Remove or collapse empty lines
Drop every blank line, or collapse runs to a single blank. Whitespace-only lines count as blank.
line one line two line three line four
How to remove empty lines
Choose between dropping every blank line entirely or just collapsing consecutive blanks to a single blank line.
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Paste text
Drop multi-line content with blanks between.
Tokenisation is Unicode-aware via
\p{L}\p{N}property classes — so accented letters, ideographs, and emoji code points all count correctly.linesUTF-8Unicodecode pointsliveinput · textraw · UTF-8A B
loaded · UTF-8UTF-8 · ready - 02
Pick mode
Default: remove all blanks. Toggle 'Collapse runs' to keep one blank between paragraphs.
Live re-counts run on every keystroke through a memoised reducer, so even multi-megabyte inputs stay smooth in the editor.
dropcollapselivememoisedoptionsdrop · optionsall · liveA B
options applied · livelive - 03
Whitespace lines
Lines containing only spaces/tabs count as blank by default. Toggle off for strict empty-string match.
Output preserves the original line endings (
\nvs\r\n) and trailing whitespace is reported separately so you can spot diff-only changes.ws-awareline endingswhitespacediff-cleanreproduciblews · countedblank · ready← treated as blank
counted · livecounted - 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-sideexport · copiedready · done✓ Copied
shipped · ready to shipsuccess
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.
When to remove empty lines
Tidy up content from any source.
Log tidying
Strip blank lines from copied log output. 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-correctEmail cleanup
Remove the empty lines from forwarded chains. 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-cleanCSV cleanup
Drop blank rows before importing to a database. 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 countsDoc paragraphs
Collapse paragraph breaks to a single blank. 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-awareCode paste
Cleanup pasted code blocks with excess blank lines. 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-accurateConfig files
Standardize blank-line conventions. 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.
losslessFrequently asked questions
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