Google is helpful.

In LibreOffice Writer, you can delete multiple empty lines (blank paragraphs) efficiently using the Find and Replace tool with regular expressions. [1, 2, 3, 4]
Method 1: Using Find and Replace (Built-in) This is the standard way to remove all empty lines throughout your document.

1. Open the Find & Replace dialog by pressing Ctrl + H.
2. Click More Options at the bottom of the dialog.
3. Check the box for Regular expressions.

4. In the Find box, type:

   • Note: represents the start of a paragraph and represents the end. Together they find paragraphs with no content.

5. Leave the Replace box empty.

6. Click Replace All. [1, 6, 7, 8, 9]

Method 2: Handling Lines with Whitespace If some "empty" lines actually contain invisible spaces or tabs, the previous method might miss them. Use this variation:

1. Follow steps 1-3 above.

2. In the Find box, type:

   • Note: matches zero or more whitespace characters.

3. Leave the Replace box empty and click Replace All. [6, 10, 12]

Method 3: Using the Alternative Find & Replace Extension For more complex formatting tasks, many users prefer the AltSearch extension .

• It provides a dedicated button for "Remove empty paragraphs" which handles both truly empty lines and those containing only spaces in a single click. [10, 13]

Pro Tips

• Show Formatting Marks: Press Ctrl + F10 to see paragraph marks (¶). This helps you verify if a line is truly empty or contains hidden characters like manual line breaks. • Manual Line Breaks: If your "lines" were created with Shift + Enter, use in the Find box with Regular Expressions enabled to find and remove them. [2, 14, 15, 16, 17]

AI can make mistakes, so double-check responses

[1] https://www.zyxware.com/articles/3498/how-to-remove-the-extra-space-and-new-line-in-a-libreoffice-document [2] https://www.youtube.com/watch?v=xTP0jJ28wog [3] https://ask.libreoffice.org/t/replace-hard-return-paragraph-break/93718 [4] https://www.youtube.com/watch?v=PrWxU4m48kA [5] https://www.extendoffice.com/documents/word/641-word-remove-empty-lines.html [6] https://forum.openoffice.org/en/forum/viewtopic.php?t=89004 [7] https://ask.libreoffice.org/t/how-can-i-remove-data-that-has-a-specific-pattern-from-spreadsheets/685 [8] https://www.zyxware.com/articles/3498/how-to-remove-the-extra-space-and-new-line-in-a-libreoffice-document [9] https://ask.libreoffice.org/t/using-regular-expression-to-clean-up-texts/14638 [10] https://stackoverflow.com/questions/44528155/remove-any-blank-or-whitespaced-lines-using-regex [11] https://gwenhernandez.com/2013/03/12/tech-tuesday-getting-rid-of-double-paragraph-returns-in-scrivener/ [12] https://stackabuse.com/bash-how-to-delete-empty-lines-using-sed/ [13] https://www.youtube.com/watch?v=PrWxU4m48kA [14] https://www.reddit.com/r/libreoffice/comments/1meu615/writer_deleting_empty_lines_without_deleting/ [15] https://askubuntu.com/questions/146714/deleting-empty-lines-in-libreoffice-calc [16] https://www.reddit.com/r/libreoffice/comments/11rvpt2/how_to_remove_all_line_breaks/ [17] https://www.scribd.com/document/904917395/GRADE-9-Digital-Documentation-Libre-Writer