Does it remove lines that only contain spaces?
Yes. Lines that contain only spaces, tabs, or other whitespace characters are treated as empty and removed.
Remove Empty Lines strips all blank lines from your text instantly, producing clean, compact output without unnecessary vertical whitespace. Developers use it to clean up code pasted from documentation that adds extra blank lines, data engineers use it to normalize CSV and TSV files before parsing, and writers use it to tighten up text copied from PDFs that inserts empty lines between paragraphs.
The tool splits the input on newline characters, filters out any line that is empty or contains only whitespace characters (spaces, tabs), and joins the remaining lines back together. This is equivalent to the shell command: grep -v '^'s*$'.
Yes. Lines that contain only spaces, tabs, or other whitespace characters are treated as empty and removed.
The closest equivalent is: grep -v "^\s*$" filename. This tool does the same thing in the browser without any command line.
No. All blank lines are removed. If you want to preserve single blank lines and only remove consecutive duplicates, use a dedicated deduplication tool.
Yes. Everything runs in your browser. Your content is never uploaded anywhere.
Yes. The tool handles large text blocks efficiently. Paste as much as you need.
Yes, completely free with no sign-up.
Tool workspace
Free online empty line remover — instantly delete all blank lines from code, logs, CSV files, or any text. Clean formatting in one click, no install required.
Input
line one line two line three
Output
line one line two line three