Add Line Breaks to Text - Split Into Multiple Lines

Add Line Breaks to Text Online

Add line breaks to text to turn a long block or single line into clean, line-by-line output. It is the opposite of joining lines: instead of merging text, this tool inserts new breaks exactly where you want them.

Choose how the text splits: break after punctuation so each sentence gets its own line, break at a delimiter like a comma to spread a list out, break every N characters for fixed-width output, or break every N words for poetry and even line lengths. Paste or type text for instant results, or switch on Batch Process Files to reformat many files at once.

Private by design: all formatting happens in your browser with JavaScript. Your text and uploaded files never leave your device and nothing is sent to a server.

How to Add Line Breaks

Paste your text

Type or paste your text into the Input panel, or click Paste to pull it straight from your clipboard.

Choose a break mode

Pick Punctuation to split into sentences, Delimiter to split on a character such as a comma, Every N chars for a fixed line length, or Every N words for a set number of words per line.

Tune the options

Set the punctuation marks, delimiter, or count for your chosen mode. Keep Trim Lines on to strip extra whitespace and Remove Empty on to drop blank lines from the result.

Copy or download

The Output panel updates live with numbered lines and a Lines Before, Lines After, and Breaks Added count. Click Copy or Download to save the result.

Need to do many files? Click Batch Process Files, then drop in or select your files. Set a filename Suffix (default -formatted) and download them one by one or all at once with Download All.

Features

Break After Punctuation

Split paragraphs into sentences by breaking after the punctuation you choose (default: period, question mark, exclamation mark).

Break at a Delimiter

Split at any separator you type, such as a comma, semicolon, or pipe — perfect for turning CSV or list data into lines.

Break Every N Characters

Create lines of a consistent length and keep words intact by breaking at the nearest word boundary when possible.

Break Every N Words

Put a fixed number of words on each line — ideal for poetry, lyrics, or evenly sized chunks of text.

Smart Text Cleanup

Trim Lines removes leading and trailing whitespace from every line, and Remove Empty filters out blank lines for cleaner output.

Batch File Processing

Upload many text files by click or drag and drop, add a custom filename suffix, and download them individually or all at once.

Real-Time Processing

Results update instantly as you type or change settings, with live Lines Before, Lines After, and Breaks Added counts.

Numbered Output

The output panel shows line numbers so you can verify your formatting and point to any specific line at a glance.

Swap & Shortcuts

Swap the output back into the input to chain edits, and use keyboard shortcuts to copy or clear without reaching for the mouse.

Frequently Asked Questions

How do I split text into sentences?

Use Punctuation mode, which is the default. It breaks after each sentence-ending mark — typically . ? ! — so every sentence lands on its own line. You can change which characters trigger a break in the punctuation field.

How do I add a line break after every comma?

Choose Delimiter mode and enter a comma (,) in the delimiter field. Each comma becomes a line break, so a comma-separated list turns into one item per line. The same works for semicolons, pipes, or any other character you type.

How do I add a line break every N characters?

Select Every N chars and set your target length. The tool breaks at the nearest word boundary before that limit when it can, so words stay whole while each line stays close to the length you chose.

How do I put each word on its own line?

Use Every N words mode and set the words-per-line value to 1. Every word will appear on a separate line. Raise the number for two, three, or more words per line.

Can I use more than one punctuation mark?

Yes. In Punctuation mode, enter every character you want to break after, separated by spaces. For example, . ? ! : breaks after periods, question marks, exclamation marks, and colons.

Why are there empty lines in my output?

Empty lines can appear when there are back-to-back delimiters or punctuation marks. Turn on Remove Empty to filter blank lines out automatically. It is on by default.

Can I add line breaks to multiple files at once?

Yes. Click Batch Process Files, then upload files by clicking or dragging and dropping. Each file is reformatted with your current settings. Set a filename suffix (default -formatted) and download them one at a time or all together.