ファイルツール
CSVからJSON
CSVをJSONまたはJSON Linesに変換し、区切り文字・型・ヘッダーを検出します。
Your files are processed locally in your browser and are not uploaded.
Your JSON result will appear here.
ほとんどのツールはブラウザ内でローカル処理します。背景除去では選択した画像を設定済みサーバーで処理し、完了後に元画像を削除します。
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使い方
- Drop a CSV or paste its contents.
- Choose a delimiter, header and type-detection options, then review the row and column counts.
- Copy or download JSON, JSON array or JSON Lines.
おすすめの用途
- Moving spreadsheet data into an API
- Inspecting exported reports
- Preparing JSON fixtures
注意点
Malformed rows are reported instead of silently guessed. Very large files may need a smaller selection on low-memory devices.
よくある質問
Is CSV content uploaded?
No. Parsing and JSON generation happen locally; content is not sent to analytics.