A list exported from a spreadsheet or scraped from a page often ends up with scattered blank lines throughout - not just at the end, but between entries. This removes every blank line, or (if the gaps themselves are meaningful, just excessive) collapses runs of consecutive blank lines down to exactly one instead of deleting them outright.

When you'd use this

Cleaning a pasted list before importing it somewhere that treats blank lines as empty records, or tidying up a document that has accumulated multiple consecutive blank lines from repeated editing.

Common errors

A line that has only spaces or tabs on it (not truly empty, but looks blank) is still treated as blank by default - turn off "treat whitespace-only lines as blank" if you specifically need to distinguish a line with invisible whitespace from a truly empty one.

Frequently asked questions