Empty Line Remover — Text Cleanup and Code Formatting Guide
Blank line removal is one of the most common text cleaning operations. Copied web content, exported PDFs, emails, and pasted code often contain excessive blank lines that disrupt formatting and readability. This tool provides three cleaning modes: remove all blank lines, collapse consecutive blank lines to one, or strip only leading and trailing blank lines.
Mode behavior:
Default (collapse mode off): removes every blank line from the text
Collapse mode: compresses 2+ consecutive blank lines to a single blank line
Common use cases:
— Clean web-pasted text with excessive spacing
— Strip blank lines from CSV or TSV data before import
— Remove extraneous blank lines from copied email threads
— Normalize spacing in Markdown documents
— Clean up code files after large refactors or deletions
The "treat whitespace-only lines as empty" option catches invisible blank lines — lines that contain only spaces or tabs and appear blank but are technically non-empty. This is especially common in text copied from PDF readers or certain web pages. All processing happens in your browser — no data is sent to a server.
Frequently Asked Questions
A: The tool normalizes line endings on input — both \r\n (Windows) and \n (Unix) are handled correctly. Output is written as \n (Unix style) since that is how browser textarea elements store text. If you need to preserve Windows line endings for a file, paste the output into a text editor and save with CRLF encoding.
A: Yes. PDFs often produce text with blank lines between every line of content when copied, especially multi-column layouts. Removing all blank lines consolidates the text into continuous paragraphs. If the original had paragraph breaks, use collapse mode to preserve one blank line per paragraph.
A: The "Trim leading/trailing blank lines" option removes blank lines at the very beginning and end of the text. In Unix convention, files should end with a single newline — this tool does not automatically add one, but the output will not end with extra blank lines when trimming is enabled.