Convert TOML to JSON

How to use Convert TOML to JSON

1. 1. Paste your TOML. Paste the TOML file you want converted, such as a Cargo.toml, pyproject.toml, or any config using TOML's bracketed section syntax.
2. 2. Pick the output indent. Choose 2 spaces, 4 spaces or tabs for the Indent setting to control how the resulting JSON is formatted, since TOML's own layout does not carry over directly.
3. 3. Copy the JSON output. Copy the converted JSON and use it in a JavaScript build script, a JSON Schema validator, or anywhere your tooling reads JSON rather than TOML directly.

When to use Convert TOML to JSON

Convert TOML to JSON turns a TOML config file, the format used by Cargo, Poetry and several static site generators, into standard JSON that JavaScript tools and JSON-based validators can consume without a dedicated TOML parser.

• Reading a Cargo.toml from a Node-based build script. A build script written in JavaScript needs to read values out of a Rust project's Cargo.toml, and converting it to JSON first avoids adding a TOML parsing dependency.
• Validating a pyproject.toml against a JSON Schema. You want to run a Python project's pyproject.toml through a JSON Schema validator to catch configuration mistakes, which requires the file in JSON form.
• Extracting values from a static site generator's config. You need specific settings out of a Hugo or similar TOML config file for use in a separate JavaScript-based deployment script.
• Comparing TOML config against a JSON-based equivalent. You are deciding whether to migrate a project's config format and want to see the same TOML settings expressed as JSON side by side.

Examples

title = "demo"

[db]
host = "localhost"
port = 5432

{
  "title": "demo",
  "db": {
    "host": "localhost",
    "port": 5432
  }
}

About the Convert TOML to JSON tool

Frequently asked questions