Remove Empty Lines
Delete every blank or whitespace-only line to compact your text — or collapse runs of blank lines down to one. Runs in your browser; nothing is uploaded.
About this tool
Remove Empty Lines deletes the blank lines from a block of text so the remaining lines sit together with no gaps. Paste your text, pick how blank lines should be handled, and copy the compacted result.
- What to do with blank lines
- Remove all empty lines — delete every blank line, leaving no gaps between content (the default).
- Collapse consecutive blanks to one — reduce any run of two or more blank lines down to a single blank line, so paragraphs stay separated without large gaps.
- Also remove whitespace-only lines — treat a line that contains only spaces or tabs (or any other whitespace) as empty, not just a line that is literally empty. On by default.
- Trim leading/trailing whitespace on kept lines — also strip spaces and tabs from the start and end of the lines that remain. Off by default so indentation is preserved unless you ask for it.
Everything runs locally in your browser via WebAssembly — your text is never uploaded.
Worked example
Input:
First line
Second line
Third line
With Remove all empty lines and Also remove whitespace-only lines on (the line with three spaces counts as empty), the output is:
First line
Second line
Third line
Switch the mode to Collapse consecutive blanks to one and the same input keeps one blank line between each entry instead of removing them all.
Handy for
- Cleaning up text pasted from a PDF or email that arrived double-spaced.
- Compacting a list where blank lines crept in between items.
- Tidying code or config after deletions left empty gaps behind.
Limits & edge cases
- Line endings are normalized to
\n(LF): Windows\r\nand old-Mac\rinputs come out with plain LF line breaks. - A trailing newline at the very end counts as a final empty line and is removed, so the result never ends with a dangling blank line in remove mode.
- "Whitespace" follows Unicode rules, so non-breaking spaces (U+00A0) and the ideographic space (U+3000) also make a line count as empty when whitespace-only is on.
- This tool only removes blank lines. To collapse runs of spaces inside a line, or to strip every space, use a whitespace-cleaning tool instead.
FAQ
What counts as an "empty" line?
By default, both a truly empty line and a line that contains only spaces or tabs count as empty and are removed. If you turn off Also remove whitespace-only lines, then only lines with zero characters are removed and a line of spaces is kept as-is.
What is the difference between "remove all" and "collapse"?
Remove all deletes every blank line, so the remaining content is packed together with no gaps. Collapse keeps a single blank line wherever there were one or more in a row — useful when you want to keep paragraph breaks but get rid of triple- and quadruple-spaced gaps.
Will it change the non-blank lines or their order?
No. The order of your content is preserved exactly. Non-blank lines are left untouched unless you tick Trim leading/trailing whitespace on kept lines, which strips spaces and tabs from the start and end of each remaining line.
Is my text uploaded anywhere?
No. The tool runs entirely in your browser as WebAssembly — the text you paste never leaves your device.
Developer & Automation Access
Run it from the terminal
Same engine as this page, headless — via the gizza CLI:
gizza tool remove-empty-lines "Paste text with blank lines to remove…"New to the CLI? Get gizza →
Open it by URL
Pre-fill and auto-run this tool with query parameters — the names match the API/CLI:
https://gizza.ai/tools/remove-empty-lines/?text=Paste%20text%20with%20blank%20lines%20to%20remove%E2%80%A6&mode=remove&whitespace_only=true&trim_lines=trueMachine-readable descriptor: tool.json — title + parameters JSON Schema for agents.