TOML ↔ JSON Converter

Convert TOML config to JSON and back - handles tables and array-of-tables

🔒 100% ブラウザ内🆓 ずっと無料⚡ サインアップ不要
注意: 下記のツールインターフェースは現時点で英語のみに対応しています。UI の翻訳は順次進めています。 このツールを英語で見る →

Handles common TOML v1.0 features: tables, arrays of tables ([[section]]), inline tables, strings, numbers, booleans, dates. Exotic edge cases (multi-line arrays split across lines with mixed comments) may not round-trip perfectly.

使い方

  1. 1
    Paste TOML or JSON

    Drop either format - Cargo.toml, pyproject.toml, wrangler.toml, or any config file.

  2. 2
    Pick a direction

    TOML → JSON or JSON → TOML. The parser handles tables, [[array-of-tables]], and inline tables.

  3. 3
    Copy the output

    One click sends the converted config to your clipboard.

TOML ↔ JSON Converter について

Free online TOML ↔ JSON converter. Paste TOML (Cargo.toml, pyproject.toml, wrangler.toml, config.toml) to get pretty JSON, or JSON to get clean TOML. Handles tables, array-of-tables, inline tables, dates, and typed literals. Runs entirely in your browser. 712 Tools の TOML ↔ JSON Converter はモダンな JavaScript API を使って完全にブラウザ内で動作します - サーバーがあなたのデータを見ることは一切ありません。つまり、即時の結果、完全なプライバシー、アップロード制限なしです。

デバッグ、簡単な確認、あるいは本番のインシデント対応まで - このツールは何度でも無料で使えます。ウォーターマークなし、サインアップなし、ツール内広告なし。

よくある質問

Which TOML version?

TOML v1.0. Common features are supported: tables, array-of-tables, inline tables, strings, numbers, booleans, dates.

Does it preserve comments?

No - TOML comments are stripped on parse, same as YAML → JSON. That's a spec limitation, not a tool one.

Why do I care about TOML?

It's the config format for Rust (Cargo.toml), Python packaging (pyproject.toml), Cloudflare Workers (wrangler.toml), and many other modern tools.

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