Remove Line Breaks Pro
Remove all line breaks, collapse single breaks while keeping paragraph spacing, or remove only blank lines. Configurable replacement character. Instant, free, private.
Pure browser JavaScript — no libraries required.
How to use this tool
- Paste text with unwanted line breaks.
- Choose a mode: remove all, collapse single, or remove empty lines.
- Click Convert and download or copy the result.
Remove all line breaks, collapse single breaks while keeping paragraph spacing, or remove only blank lines. Configurable replacement character. Instant, free, private.
How it works
Remove Line Breaks Pro fixes text that has been broken into short lines, a common problem when copying from PDFs, email clients, or old terminal output. Paste your broken text and choose one of three modes: remove all line breaks (join into one continuous block), collapse single breaks while keeping paragraph spacing (preserves double-newline paragraph boundaries), or remove only blank lines (keeps single line breaks but removes empty lines).
An optional replacement character lets you substitute something other than a space when joining lines — useful if you need to insert a comma, period, or pipe character between joined lines for CSV or table generation.
The most common use case is fixing PDF copy-paste, where each line of a paragraph ends with a hard line break, making the text unreadable when pasted into a document or sent as an email. The 'collapse single breaks' mode handles this perfectly by joining wrapped lines while preserving intentional paragraph separations.
Worked example
Fix a paragraph copied from a PDF
- Copy text from a PDF — notice each line ends with a hard line break.
- Paste the broken text into the input panel.
- Select 'Collapse single breaks, keep paragraphs' mode.
- Click 'Process' — lines within each paragraph are joined into flowing prose.
- Click 'Copy' and paste into your document.
Properly flowing paragraphs with natural word wrap, ready to paste into any document.
Common mistakes to avoid
- Using 'Remove all line breaks' mode on text that has intentional paragraph breaks — this collapses the entire text into a single block with no paragraph spacing.
- Forgetting to check the replacement character field — if a previous session left a comma there, the current output will have unexpected commas between joined lines.
- Pasting text from a table or bulleted list and expecting meaningful output — structured text with intentional line breaks should not be processed with this tool.
Key terms
- Hard line break
- A line break inserted at a fixed column width (as opposed to word wrap), causing text to appear broken when viewed in a wider context.
- Paragraph boundary
- A double newline (blank line) between blocks of text that signals the start of a new paragraph.
Frequently asked questions
- When should I use 'collapse single breaks'?
- When text copied from a PDF has a hard line break at each line wrap but you want to preserve paragraph breaks — this mode joins wrapped lines while keeping blank-line paragraphs intact.