What’s the difference between removing blank lines and collapsing them?

Remove deletes every blank line. Collapse compresses runs of blank lines to a single blank line so paragraphs remain separated.

Is my text uploaded anywhere?

No. This tool runs entirely in your browser and does not send your text to a server.

Remove Blank Lines · Collapse Multiple Blank Lines · Whitespace & Newline (LF/CRLF) Cleaner

Q: How many spaces should a tab become?

Enter a number. 0 means don’t convert. Common choices: 2, 4, or 8.

Q: Why unify LF vs. CRLF?

Different operating systems use different newline codes. Mixed files can break diffs, builds, or pipelines. Choose one style for consistency.

How to use

1) Paste your text → 2) Choose options → 3) Run (shortcut: Ctrl/⌘ + Enter)

Input

Options & Run

Blank line handling Remove blank lines delete all Collapse multiple → keep 1 preserve paragraphs

Trim leading & trailing spaces (per line) Remove trailing spaces (per line) Convert tabs to spaces spaces 0 = do not convert (try 2/4/8) Unify newline style (if mixed)

👉 Tip — Lines that contain only spaces or tabs are treated as blank lines. Great for text pre‑processing, code/CSV cleanups, and pasting into editors.

FAQ

What’s the difference between “Remove blank lines” and “Collapse to one”?

Remove deletes every blank line. Collapse compresses any run of blank lines to a single blank line so paragraphs stay separated.

How do you detect a blank line?

Not only truly empty lines — lines that have only spaces or tabs count as blank too. Turn on Remove trailing spaces if needed first.

How many spaces should tabs become?

Enter a number (0 means don’t convert). Common choices: 2, 4, or 8.

Why unify LF vs. CRLF?

Different OSes use different newline codes. Mixed files can break diffs, builds, or pipelines. Choose one style to be safe.

What’s the processing order?

Tabs → spaces → split to lines (temporarily LF) → strip trailing spaces → trim → blank‑line removal/collapse → apply final newline style.

Is my text uploaded?

No. Everything runs in your browser; nothing is sent to a server.

Contact

Questions or suggestions? Email us anytime.

Email: thenaom@naver.com