How to use the Remove Empty Lines
Remove or collapse empty lines in three steps:
1
Paste your text
Paste any text with extra or unwanted blank lines into the input area.
2
Choose mode and options
Select 'Remove All' to strip every empty line, or 'Collapse to One' to replace runs of blank lines with a single blank line. Toggle 'Treat whitespace-only lines as empty' to catch lines that look empty but contain spaces or tabs.
3
Copy or download
Click 'Remove Empty Lines' and copy or download the cleaned output.
When to use this tool
Use to clean up pasted, exported, or generated text with unwanted blank lines:
- →Cleaning up text pasted from PDFs that insert extra blank lines between every paragraph
- →Removing the excessive blank lines that appear when copying content from Word documents into plain text
- →Collapsing multiple consecutive blank lines in Markdown files to enforce consistent paragraph spacing
- →Removing empty lines from code exported from an editor before pasting into a ticket or email
- →Compressing a text or log file by removing all blank lines to reduce file size
- →Preparing line-by-line data for processing in scripts where empty lines cause index errors or parsing failures
Frequently asked questions
Q:What is the difference between 'Remove All' and 'Collapse to One' mode?
'Remove All' deletes every empty or blank line in the document, producing a solid block of text with no spacing between paragraphs. 'Collapse to One' replaces any consecutive run of two or more blank lines with exactly one blank line, preserving single paragraph breaks while eliminating excessive spacing. Use 'Collapse to One' when you want to clean up spacing without losing paragraph structure.
Q:What does 'Treat whitespace-only lines as empty' mean?
Some lines appear visually blank but actually contain spaces, tabs, or other whitespace characters. Without this toggle, those lines are not considered empty and are kept. With the toggle enabled (the default), any line whose content — after trimming — is an empty string is treated as an empty line and removed or collapsed depending on your selected mode.
Q:Will 'Collapse to One' mode remove leading and trailing blank lines?
Yes — the Collapse mode also trims any leading blank lines at the very start of the document and any trailing blank lines at the very end, in addition to collapsing internal runs. This produces a cleanly bounded document that starts and ends with content rather than blank lines.
Q:Is this useful for cleaning up Markdown files?
Yes — Markdown parsers typically treat a single blank line as a paragraph separator and ignore additional blank lines. Using 'Collapse to One' mode on a Markdown file normalises the spacing so every paragraph is separated by exactly one blank line, which is consistent with most Markdown style guides and linting tools like markdownlint.
Q:Can I use this to clean up exported data files?
Yes — data exports from databases, spreadsheets, or APIs sometimes include trailing blank lines or separator lines that cause parse errors in downstream scripts. Running the export through 'Remove All' mode strips all empty lines so every remaining line contains data, which is the expected input format for most CSV parsers and line-by-line processing scripts.
Q:Does the tool count how many lines were removed?
Yes — after conversion, the output panel footer shows the count of empty lines that were removed, and the stats pills at the bottom of the page show the before and after line counts alongside the exact number removed. This lets you verify the operation matched your expectations before copying the result.