Change CSV Separator
「Change CSV Separator」はテキストと文書に使えるブラウザツールです。入力内容と結果は通常この端末内で処理され、登録は必要ありません。
CSV or plain text up to 10 MB. Processing happens locally in your browser; the file is not uploaded.
Quoted fields are respected, including separators and line breaks inside double quotes. The first row is treated like any other row.
使い方
使い方
- Choose a CSV file up to 10 MB or paste CSV text.
- Select the current separator and the separator you want to use.
- Convert, review the preview, and download the new CSV file.
Quoted CSV fields are preserved
The converter recognizes double-quoted fields, escaped double quotes, and line breaks inside quoted fields. Every output field is quoted when needed for the selected separator.
Clear format boundaries
This tool changes the field separator only. It does not infer a different character encoding, repair malformed CSV, change line endings in pasted content beyond the generated output, or transform formulas and data types.
Local and private by design
File reading, parsing, conversion, preview, and download happen in your browser. The CSV is not sent to a server. Input is limited to 10 MB and the preview is limited to 100,000 characters for responsiveness.
よくある質問
あわせて知りたいこと
Which separators are supported?
Comma, semicolon, tab, pipe, and any single custom character are supported.
Does it handle commas inside a quoted field?
Yes. Double-quoted fields can contain the current separator, line breaks, and escaped double quotes.
Will it preserve my original encoding?
The browser decodes the selected file using its text decoding behavior and downloads UTF-8 text. This tool does not detect or convert legacy encodings.
Is my CSV uploaded?
No. The conversion runs locally in your browser.