CSV → カンマ区切りテキストコンバーター
CSVをクリーンなカンマ区切りテキストとしてエクスポート。フィールドのクォートを細かく制御し、WindowsまたはUnixの改行を切り替え、結果をプレビューしてダウンロードまたはコピー — すべてブラウザ内で。
データのライブテーブルプレビューがここに表示されます。
Output is comma-delimited; use the quoting menu to keep, add or drop quotes.
Convert CSV into comma-delimited text
CSV is already comma-separated, but “convert CSV to comma delimited text file” usually means you want control over the details: which fields are quoted, how line breaks are written, and a predictable text file you can hand to another system.
Paste or upload the CSV and this tool re-emits it as comma-delimited text with the exact quoting rule you choose. The live preview confirms the columns, and you can copy the text or download it as a file.
Need a different separator? See tab, pipe or the general CSV to delimited text tool.
How to use it
貼り付けまたはアップロード
Add your text or drop a file — it is read locally in your browser, never uploaded.
Preview & adjust
Check the live table and the row / column counts, then tweak the delimiter or options if a column looks off.
Copy or download
Grab the result with Copy or Download. You can reopen recent conversions from this device too.
Input and output example
CSV exported as comma-delimited text, with safe quoting where needed.
id,name,note
1,Ada,"hi, there"id,name,note
1,Ada,"hi, there"Controlling commas and quotes
壊れやすいファイルときれいなファイルの違いはクォーティングにあります。
Quote only when needed
The default wraps a field in quotes only if it contains a comma, a quote or a line break. This produces the most compact, standard comma-delimited text and re-imports correctly everywhere.
Quote every field
Some strict importers expect every value quoted. Choose すべて引用符 and each field is wrapped, which removes any ambiguity about where columns begin and end.
No quotes at all
If you have guaranteed that no value contains a comma, 引用符なし gives the simplest output. Use it carefully — a stray comma would shift columns.
Line endings
Pick CRLF for Windows targets or LF for Unix and most programming tools, so the receiving system reads your line breaks correctly.
Comma-delimited text in practice
Comma-delimited text is the default interchange format precisely because almost every program understands it, from spreadsheets to programming languages to database loaders. The trade-off is that commas are also extremely common inside real data — addresses, descriptions, amounts — which is why quoting exists. When you export here, think about the receiver: a tolerant importer is happy with quote-when-needed output, while a strict, hand-written parser may be safer with every field quoted. If you are sending the file to a colleague who will open it in Excel, keep quoting minimal and add the UTF-8 BOM. If you are feeding an automated pipeline, quote-all removes any guesswork about column boundaries. Either way, comma-delimited text stays the most portable choice, and you can re-import the result with the text-to-CSV tool to confirm it round-trips cleanly before you hand it off. A quick round-trip check like that is the cheapest insurance against a malformed file reaching a production system or a client’s inbox.
CSV to Comma Delimited Text Converter — FAQ
Isn’t CSV already comma-delimited?
Yes, but this gives you control over quoting and line endings and a clean text download for other systems.
Can I quote every field?
Yes, choose Quote all for strict importers.
How are commas inside values handled?
Such fields are quoted automatically unless you turn quoting off.
Is it processed locally?
Yes, entirely in your browser.