What is TOML commonly used for?

TOML (Tom's Obvious Minimal Language) is widely used for project configuration in Rust (Cargo.toml), Python (pyproject.toml), Go (Gopkg.toml), and Hugo static sites.

Can this tool parse arrays of tables in TOML ([[items]])?

Yes! Double-bracket syntax [[table]] is converted into an array of objects in the resulting JSON.

How are TOML comments (#) handled?

Standard hash comments are stripped during parsing so that clean, RFC-compliant JSON is generated.

Does this converter preserve integer numbers?

Yes, TOML integer values remain numerical integers in the converted JSON output.

Are my configuration files or secrets sent to a server?

No. The TOML parser runs 100% client-side in your browser; no data ever leaves your computer.

TOML to JSON Converter

Parse and convert TOML configuration files (Cargo.toml, pyproject.toml) to formatted JSON.

100% free
Private in browser
No signup
No watermarks

TOML to JSON Converter

Convert TOML configuration syntax into formatted JSON online.

TOML Input

JSON Output

{
  "package": {
    "name": "my-awesome-tool",
    "version": "0.1.0",
    "edition": "2021",
    "authors": [
      "TheToolss Team"
    ]
  },
  "dependencies": {
    "serde": "1.0",
    "tokio": "1.28"
  },
  "features": {
    "default": [
      "std"
    ],
    "std": []
  }
}

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About TOML to JSON Converter

Parse and convert TOML configuration files (Cargo.toml, pyproject.toml) to formatted JSON. Use this free client-side tool on TheToolss with zero installation and complete privacy.

How to use TOML to JSON Converter

Paste your TOML file contents into the left text editor.
Choose your desired JSON indentation spacing (2 or 4 spaces).
Review the converted JSON data in the right-hand panel.
Copy the formatted JSON or save it for downstream processing.

Key features

Complete TOML table support including [table] headers and nested tables
Automatic data type conversion for integers, floats, booleans, and datetime strings
Inline table and multiline array parsing
Syntax error detection with clear line and error alerts
100% client-side execution keeping private tokens and credentials secure

Frequently asked questions

What is TOML commonly used for?: TOML (Tom's Obvious Minimal Language) is widely used for project configuration in Rust (Cargo.toml), Python (pyproject.toml), Go (Gopkg.toml), and Hugo static sites.
Can this tool parse arrays of tables in TOML ([[items]])?: Yes! Double-bracket syntax [[table]] is converted into an array of objects in the resulting JSON.
How are TOML comments (#) handled?: Standard hash comments are stripped during parsing so that clean, RFC-compliant JSON is generated.
Does this converter preserve integer numbers?: Yes, TOML integer values remain numerical integers in the converted JSON output.
Are my configuration files or secrets sent to a server?: No. The TOML parser runs 100% client-side in your browser; no data ever leaves your computer.

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