文章やファイルの文字化けを、ブラウザー内で復元します。

使い方
  1. ファイルを選ぶか、文章を貼り付けます。
  2. 「自動復元」「選択範囲を復元」「全文を一括復元」から選びます。
  3. 復元結果を確認し、ファイルを保存するか、文章をコピーします。

書式の扱い：Wordを再作成するのではなく、元のOOXML文章部分を変更します。太字・フォント・表・画像・ヘッダー・フッターなどは原則維持されます。赤文字にする「�」は、その文字だけを別の書式要素に分けて色を付けます。文字数の変化に伴う折り返し・改ページの変化はあり得ます。

注意：「�」は必ずしも復元不能な箇所の全てを表すわけではありません。すでに別の文字へ置き換わったデータは判定できない場合があります。意図的に「�」を書いた場所も赤字化されるため、不要な場合はチェックを外してください。画像中の文字、古い .doc、暗号化ファイルには対応しません。

プライバシー：処理はこのHTMLのJavaScriptがPC内で行い、インターネット通信は不要です。元ファイルは上書きしません。マクロ付きWordはマクロを含むZIP部品を保持しますが、署名付き文書は署名検証が失敗することがあります。

ファイルを選択

ファイルをここにドロップまたはファイルを選択

Word、Excel、PowerPoint、TXT、CSVなど

ファイルを選択してください。

復元結果

赤字になる「�」の位置

この文字は元の情報がすでに失われているため、推測で置き換えずそのまま残します。赤い文字だけを文書上で手動確認できます。

プレビュー・範囲指定

自動で決められない短い文字などを確定できます。段落を選び、プレビュー上で文字の始点から終点まで選択してください。複数の範囲を順に採用できます。プレビューを確認してから採用します。

解析後に使えます。

範囲に重なる既存の候補は、この指定に置き換わります。選択範囲以外の元の文字と書式は維持します。

修復候補を確認

修復候補一覧

候補を確認し、修復済みファイルを作成してください。

MojiBack 利用規約

第1条（適用）

本規約は、Minepaceが提供する文字化け復元ツール「MojiBack」（以下「本ツール」）の利用に適用されます。

第2条（利用目的と復元結果）

本ツールは、個人、教育、業務、商用を含む適法な目的で無料で利用できます。復元した文章やファイルは、加工、公開、配布、販売に利用できます。Minepaceへの利用申請やクレジット表記は不要です。

第3条（文章とファイルの権利）

元の文章やファイルに含まれる著作物などの権利は、復元後も元の権利者に帰属します。第三者の権利が関わる場合は、必要に応じて許諾を得るなど、適用される法令や利用条件に従ってください。

第4条（文章とファイルの処理）

入力した文章や選択したファイルはブラウザー内で処理し、その内容をMinepaceのサーバーに送信しません。保存時には復元結果を別ファイルとして書き出します。

第5条（動作と復元結果）

文字コードの誤変換で情報が失われた場合や、複数の復元結果が考えられる場合があります。復元の正確さ、プレビューの再現性、元の書式や機能の保持は保証されません。復元した内容は提出や配布の前に確認してください。

オープンソースライセンス

Office Open XML Viewer（MIT）

docx-preview（Apache License 2.0）

kuromoji.js と mecab-ipadic の単語コスト・品詞接続コストを使用。辞書は同じサイトから取得し、文章の復元はブラウザー内で行います。

Library dependencies
====================

This software includes a binary and/or source version of data from

* mecab-ipadic-2.7.0-20070801

which can be obtained from

http://atilika.com/releases/mecab-ipadic/mecab-ipadic-2.7.0-20070801.tar.gz

or

http://jaist.dl.sourceforge.net/project/mecab/mecab-ipadic/2.7.0-20070801/mecab-ipadic-2.7.0-20070801.tar.gz



Copyright and license
=====================


mecab-ipadic-2.7.0-20070801
---------------------------

Copyright 2000, 2001, 2002, 2003 Nara Institute of Science
and Technology.  All Rights Reserved.

Use, reproduction, and distribution of this software is permitted.
Any copy of this software, whether in its original form or modified,
must include both the above copyright notice and the following
paragraphs.

Nara Institute of Science and Technology (NAIST),
the copyright holders, disclaims all warranties with regard to this
software, including all implied warranties of merchantability and
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whatsoever resulting from loss of use, data or profits, whether in an
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A large portion of the dictionary entries
originate from ICOT Free Software.  The following conditions for ICOT
Free Software applies to the current dictionary as well.

Each User may also freely distribute the Program, whether in its
original form or modified, to any third party or parties, PROVIDED
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NO WARRANTY

The program was produced on an experimental basis in the course of the
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to users as so produced on an experimental basis.  Accordingly, the
program is provided without any warranty whatsoever, whether express,
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includes, but is not limited to, any warranty of the quality,
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Each user of the program will agree and understand, and be deemed to
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the program and, accordingly, the entire risk arising from or
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Therefore, neither ICOT, the copyright holder, or any other
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foregoing by his or her commencement of use of the program.  The term
"use" as used herein includes, but is not limited to, the use,
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production of secondary products from the program.

In the case where the program, whether in its original form or
modified, was distributed or delivered to or received by a user from
any person, organization or entity other than ICOT, unless it makes or
grants independently of ICOT any specific warranty to the user in
writing, such person, organization or entity, will also be exempted
from and not be held liable to the user for any such damages as noted
above as far as the program is concerned.
˜˜


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内蔵辞書と判定について

日本語の語彙 460,233 表記を辞書として配信しています。辞書との一致と前後10文字を比較します。一般語のつながりを評価する仕組みで、文章の意味を理解するAIではありません。二重・三重の文字化けは対象外です。

辞書データ：JMdict / EDICT © James William BREEN and The Electronic Dictionary Research and Development Group。jmdict-simplified 3.6.2、辞書日付 2026-10-26 より日本語の表記と一般語フラグを抽出・正規化。派生辞書データは CC BY-SA 4.0。

EDRDGのライセンスと更新案内 ／ CC BY-SA 4.0 ／ 辞書データの配布元。辞書を更新するときは、新しい配布データからこのHTMLを再生成します。