Remove Empty Lines Tool
Clean up your text by removing blank lines instantly. Our tool eliminates empty lines, whitespace-only lines, and excessive line breaks, producing compact, readable output perfect for code, data files, and documents.
Empty Line Removal Options
| Mode | Removes | Keeps | Remove All EmptyAll blank linesSingle-spaced text Remove Whitespace-OnlyLines with only spaces/tabsTruly empty lines Collapse MultipleMultiple blanks → singleParagraph breaks | Trim + Remove | Leading/trailing whitespace + blanks | Clean compact text |
Empty Line Remover Implementation
``javascript
function removeEmptyLines(text, options = {}) {
const {
removeWhitespaceOnly = true,
collapseMultiple = false,
preserveParagraphs = false
} = options;
let lines = text.split('\n');
// Filter based on options
if (removeWhitespaceOnly) {
lines = lines.filter(line => line.trim().length > 0);
} else {
lines = lines.filter(line => line.length > 0);
}
let result = lines.join('\n');
// Collapse multiple blank lines to one (if any remain)
if (collapseMultiple) {
result = result.replace(/\n{3,}/g, '\n\n');
}
return {
originalLines: text.split('\n').length,
resultLines: result.split('\n').length,
linesRemoved: text.split('\n').length - result.split('\n').length,
result
};
}
``
When to Remove Empty Lines
Code formatting: Remove unnecessary blank lines before minification or to meet style guide requirements. Data processing: Clean CSV/TSV exports that contain blank rows. Document cleanup: Remove extra spacing from copied text. Log analysis: Compact log files by removing empty entries.
Preserving Paragraph Structure
Sometimes you want to remove excessive blank lines while keeping paragraph breaks. Use "collapse multiple" mode to convert three or more consecutive blank lines into a single blank line, maintaining readable separation without unnecessary whitespace.