⌘ K
extra · all · tabs · blank lines

Remove unwanted whitespace

Four modes — squash extra spaces, strip all whitespace, convert tabs to spaces, or remove blank lines.

Remove Whitespace Workspace
Input size
37 B
6 lines
Output size
30 B
6 lines
Bytes removed
7 B
whitespace
Mode
extra
scope
Mode
input · raw
output · cleaned
hello world

foo bar baz


end
Quick Start

How to remove whitespace

Four different cleanups depending on what you need to strip. Pick the mode that matches your input mess.

  1. 01

    Paste text

    Drop messy text with extra spaces, tabs, or blank lines.

    Tokenisation is Unicode-aware via \p{L}\p{N} property classes — so accented letters, ideographs, and emoji code points all count correctly.

    any textUTF-8Unicodecode pointslive
    input · textmessy · UTF-8
    hello   world
    loaded · UTF-8UTF-8 · ready
  2. 02

    Pick mode

    Extra: collapses runs to single space and trims line ends. All: removes every whitespace character. Tabs→space: converts tabs to single space. Blank lines: removes empty lines.

    Live re-counts run on every keystroke through a memoised reducer, so even multi-megabyte inputs stay smooth in the editor.

    4 modeslivememoisedoptionssnappy
    mode · optionsextra · live
    hello world
    options applied · livelive
  3. 03

    Inspect result

    Compare output to input by line count and bytes-removed.

    Output preserves the original line endings (\n vs \r\n) and trailing whitespace is reported separately so you can spot diff-only changes.

    statsline endingswhitespacediff-cleanreproducible
    diff · countedsaved · ready
    -3 bytes
    counted · livecounted
  4. 04

    Copy or download

    One click.

    Copy writes via the Async Clipboard API; downloads ship as text/plain; charset=utf-8 — nothing leaves your tab.

    copyclipboardtext/plainblobclient-side
    export · copiedready · done
    ✓ Copied
    shipped · ready to shipsuccess
Pro tips

Text-processing fundamentals worth knowing

Tokenise with Unicode classes

Use \p{L}\p{N} with the u flag so accents, ideographs, and emoji count properly.

Normalise line endings

Convert \r\n to \n before diffing or hashing — Windows-vs-Unix endings produce phantom changes.

Mind invisible characters

Zero-width joiners, BOMs, and non-breaking spaces look identical to ASCII space. Strip them before comparison or storage.

Stream don’t slurp

For multi-megabyte text, iterate line-by-line rather than loading everything to memory — keeps the tab responsive.

Choose collation deliberately

Default JS sort is code-point order, not human alphabetical. Use Intl.Collator for locale-aware sorting.

Re-run after normalisation

NFC vs NFD changes byte length but not visible glyphs. String.prototype.normalize() before counts and comparisons.

Related toolsTrim TextRemove Empty LinesTabs ↔ SpacesRemove Line BreaksIndent TextPad Text
Use Cases

When to remove whitespace

Anywhere stray spacing causes problems.

URL building

Strip all whitespace before encoding URLs or building slugs. Tokenisation uses Unicode property classes (\p{L}, \p{N}) with the u flag so accents, ideographs, and emoji code points all count correctly. Surrogate-pair-aware counts mean 🚀 weighs 1, not 2.

Unicode-correct

Tweet length

Squash extra spaces to fit character limits. Result updates as you type — paste and watch totals settle in milliseconds even on multi-megabyte inputs. Heavy work runs through a memoised reducer so the editor never janks.

diff-clean

Config cleanup

Normalize tabs vs spaces in config files. Output normalises line endings to LF for clean diffs across platforms. Windows-vs-Unix CRLF mismatches disappear, which keeps git blame honest and review comments focused on real changes.

instant counts

OCR cleanup

OCR often produces extra whitespace. Code-point counts are stable across NFC/NFD normalisation. Pair with the Reading Time Calculator to layer scan-time on top of raw counts, useful for editorial budgets and SEO meta-description limits.

platform-aware

Log triage

Squash duplicate blank lines in noisy logs. All processing runs client-side — paste sensitive or pre-publish copy without it leaving the tab. The clipboard API writes UTF-8 text/plain so it survives transit to any editor or CMS.

code-point-accurate

Email signatures

Strip the extra blank lines from forwarded chains. Same input plus same options always produces identical output, so the tool is safe to embed in CI scripts or doc-generation pipelines without race conditions.

lossless
FAQ

Frequently asked questions

Single spaces between words. Trims line starts and ends. Newlines are kept as-is.
Every whitespace character — spaces, tabs, newlines, Unicode whitespace. Output is on one line.
Yes by default. The 'Tabs→space' mode converts them to a single space without affecting other whitespace.
U+00A0 is included as whitespace in 'all' mode. 'Extra' mode does NOT touch it (since \s matches but JS regex /s doesn't always match U+00A0 — depending on flags).
No. All processing runs locally.
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