免費線上行排序與重複資料刪除工具
貼上一個凌亂的清單（每行一個項目），然後按字母順序對其進行排序，刪除重複的條目，刪除空白行，並一次性刪除空格。
對於清理 CSV 匯出、日誌檔案、標籤清單以及任何順序和唯一性很重要的文字非常有用。所有處理都在您的瀏覽器本地進行。
Frequently Asked Questions
How does line deduplication work?
Deduplication removes duplicate lines while keeping one copy of each unique line. By default, the first occurrence is kept and later duplicates are removed. Case sensitivity can affect matching - Email and email may count as different lines depending on settings.
Can I sort lines in reverse order?
Yes. Dokall supports ascending (A-Z) and descending (Z-A) alphabetical sorting. Numeric lines sort lexicographically by default - 10 comes before 2 in plain alphabetical sort. For numeric sorting, ensure consistent formatting.
What does trim whitespace do?
Trim removes leading and trailing spaces and tabs from each line. This is useful when cleaning data copied from PDFs, web pages, or spreadsheets where invisible whitespace causes duplicate detection to fail.
Can I remove empty lines?
Yes. Enable the remove empty lines option to strip blank lines from your list. This is helpful after deduplication or when cleaning up exports that contain trailing newlines.
Is there a line limit?
No enforced limit. Processing runs in your browser. Lists with tens of thousands of lines work on modern devices. For extremely large datasets (millions of lines), command-line tools like sort -u are faster.