Whitespace Cleaner is a free strings & text tool that runs entirely in your browser — trim, collapse, strip blank lines. No upload, no account, no limits.
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How to use Whitespace Cleaner
Open the Whitespace Cleaner tool.
Paste or type your text into the input field.
The output updates as you type — adjust the options if you need a different format.
Copy the result, or share the URL to hand the exact input to someone else.
About Whitespace Cleaner
Clean up messy spacing with toggleable rules: trim leading and trailing whitespace from each line, collapse runs of spaces and tabs into one, remove blank lines, and convert tabs to spaces. Combine them to normalize any pasted text.
What people use it for
Strip trailing spaces and extra blank lines from pasted code or prose.
Collapse irregular spacing into single spaces.
Convert tabs to spaces for consistent indentation.
Frequently asked questions
What does it clean?
Trim per-line whitespace, collapse multiple spaces, remove blank lines and convert tabs to spaces — each is an independent toggle.
Is it private?
Every calculation happens on this page, in your own browser. Your input is never sent to a server, never logged and never used for training — which also means the tool keeps working when you are offline.