys dropdown allows you to alphabetically order all TOML table keys (A to Z) or retain the original sequence from your JSON. Sorting applies recursively across all nested TOML tables and sub-tables.
Is my data sent to any server?
No, the JSON-to-TOML conversion is performed entirely in your browser using JavaScript. Your JSON data stays on your device and is never uploaded to any server.