Remove line breaks, collapse blank lines, or trim lines.
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Text copied from PDFs often arrives broken at every line ending because PDF line breaks are hard-coded into the layout. Email replies often add line breaks at 72 or 76 characters per line.
This tool gives you six explicit modes to handle cases like these: Join with Space or Join with Comma replace every line break with a space or comma (including blank lines between paragraphs, so paragraph structure isn't kept in these two modes); Collapse Blank Lines normalizes runs of multiple blank lines down to one without touching single line breaks; Trim Each Line strips leading/trailing whitespace from every line; Custom Separator lets you join lines with your own delimiter; and Insert Breaks After adds a new line break every fixed number of characters or words, which is the tool's line-wrapping ("Add") mode. Every mode always inserts a real space, comma, or separator in place of a removed line break, so words never merge together.
Remove line breaks is a classic formatting task where the user already knows the exact problem and wants a clean result quickly. This tool covers both directions - six modes for removing, joining, or collapsing line breaks, plus a mode for inserting new ones at a fixed interval.
Paste or type the text you want to transform.
Select how to join, collapse, or trim lines.
Preview changes and apply.
Copy result to clipboard.
Enter text with line breaks you want to clean up, or plain text you want to wrap at a fixed interval.
Pick from six modes: Join with Space, Join with Comma, Collapse Blank Lines, Trim Each Line, Custom Separator, or Insert Breaks After (chars or words).
Click Apply Selected to see the result in the output box; use Undo to step back through your recent changes.
Copy the result to your clipboard or download it as a .txt file.
Best For
Input
"This paragraph was hard-wrapped by a PDF export at a narrow width." (blank line) "This second paragraph starts after a blank line."Result (Join with Space)
"This paragraph was hard-wrapped by a PDF export at a narrow width. This second paragraph starts after a blank line."Join with Space replaces every line break - including the blank line that separated the two paragraphs - with a single space. None of the six modes both join wrapped lines within a paragraph and keep paragraph breaks intact in one pass; Collapse Blank Lines preserves paragraph spacing but doesn't join anything within a paragraph.
Input
"This is an extraordinary example sentence"Result (Insert Breaks After, 12 characters)
"This is an e" / "xtraordinary" / " example sen" / "tence" (a line break inserted every 12 characters)Character mode counts raw characters and inserts a break every N characters with no regard for word boundaries - "extraordinary" splits into "e" and "xtraordinary," and "sentence" splits into "sen" and "tence." Switch to Word mode if you want breaks to land only between whole words.
Use Join with Space to turn hard-wrapped paragraph text into a single flowing block before pasting it elsewhere.
Use Join with Comma to convert a pasted list (one item per line) into a single comma-separated line.
Use Collapse Blank Lines when you only want to normalize multiple blank lines down to one, leaving existing single line breaks untouched.
Use Insert Breaks After in Word mode to wrap long text at a set number of words per line without cutting words in half.
Problem
Solution
Both modes replace every line break - including blank lines between paragraphs - with a single space or comma. They flatten the whole text into one block; they don't distinguish a paragraph break from a mid-paragraph wrap.
Problem
Solution
This mode only normalizes runs of two or more line breaks down to one blank line - it doesn't touch single line breaks, so mid-paragraph wrapping is left exactly as pasted.
Problem
Solution
Insert Breaks After in Chars mode counts raw characters and can split a word in the middle. Use Words mode if you need breaks to land between whole words.
Problem
Solution
Undo restores your previous text/output pair one step at a time using an in-memory history - it doesn't persist between page visits.
It's the only mode that leaves single line breaks alone, so it won't accidentally flatten paragraph structure you want to keep.
Chars mode can cut a word in half at the boundary; Words mode always breaks between whole words, though it also normalizes any extra spacing between words.
Enter your own separator (like " | " or ";") to convert line-broken text into a delimited single line for pasting into a spreadsheet.
Every Apply click saves a snapshot first, so you can step back through recent changes with the Undo button instead of starting over.
Join with Space and Join with Comma flatten every line break, including paragraph breaks, into one block. Collapse Blank Lines preserves paragraph breaks but doesn't join anything within a paragraph - the two behaviors aren't combined into a single "smart join" mode.
Insert Breaks After in Chars mode inserts a break every N characters regardless of word boundaries.
Insert Breaks After in Words mode splits on whitespace and rejoins with single spaces, so any original double spacing between words is lost within each wrapped line.
There's no logic that infers which line breaks are "real" paragraph breaks versus wrapping artifacts - each mode applies the same rule to every line break in the text.
This tool only applies the six fixed text-transformation rules described above - it doesn't analyze or interpret the text's meaning or structure.
The undo history is kept in memory for the current visit - it resets if you leave or reload the page.
Both clean up broken text, but they decide differently what counts as a paragraph break.
| This Tool (Explicit Modes) | A "Smart" Auto-Detecting Tool | |
|---|---|---|
| How paragraph breaks are handled | You choose the mode - no single mode both joins wrapped lines and preserves paragraph breaks | Attempts to infer paragraph boundaries automatically (e.g., blank lines as breaks, single breaks as wraps) |
| Predictability | Every mode applies the same fixed rule to every line break - the result is easy to predict | Depends on the tool's detection heuristic, which can guess wrong on unusual formatting |
| Control | Six distinct modes, including a fixed-width wrap (Insert Breaks After) most simple tools don't offer | Usually one automatic behavior with fewer manual options |
Which should you use?
Use Collapse Blank Lines first if you want to keep paragraph structure, or Join with Space/Comma if you want everything flattened - if you need both wrapped-line joining and paragraph preservation in a single automatic pass, that specific combination isn't one of this tool's six modes.
The most common question is whether joining lines keeps paragraph breaks intact. It depends on the mode: Join with Space and Join with Comma flatten every line break, including blank lines between paragraphs, into one block. Collapse Blank Lines is the mode that preserves paragraph structure, since it only touches runs of multiple line breaks. The FAQ below covers exactly what each mode does, including the Insert Breaks After (add) mode.
Not with Join with Space or Join with Comma - both flatten every line break, including blank lines between paragraphs, into a single space or comma. Use Collapse Blank Lines instead if you want to keep paragraph breaks; it only normalizes runs of multiple blank lines and leaves single line breaks untouched.
Yes. It's the "Insert Breaks After" mode, which inserts a new line break every fixed number of characters or words that you set.
Yes, it can. Character mode counts raw characters with no word-boundary awareness, so a word can be split across two lines. Choose Word mode if you want breaks to land only between whole words.
Yes. All modes recognize \r\n (Windows), \n (Unix/Mac), and \r (legacy Mac) line breaks.
No. CoditTools's line break tool runs entirely in your browser - your text is never sent to any server.
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