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Whitespace & Indentation Cleaner

Clean up messy text or code in one paste. Strip trailing whitespace, collapse runs of blank lines, swap tabs for spaces (or vice versa), normalize CRLF/LF/CR line endings, and replace weird Unicode spaces with plain ASCII — with live before/after stats and toggleable rules so you only touch what you want.

ツール要約

このツールは構造化された入力を受け取り、サーバーへアップロードせずにブラウザで決定的な出力を返します。

ツール名
Whitespace & Indentation Cleaner
入力の目的
変換・検証・分析するソースコンテンツを入力してください。
出力の目的
コピー・再利用・デバッグに適した正規化された出力を受け取ります。
入力例
function hello ( name ) { \tconsole.log( "hi " + name ); return true; }
出力例
function hello ( name ) { console.log( "hi " + name ); return true; }
Recent inputs0

Your last 5 inputs will appear here.

Spaces2927(-2)
Tabs11
Newlines75(-2)
Trailing-WS lines10(-1)
Blank lines42(-2)
  function   hello (  name  )   {
  	console.log(  "hi " +  name );

   return  true;
}

ツールの紹介

Clean up messy text or code in one paste. Strip trailing whitespace, collapse runs of blank lines, swap tabs for spaces (or vice versa), normalize CRLF/LF/CR line endings, and replace weird Unicode spaces with plain ASCII — with live before/after stats and toggleable rules so you only touch what you want.

ツール概要

Whitespace bugs are the silent productivity drain — emails with double spaces, code reviews with mixed indentation, CSV exports with no-break spaces hiding in cells. This tool gives you a focused interface for the common cleanups: trim each side independently, collapse internal runs, drop or merge blank-line gaps, convert between tab and space indentation at any width, and rewrite line endings to LF, CRLF, or CR. Everything runs locally.

ユースケース

  • Normalize indentation when pasting code from a chat or browser
  • Strip trailing whitespace before committing to git
  • Convert CRLF line endings to LF for Linux build environments
  • Remove no-break spaces and other weird Unicode whitespace from CSV exports
  • Clean up email content with double spaces and inconsistent line breaks

入力/出力の例

Trailing trim + collapse blank lines + tabs→spaces + normalize Unicode spaces.
入力の目的
  function   hello (  name  )   {
  \tconsole.log(  "hi " +  name );  


   return  true;
}
出力の目的
function hello ( name ) {
  console.log( "hi " + name );

  return true;
}

よくある質問

Will this corrupt strings inside code?+
Be careful with 'collapse internal spaces' and 'spaces to tabs' on code that has spaces inside strings or significant alignment — those run on every character including string contents. For most cleanups, trim and blank-line rules are safe.
What counts as a Unicode space?+
No-break space (U+00A0), em/en spaces, thin space, hair space, zero-width space, ideographic space, and similar — all the troublemakers that look like regular spaces but break grep, diff, and CSV parsing.
Why might I want CR or CRLF endings?+
CRLF is the Windows default and is required by some Windows-only tools and protocols. CR is the classic Mac OS 9 ending and rarely useful today. LF is the modern default for Linux, macOS, and most build tools.
Is my text uploaded?+
No. All processing runs in the browser.

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