JSON to TOML Converter
Convert JSON data to TOML format instantly. Perfect for Cargo.toml, pyproject.toml, and configuration files.
JSON
TOML
Converter
Rust
Python
About JSON to TOML Converter
Our JSON to TOML converter instantly transforms JSON data into clean, well-formatted TOML. This tool is essential for Rust developers, Python package maintainers, and anyone working with configuration files that prefer the human-readable TOML format.
Key Features:
- Instant conversion from JSON to TOML format
- Proper TOML formatting with tables and array-of-tables
- Support for nested structures and complex data types
- Download converted TOML files directly
- Copy to clipboard functionality
- Sample JSON for quick testing
Common Use Cases:
- Creating Cargo.toml files for Rust projects
- Generating pyproject.toml for Python packages
- Converting API response data to configuration format
- Transforming JSON config files to TOML
- Building configuration files from structured JSON data
All conversion happens entirely in your browser - no data is sent to any server. Your JSON content remains completely private and secure. Need to work with other formats? Try our JSON to CSV or YAML to JSON converters, or explore more tools at converter tools.
Frequently Asked Questions (FAQ)
What is TOML and why convert JSON to TOML?
TOML (Tom's Obvious, Minimal Language) is a human-readable configuration file format commonly used in Rust (Cargo.toml), Python (pyproject.toml), and other projects. Converting JSON to TOML makes configuration files more readable and easier to maintain.
When should I use TOML instead of JSON?
TOML is ideal for configuration files because it's more human-readable with support for comments, multi-line strings, and clearer syntax. It's the standard for Rust projects (Cargo.toml), Python packaging (pyproject.toml), and many build tools. For API data, use our JSON to CSV converter or YAML converter.
Is my JSON data secure during conversion?
Yes, absolutely. All JSON to TOML conversion happens entirely in your browser using JavaScript. No data is sent to any server, ensuring your configuration data, API keys, and sensitive information remain completely private and secure.
What JSON structures are supported?
Our converter supports all standard JSON features including nested objects, arrays, strings, numbers, booleans, and null values. Complex JSON structures are converted to TOML tables and array-of-tables format following TOML v1.0 specification.
Can I use this for Cargo.toml or pyproject.toml files?
Yes! This tool is perfect for generating Cargo.toml files for Rust projects, pyproject.toml for Python projects, or any other TOML configuration files. Just paste your JSON data and get properly formatted TOML output ready to use.
What are the main differences between TOML and JSON?
TOML is more human-readable with support for comments, unquoted keys, and better multi-line string support. JSON is more compact and better for data interchange. TOML uses [table] sections for nested data, while JSON uses nested objects with curly braces.