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TOML to JSON

Convert standard TOML tables and scalar data to formatted JSON locally.

TOML → JSON83 characters
Paste configuration text. The live preview stays inert and is limited for responsiveness.
JSON previewReady
{
  "title": "Toolbox",
  "enabled": true,
  "ports": [
    3000,
    3001
  ],
  "server": {
    "host": "localhost"
  }
}
Processed on your device

How it works & useful details

Supported TOML

Imports bare/basic keys, regular [table] headings, quoted strings, booleans, finite safe numbers, date-like values and scalar arrays. Table paths form nested JSON objects.

Inline tables, array tables, multiline strings and dotted assignment keys are rejected rather than approximated. TOML dates remain strings because JSON has no date type.

Private, bounded processing

This workspace parses text only in your browser. It never opens links, requests external entities, runs pasted configuration, or saves your document. Input is limited to 500,000 characters; conversion output is limited to 1,000,000 characters.