What counts as an empty line?
An empty line is a line with no visible characters. When trimming is enabled, spaces and tabs are treated as empty too.
Example
First line Second line Third line
First line Second line Third line
FAQ
Can I keep paragraph spacing?
Yes. Use Collapse blanks to reduce repeated blank lines without removing every separator.
Does it remove spaces inside lines?
No. It only removes lines that are empty after optional trimming.
Is this local?
Yes. The text is processed in your browser.