Line Break Tool
Join lines or insert breaks every N chars / after each sentence.
See how it works
Watch a quick simulation of this tool in action — no file needed.
How to use Line Break Tool
Follow these steps — everything happens instantly in your browser.
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Step 1. Pick a mode: “Remove line breaks” (join everything into one paragraph) or “Add line breaks”.
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Step 2. In Remove mode, toggle whether to join lines with a single space or no separator.
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Step 3. In Add mode, choose to break every N characters or after every sentence ending.
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Step 4. Toggle “Keep existing line breaks” if you only want to insert breaks inside existing lines.
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Step 5. Copy the result from the output box.
Why use this tool
Private by design
All processing happens locally in your browser. Open DevTools → Network and you'll see zero file uploads. Ever.
Instant
No upload wait, no queue, no server round-trip. Results appear the moment you drop a file.
Free & unlimited
No accounts, no watermarks, no daily caps. Use it as many times as you like, forever.
Works everywhere
Desktop, tablet or phone — every tool is responsive and installable as a PWA for offline use.
Frequently asked questions
Everything you might want to know about line break tool.
Remove Extra Spaces
Collapse runs of spaces, trim line ends, drop blank lines — live.
Remove Duplicate Lines
Dedupe a list of lines — case-sensitive or trimmed options.
Sort Lines
Alphabetize, sort by length, shuffle or reverse any list.
Text Diff
Compare two texts line-by-line — added/removed highlighted.