Remove Empty Lines
Delete all blank lines from your text.
How to Use Remove Empty Lines
- 1Paste your text with empty lines
- 2Blank lines are removed instantly
- 3Copy or download the clean result
About Remove Empty Lines
Remove Empty Lines deletes all blank lines — lines that contain only whitespace characters or nothing at all — from your text. This is useful when cleaning pasted content from PDFs or Word documents that introduces unwanted blank lines between paragraphs, or when processing line-by-line data where empty lines cause parsing issues.
All non-blank lines are preserved exactly as they are, with no changes to their content, order, or spacing. The tool detects both fully empty lines and lines that contain only spaces or tabs, removing both types.
Processing happens instantly in your browser with no server involved. This tool is essential for cleaning log files, processing CSV data, formatting code output, and removing visual clutter from imported content before use.
Key Features of Remove Empty Lines
- Removes all blank lines including whitespace-only lines
- Preserves all non-blank lines exactly as they are
- Maintains the original order and content of non-empty lines
- Instant real-time processing as you paste or type
- One-click copy button for the cleaned output
- Download result as a plain .txt file
- No character length limit — handles large log files or documents
- Runs entirely in-browser with no data transmission
Examples
Remove blank lines from a log file
Strip empty lines between log entries to make a log file more compact.
Input
INFO: Server started INFO: Listening on port 3000 ERROR: Connection timeout
Output
INFO: Server started INFO: Listening on port 3000 ERROR: Connection timeout
Clean whitespace-only lines from a data export
Remove lines that appear blank but contain spaces or tabs from an exported CSV.
Input
Alice,alice@example.com Bob,bob@example.com Carol,carol@example.com
Output
Alice,alice@example.com Bob,bob@example.com Carol,carol@example.com
Common Use Cases
- Cleaning log files by removing blank lines between log entries
- Stripping empty rows from CSV or TSV data exports before processing
- Removing blank lines introduced by PDF or Word document copy-paste
- Compacting code output or terminal output with excessive blank lines
- Preparing line-by-line text for processing scripts that skip blank input
- Reducing file size of large text files with many unnecessary blank lines
Troubleshooting
Expecting intentional paragraph spacing to be preserved
Solution
This tool removes ALL blank lines including intentional paragraph breaks. If you want to keep one blank line between paragraphs, manually re-add them after processing or use a more targeted find-replace approach.
Lines with only spaces not being removed
Solution
Whitespace-only lines (containing only spaces or tabs) are treated as empty and will be removed. If such lines remain after processing, they may contain non-breaking spaces (U+00A0) which look invisible but are not regular whitespace.
Wanting to remove only consecutive empty lines, not all of them
Solution
This tool removes every blank line, not just runs of multiple blank lines. If you want to reduce multiple blank lines to one (rather than removing all), use the Find & Replace tool with a regex like \n{3,} replaced with \n\n.
Frequently Asked Questions
What exactly counts as an empty line?
Any line that contains no characters, or only whitespace characters (spaces, tabs), is considered empty and will be removed. Lines with at least one non-whitespace character are kept.
Does it remove paragraph spacing?
Yes. Blank lines used as paragraph separators are removed. If your text uses blank lines to visually separate paragraphs, they will all be removed. You can re-add paragraph breaks manually after cleaning.
Can it reduce multiple blank lines to one instead of removing all?
No — this tool removes all blank lines. To reduce consecutive blank lines to a single blank line, use the Find & Replace tool with the regex pattern \n{3,} replaced by \n\n.
Is there a text length limit?
No. Processing runs locally in your browser, so there is no server-imposed limit. Files with hundreds of thousands of lines are handled without performance issues.
Does it change the content or order of non-blank lines?
No. Non-blank lines are preserved exactly as they are — same content, same order, same internal spacing. Only the blank lines between them are removed.
What about lines with only tabs?
Lines containing only tab characters are treated as blank and will be removed, just like lines with only spaces. The tool considers any line with exclusively whitespace characters to be empty.
Is my text stored or sent anywhere?
No. All processing runs in client-side JavaScript. Your text never leaves your browser and is not uploaded, stored, or transmitted to any server.
Will this work on Windows-style line endings (CRLF)?
Yes. The tool handles both Unix (LF) and Windows (CRLF) line endings. Blank lines in either format are detected and removed correctly.