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Remove line breaks

Strip or replace line breaks to turn multi-line text into one line.

Related tools

All Transform & clean tools →
Remove line numbersStrip leading line numbers (1. 2) 3:) from every line.Add line numbersPrefix every line of your text with a sequential line number.Duplicate each lineRepeat every line a chosen number of times.Quote each lineWrap every line in quotes, with an optional trailing comma — handy for code arrays.Trim each lineRemove leading and trailing whitespace from every line.One word per lineSplit text so that every word is on its own line.Remove repeated charactersCollapse runs of the same character into one (helllo → helo).Remove accentsStrip accents and diacritics from text, turning é into e and ü into u.

Remove line breaks is free to use as often as you like, directly from this page. It sits under Transform & clean in our catalogue, alongside Remove line numbers and Add line numbers.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What is Remove line breaks?

Strip or replace line breaks to turn multi-line text into one line.

When would I actually use this?

Cleaning up a paste before it goes anywhere: stripping duplicates from a list, normalising case, removing accents for a filename, or sorting lines.

What is the most common mistake?

Sorting text as if it were ASCII. Accented letters land after Z in a byte sort, which puts "Zurich" before "Émile" and produces a list no reader will accept.

How is Remove line breaks different from Remove line numbers?

They sit next to each other but answer different questions: Remove line numbers is the one to open when you need it to strip leading line numbers (1. 2) 3:) from every line. Pick whichever matches what you're starting from — both are free.

Is there a tool for the next step?

Add line numbers is the closest one after this: Prefix every line of your text with a sequential line number.

What else is worth having open alongside it?

Duplicate each line and Quote each line — they come up in the same task often enough to be worth a second tab.

Where do the figures come from?

Transformations use the browser's Unicode-aware string handling, so case changes and sorting respect the locale rather than byte order. Nothing is truncated: what comes out is the whole of what went in.

Further reading

All guides →
How-toCleaning Messy Text: The Order of Operations That Actually MattersStrip tags before decoding entities, trim before deduplicating, collapse whitespace last. Three orderings run in Node, a nine-step pipeline in the right sequence, and the invisible characters — U+00A0, U+200B, U+FEFF — that survive every naive cleanup.GuideStripping Markdown: What Plain Text Loses, and What a Regex Gets WrongA link becomes text with its destination deleted, a nested list loses its hierarchy, a table becomes a row of words. Then the technical half: markdown has no single spec, and a regex stripper mangles a filename, a multiplication sign and the inside of a code block — all shown against a real parser.How-toNumbering the Lines of a Text for a Review with Several PeopleNumbering starts at 1 and cannot be set to 0, the alignment is spaces rather than zeros, and the remover undoes eight of the eleven separators without touching the indentation. What it still cannot do is tell your numbers from its own.ExplainerRemoving Accents Breaks Search — Until You Do It on Both SidesFolding diacritics is a normalisation step, and normalisation only works when the same function runs on the index and on the query. NFC against NFD with the code points shown, and the letters — ø, ł, ß, œ, ı — that survive the strip untouched.ExplainerDetecting the Language of a Text, and Why Short Texts FailMeasured, not asserted: 90 short real phrases across six languages, none declined and 68 right — 76%, falling to 64% under sixteen letters. Four of the wrong answers came back at 100% confidence.ExplainerFinding Duplicates in a List Without a SpreadsheetTwo lines that look identical are often not identical. Case, a trailing space, a no-break space and two different encodings of the same accented letter were each run through the duplicate finder, and it reported no duplicates for three of the four.