JSON to TOML

Convert JSON files to TOML configuration format with ease. Perfect for modernizing config files or working with TOML-based tools.

Privacy & Security

All files are processed locally in your browser. Your data never leaves your device and is not uploaded to any server. We do not store, collect, or have access to your files.

How It Works

  1. 1

    Paste your JSON data or upload a JSON file

  2. 2

    The tool validates JSON syntax and structure

  3. 3

    Content is accurately converted to TOML format

  4. 4

    Download as .toml file or copy the formatted result

Use Cases

  • Convert package.json or config.json to TOML format

  • Migrate API configurations from JSON to TOML

  • Prepare configs for Rust, Python, or Go projects

  • Standardize configuration file formats

  • Convert build tool configs to TOML

Frequently Asked Questions

Why convert JSON to TOML?

TOML is often more readable for configuration files than JSON. It supports comments, has cleaner syntax for nested data, and is preferred by modern tools like Rust's Cargo.

Are all JSON structures supported?

Yes, all standard JSON structures (objects, arrays, strings, numbers, booleans, null) convert perfectly to their TOML equivalents.

What about JSON with dates or special types?

Standard JSON only has strings, numbers, booleans, objects, and arrays. Date strings are preserved as strings in TOML. You can convert them to TOML datetime format if needed.

Is conversion loss-less?

Yes, all data is preserved during conversion. TOML supports all JSON data types, so no information is lost in the conversion process.

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