How Do I Use Textslave's Newline Tool to Remove, Replace, or Add Line Breaks in Text?

Paste your text into Textslave's Newline section, choose the operation you need — remove all newlines, replace them with a string, insert them at a fixed interval or around a word, or word-wrap by character count — then use Preview to check the result before saving. All five operations share the same advanced line filters, so you can limit the change to lines that are equal to, different from, containing, or lacking a given string, or that start or end with it. The tool runs in the browser and needs no setup beyond having your text ready.

The five Newline operations at a glance

Each operation has its own Preview and Save controls, and each carries the same advanced options block for filtering which lines are processed.

Removing newlines

Use Remove all when you want multi-line content — a list copied from a spreadsheet, wrapped paragraphs from a PDF, a column of addresses — collapsed into a single line. Paste the text, run the operation, preview, and save. Because the tool only strips line breaks, spacing inside each line is untouched; if the joined result looks cramped, run the Whitespaces & Tabs section afterward to normalize repeated spaces.

Replacing newlines with a chosen string

Replace newline takes whatever you type in the replacement field and puts it where each line break was. Common choices are a single space (to reflow wrapped text into paragraphs), a comma plus space (to turn a column into an inline list), or a pipe character for delimited output. The replacement is literal text, so you can enter multi-character strings, not just single symbols.

Adding newlines

Three separate operations cover insertion:

• Add a newline each takes a character count and breaks the text at that interval — useful for chunking a long unbroken string into fixed-width segments.
• Add a newline after / before targets a specific word, placing the break on the chosen side of every occurrence.
• Word wrap also takes a character count but wraps at that width, which suits preparing text for a fixed-width display or a plain-text document with a line-length limit.

If you only want breaks around some occurrences of a word rather than all of them, the advanced filters below let you restrict the operation to matching lines.

Filtering which lines are affected

Every Newline operation includes an advanced options block with the same controls: process only text lines that are equal to, different from, containing, or lacking a string, with the match applied everywhere, at the start, or at the end. This is what makes the tool practical on mixed content. For example, if a pasted log has header lines you want to keep intact and data lines you want joined, filter to the lines lacking the header prefix and apply Remove all only to those.

Verifying before you commit

Preview shows the transformed text before anything is saved, so check three things: that the line count matches what you expected, that filtered-out lines are unchanged, and that the replacement string appears where line breaks used to be. If the preview is wrong, adjust the filter or the character count and preview again — nothing is committed until you save.

Common snags

• Empty lines survive Remove all as blank space. If the source had double line breaks, removing newlines can leave gaps; run Remove empty lines in the Duplicate lines section, which also has an option to include lines containing only whitespace.
• Character counts include spaces. When adding newlines every N characters, spaces count toward N, so the visible break points may not align with word boundaries.
• Filters are line-based. They select whole lines to process or skip; they do not edit parts of a line. For partial-line edits, use the Substring or Word operations in the same section.
• Replacement text is not escaped. Whatever you type is inserted as-is, so avoid characters you don't want appearing literally in the output.