Free Whitespace & Line Break Remover Online
Remove extra spaces, tabs, line breaks, and empty lines from text. 100% client-side — your text stays private.
What counts as whitespace? Whitespace is any character that occupies space without printing a mark — the space (U+0020), the tab (U+0009), the line feed and carriage return that end lines, and invisible relatives such as the non-breaking space (U+00A0) and zero-width space (U+200B). Removing whitespace means choosing which of these to strip: collapse runs of spaces, trim the ends of lines, delete blank lines, or join every line into one.
How to Use the Whitespace Remover
- Paste your text — Drop it into the input box. Cleaning runs as you type and as you change options, so there is no button to press for the checkbox-driven rules.
- Click a Quick Action for the common jobs — The preset buttons set the checkboxes for you: Trim, Collapse Spaces, Remove Tabs, Remove Empty Lines and Remove Line Breaks each switch on exactly the options that job needs.
- Or set the individual options yourself — The five checkboxes combine freely and always run in the same order: trim, collapse, remove tabs, remove empty lines, then join lines. Trim and collapse are on by default because they are the two that never change your words.
- Turn on Show diff to see the whitespace — The output panel then renders your text with tabs drawn as an arrow and line breaks marked with a return symbol, each with a tooltip. It shows where whitespace sits in the source, which is how you find the tab you did not know was there.
- Read the character counts — Original, Result and Saved report the before, after and difference in characters — the quickest confirmation that the options you picked are doing something.
- Copy the cleaned text — Copy writes the output to your clipboard and confirms with a checkmark. Clear empties both panels so you can start on the next block.
How Whitespace Removal Works
Whitespace is not one character but a family of them, and each serves a different purpose. The space separates words, the tab aligns columns, the line feed ends a line, and the carriage return precedes it on Windows. Alongside those sit characters that look like spaces but behave differently: the non-breaking space prevents a line wrapping at that point, and the zero-width space marks a permitted break without occupying any width at all. Text copied out of a PDF, a spreadsheet or a web page routinely carries all of them.
Each option here is a regular expression applied to the text, and they always run in the same fixed order regardless of which boxes you tick:
trim /^\s+|\s+$/ per line → collapse / {2,}/g → tabs /\t/g → blank lines /^\s*\n/gm → join /\n/gOrder matters more than it first appears. Trimming runs before collapsing, so padding at the line ends is gone before runs of interior spaces are squeezed. Joining lines runs last and replaces each line break with a space rather than deleting it, then collapses any doubles that creates — which is why joining a list of items produces a readable sentence instead of running the last word of one line into the first word of the next.
Options Reference
| Option | Pattern | What it does |
|---|---|---|
| Trim per line | /^\s+|\s+$/ |
Removes all whitespace from both ends of every line, including tabs, carriage returns and non-breaking spaces. Interior spacing is untouched. |
| Collapse multiple spaces | / {2,}/g |
Turns any run of two or more spaces into one. Matches the ordinary space only, so tabs between words survive. |
| Remove tab characters | /\t/g |
Deletes every tab in the text rather than converting it to spaces. Tab-aligned columns will close up. |
| Remove empty lines | /^\s*\n/gm |
Deletes lines that are empty or contain only whitespace, compacting paragraphs together. |
| Remove line breaks | /\n/g → space |
Joins everything into a single line, substituting a space for each break and then collapsing the doubles. |
| Remove All Whitespace | /[\s\u00A0\u200B-\u200D\uFEFF]/g |
The one preset that acts immediately on the current text. Strips every whitespace character plus non-breaking, zero-width and byte-order-mark characters. |
The Remove All Spaces and Remove All Whitespace buttons run the same operation. Both remove line breaks and tabs as well as spaces, so a multi-line list comes back as one unbroken string. If you only want the spaces gone while keeping your lines, use the checkboxes instead.
The Invisible Characters That Cause Trouble
Most whitespace problems are hard to diagnose precisely because you cannot see the offending character. Turning on Show diff renders the text with tabs drawn as an arrow and line breaks marked with a return symbol, which is usually enough to reveal a tab masquerading as indentation or a trailing break at the end of a paste.
| Character | Code point | Where it comes from |
|---|---|---|
| Space | U+0020 | Typing. Runs of them often stand in for indentation or alignment. |
| Tab | U+0009 | Code editors and spreadsheet exports, where it is the column separator. |
| Line feed | U+000A | The line ending on Unix, macOS and inside most file formats. |
| Carriage return | U+000D | Paired with the line feed on Windows, leaving a stray character per line. |
| Non-breaking space | U+00A0 | Word processors and HTML. Looks identical to a space but never collapses. |
| Zero-width space | U+200B | Web pages, as a hint about where a long word may wrap. Invisible entirely. |
| Byte order mark | U+FEFF | The first character of some UTF-8 files, which can break a CSV header. |
The checkbox options deliberately target the plain space and tab, since those are what you normally want changed. The non-breaking and zero-width characters are trimmed at line edges but never collapsed between words, which is why a gap can survive a cleanup that appears to have worked. When a value refuses to match another that looks identical, running Remove All Whitespace on both and comparing the results will confirm whether an invisible character is the culprit.
Why Whitespace Cleanup Matters
Beyond appearance, irregular whitespace causes failures that are disproportionately annoying to track down. A trailing space makes two identical-looking values compare as different, which silently breaks joins, lookups and deduplication in any database or spreadsheet. A leading space in a CSV field can push a numeric column into being parsed as text. In configuration files such as YAML, indentation is syntax, so a tab where spaces were expected is a parse error rather than a cosmetic issue.
On the publishing side, runs of spaces do not survive HTML rendering — the browser collapses them — so text that looked correctly aligned in a document arrives on the page with its spacing gone. Normalizing whitespace before content moves between systems means the text you see is the text that will be stored, compared and displayed.
Frequently Asked Questions
Collapse Spaces turns each run of two or more spaces into one and leaves your lines intact, so the text stays readable. Remove All Spaces is far more aggressive than its name suggests: it strips every whitespace character in the text, line breaks and tabs included, so a multi-line list comes back as one unbroken string. Use collapse for prose you still need to read, and remove-all only when you want a single continuous token.
It re-renders the output panel so that the invisible characters become visible: tabs are drawn as an arrow (→), line breaks are marked with a return symbol (↵), and each marker carries a tooltip naming the character. It is a map of where whitespace sits in your text rather than a side-by-side before-and-after comparison, and it is the fastest way to spot a tab pretending to be indentation or a stray break at the end of a paste.
The Remove All Whitespace preset does — it explicitly targets the non-breaking space (U+00A0), the zero-width space, joiner and non-joiner (U+200B–U+200D) and the byte order mark (U+FEFF) alongside ordinary whitespace. The checkbox options are narrower: trimming removes them at line edges, but the collapse rule matches the plain space only, so a non-breaking space between two words is left exactly where it is.
This tool covers the whole whitespace family and can join lines into one, which makes it the right choice for normalizing data or flattening a block of text. The Extra Spaces Remover is deliberately narrower and focuses on spaces within readable prose. If all you need is to fix double spaces and padded line ends in a document, that tool is simpler; if you need tabs and line breaks handled too, stay here.
There is nothing to undo — your input is never modified. Every rule reads the input panel and writes to the output panel, so unchecking an option immediately recalculates the result from the original text. Nothing is committed until you press Copy. The one exception is the Remove All Whitespace preset, which writes straight to the output; typing in the input again recalculates from the checkboxes as usual.
Yes, if trimming or tab removal is on. Trim leading/trailing spaces per line deletes the leading whitespace that Python, YAML and Makefiles treat as syntax, and Remove tab characters deletes tabs outright rather than converting them to spaces. Turn both off before running the tool over source code, or use a formatter written for the language instead.
Almost always an invisible character that is not an ordinary space. A trailing non-breaking space, a zero-width joiner picked up from a web page, or a carriage return left by a Windows line ending will all defeat a comparison while looking like nothing at all. Turn on Show diff to see where the whitespace is, or run Remove All Whitespace over both values and compare those results.
No. Every option is a regular expression evaluated in JavaScript in your own tab — there is no upload, no request and no logging, and the tool keeps working offline once the page has loaded. Note that your text and option settings are written into the page URL so a working state can be bookmarked, so take care before sharing that link if the content is sensitive.
Use Cases
Rejoining a Paragraph Broken by a PDF
PDF text arrives with a line break at the end of every printed line. "Remove Line Breaks" reflows it into a single paragraph that a CMS or word processor can wrap on its own.
Fixing a CSV That Will Not Import
A spreadsheet export carries padded fields and a stray byte order mark on the header row. Trimming lines and stripping all whitespace from the header makes the column names match again.
Tracking Down an Invisible Character
Two records that look identical refuse to match. Show diff reveals the trailing tab, and stripping all whitespace from both confirms the values are otherwise the same.
Flattening Text Into a Single Line
A log message or a JSON string value has to sit on one line. Joining lines substitutes a space for each break, so words stay separated instead of running together.
Compacting a Sparse Export
A report generator leaves blank lines between every row. Removing empty lines compacts the block so the data is readable and shorter to scroll through.