Collapse Newlines
Collapse multiple blank lines into a single blank line. Useful for cleaning documents, logs, and pasted text while keeping paragraph structure. Runs locally in your browser.
Input
Output
Tip: You can verify in DevTools → Network that nothing is uploaded.
About this Collapse Newlines
Collapse Newlines reduces repeated empty lines so large gaps are cleaned up while preserving the general paragraph structure of the text.
This is useful for text copied from PDFs or emails that contains excessive blank lines. It does not remove normal line breaks inside paragraphs.
- Process text data quickly without external tools
- Transform content for development workflows
- Clean and format text for analysis
- Enable Auto to transform as you type
- Upload text files directly from your device
- Download the result when done
FAQ
No. Everything runs locally in your browser. Nothing you paste is sent to a server.
After the page loads once, it will typically keep working offline (unless you hard refresh with no cache).
No. Your input stays in your browser. Only optional preferences like theme or language may be stored.
Any plain text. You can paste text directly into the input box.
No. It reduces multiple consecutive blank lines down to a single blank line.
No. Only sequences of newlines are collapsed. Line content remains unchanged.
Collapse Newlines keeps paragraphs and line breaks, just reduces excessive blank gaps. Remove Line Breaks joins everything into a single line.