Text accumulates stray whitespace from all sorts of sources: pasting from a spreadsheet leaves tab characters behind, copying from a PDF leaves inconsistent spacing, an old document edited by several people ends up with a mix of single and double spaces after sentences. None of that whitespace is usually visible until it causes a real problem, a broken comparison in code, a misaligned column, an accidental extra blank line in a place a template does not expect one.
Every option runs as a plain text transformation directly in your browser. Nothing you paste is uploaded, so cleaning up an internal document or a piece of source code is exactly as private as editing it in a local text editor.
The four cleanup options this whitespace remover offers
Each option targets a specific kind of stray whitespace, and they can be combined freely since they do not conflict with each other, running in a sensible order so the result is what you would expect regardless of which combination is turned on.
- Trim lines: removes leading and trailing spaces and tabs from every line, leaving the visible content untouched.
- Collapse repeated spaces: turns any run of two or more spaces within a line into a single space.
- Remove blank lines: deletes any line that contains nothing but whitespace, tightening up excessive vertical gaps.
- Convert tabs to spaces: replaces every tab character with a fixed number of spaces, useful before pasting code into a tab sensitive tool.
Why trailing whitespace matters more than it looks like it should
A trailing space at the end of a line is invisible in almost every text editor and completely invisible once the text is displayed on a web page, since browsers collapse it visually. It is not invisible to a computer, however. Two lines that look identical to a human eye but differ by a single trailing space will fail an exact string comparison, break a diff that should show no changes, or bloat a file with bytes that serve no visible purpose. Trimming lines removes exactly this kind of hidden difference.
Collapsing repeated spaces without breaking indentation
Collapsing repeated spaces operates within each line independently and does not touch the line breaks between lines, so a document's paragraph structure survives untouched. It is meant for cleaning up sentences with an accidental double space after a period, or a spreadsheet export with inconsistent internal padding, not for reformatting deliberately indented code, since running it on indented code would collapse meaningful leading whitespace along with the accidental repeated spaces elsewhere in the line. This whitespace remover leaves indentation alone unless trim lines is also switched on.
Converting tabs to spaces
Tabs and spaces look the same on screen in most editors but behave very differently once text moves between tools. A tab character can render as two, four or eight columns wide depending entirely on the receiving application's settings, which is exactly why pasting tab indented text into a tool with different tab settings often looks misaligned even though nothing about the underlying text actually changed. Converting every tab to a fixed number of spaces removes that ambiguity, so the text looks the same everywhere it is pasted afterward.
Removing blank lines and remove extra spaces together
Combining remove blank lines with the other options handles the most common request people bring to a whitespace remover in one pass: a document pasted from somewhere else that has become littered with double spaced sentences, tab indentation, trailing spaces and unnecessary blank lines all at once. Turning on every option cleans all four problems together, producing tightly formatted text without needing to run several separate passes.
How to remove whitespace from text
- 1
Paste your text
Drop a text file or paste text with unwanted spacing, tabs or blank lines into the input box.
- 2
Choose your cleanup options
Turn on trim lines, collapse repeated spaces, remove blank lines or convert tabs to spaces, in any combination.
- 3
Set a tab width if needed
If converting tabs, choose how many spaces each tab character should become, commonly two or four.
- 4
Clean and copy
Press remove whitespace to produce the cleaned text, then copy it or download it as a plain text file.
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Sources and further reading
- MDN: String.prototype.trimThe browser method this tool uses to strip leading and trailing whitespace from each line.developer.mozilla.org
- Unicode UAX #14: Line Breaking AlgorithmDefines how whitespace and line breaking characters are classified, relevant to how this tool identifies blank lines.unicode.org
- RFC 5198: Unicode Format for Network InterchangeCovers consistent handling of line endings, relevant to how this tool splits text into individual lines before cleaning each one.rfc-editor.org
Frequently asked questions
Common questions about the whitespace remover.
No. Every option only affects spacing, tabs and blank lines. The actual words, numbers and punctuation in your text are never altered, added or removed, only the whitespace surrounding and between them is cleaned up according to whichever options you have turned on.
Turn on the collapse repeated spaces option alone, without remove blank lines. It replaces any run of two or more spaces within a line with a single space, but never touches the line break characters themselves, so your paragraph and line structure stays exactly as it was.
Any line containing nothing but spaces, tabs, or literally nothing at all counts as blank and is removed when this option is enabled. A line with even a single visible character, including a lone punctuation mark, is kept, since the option only targets lines that are entirely whitespace.
Tabs render at different widths depending on the application displaying them, so text that looks correctly aligned in one tool can appear misaligned once pasted into another with different tab settings. Converting every tab to a fixed number of spaces removes that inconsistency, ensuring the text looks the same everywhere it ends up.
Yes. This tool processes text entirely inside your browser using JavaScript string methods, so nothing you type or drop in is ever sent to a server. You can confirm this by watching your browser's network activity while running the cleanup, which shows no outgoing request carrying your text.
Yes, as part of trimming each line individually, the first and last lines of the whole text are trimmed the same as every line in between. If remove blank lines is also enabled, any entirely blank lines at the very start or end of the text are removed as well, leaving the cleaned text starting and ending on real content.