LibraTool logoLibraTool
🔄
💻

Quickly Inspect CSV as JSON

See CSV rows as structured JSON objects while developing.

ログイン不要ファイルはプライベートのまま

Drop a CSV file (or paste below)

CSV, TSV, TXT ファイルサイズ制限なし

ファイルを参照
JSON
—
Delimiter

💡 A proper RFC 4180 parser — handles quoted fields, commas and line breaks inside quotes, and escaped quotes. With "first row is a header" on, you get an array of objects; off, an array of arrays. Everything runs in your browser.

developers tips

💻

Objects keyed by header are easier to reason about than raw CSV rows when writing code.

👀

Toggle the header option to compare object vs array output.

📋

Copy a small sample as a JSON fixture for tests.

🔒

No upload — safe for real data.

使い方

1
ファイルを選択
Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.
2
処理
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
ダウンロード
Get your result instantly. Nothing is stored after you leave the page — complete privacy.

なぜ私たちのツール？

✓完全に無料 — 隠れたコストは永遠にありません
✓アカウント、メール、ログイン不要
✓ファイルがデバイスを離れることはありません
✓ファイルサイズの制限は一切ありません
✓出力に透かしなし

Also check out…

🔌

Convert CSV to JSON for an API

Turn a spreadsheet export into JSON your code or A

📑

Convert Messy CSV with Quotes and Commas

Parse CSV that has commas, quotes, or line breaks

↹

Convert TSV (Tab-Separated) to JSON

Parse tab-separated data copied from a spreadsheet

📥

Prepare CSV Data for Import

Convert a CSV into JSON to seed a database or load

よくある質問

Back to CSV to JSON