Clean Up Whitespace
Normalise line endings, strip trailing spaces and collapse runs of blank lines into one. Free, runs offline.
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Normalise line endings, strip trailing spaces and collapse runs of blank lines into one. Free, runs offline.
How to use Clean Up Whitespace
- Paste or type your contentThe result appears as you type — there is no submit button.
- Read and copy the resultThe output updates live and the copy button takes it in one click.
Nothing you enter leaves your device
All of the work happens inside your browser. Whatever you type is never packaged up and sent to a server, and no request this page makes carries it.
That makes it safe for contract amounts, personal details and internal documents you would rather not hand to a third party — close the tab and it is gone.
What this tool does not do
Clean Up Whitespace only does what a browser can do on its own — it talks to no backend service. So it keeps no history for you and syncs nothing across devices; if you need a record, copy or download the result.
It is also not a substitute for professional judgement. For legal, medical or tax decisions, treat the output as a starting point rather than a final answer.
Frequently Asked Questions
- What does this fix?
- Mixed Windows and Unix line endings, trailing spaces at the end of lines, and long runs of blank lines.
- Will it change my content?
- No. Only invisible whitespace is touched — every visible character stays exactly as it was.