News
Log in / Sign up
Log in / Sign up

© 2026 illusions lab

Products

illusions

Markdown for Illusions (MDI)

幻辞.com

文豪.skill

Community

Illusions Community

Discord

Github

Downloads

iOS / iPadOS

macOS

Windows

Linux

Previous versions and release notes

幻辞 Database

Contact

Contact

About

日本語English (US)简体中文繁體中文한국어
NewsTerms and privacy

© 2026 illusions lab

Some content on this page is machine-translated and may contain inaccuracies.

  1. Home
  2. /Products
  3. /illusions
  4. /Features
  5. /
  6. Vertical and horizontal writing with illusions

Writing & Editing

Vertical and horizontal writing with illusions

illusions is a writing editor for Japanese novels that lets you switch between vertical and horizontal layouts. Choose a writing direction in the toolbar or settings, then adjust the font, characters per line, line spacing, and indentation to suit your work.

This document was automatically translated.

When writing a novel, the rhythm of the words and the way the paragraphs look change depending on whether you read the same manuscript vertically or horizontally. When writing, I like to write horizontally to move quickly, and when revising, I like to write vertically to check the flow of the work. With illusions, you can edit by switching between vertical and horizontal writing without transferring the original.

In addition to changing the writing direction, you can also adjust the typesetting to suit your work. Whether you want to check the density of a single page like a novel or organize a long manuscript into a format that is easy to read over, you can write and check in the same workspace.

Read your novel in vertical layout as you write

The vertical writing display of illusions is an editing display for scenes where you want to check a Japanese novel arranged vertically. By switching to vertical writing, you can display the document in a layout that allows you to read it from right to left. You can review the position of line breaks, the sequence of conversational sentences, and the density within the page, which are difficult to notice when writing horizontally, from the perspective of reading the work.

Just because it's vertical writing doesn't mean you have to move to another screen to edit. You can edit the current manuscript as is, rewrite the necessary parts, and read it again. The design allows you to change the writing direction while preserving the original content, selection position, and editing history, making it easy to switch during editing.

Switch layouts from the toolbar or settings

The writing direction can be switched from the toolbar at the top of the editor. This is useful when you want to switch quickly while looking at the display. In "Mojikumi" on the settings screen, you can select "Horizontal writing" or "Vertical writing" as the writing direction.

Your chosen writing direction is saved, so the next time you open your manuscript, you can start with your usual writing style. You can choose to use horizontal writing as the basis and check vertical writing only when necessary, or you can always write novels vertically.

Writing directionSuitable situationsHow to read/edit
Vertical writingI want to refine it in a novel-like way, I want to check the rhythm of vertical writingVertical writing display that reads from right to left
Horizontal writingWant to continue inputting, or want to check how to read a document in generalHorizontal text display that reads from left to right

Adjust line length, spacing, and indentation for comfortable reading

In addition to switching between vertical and horizontal writing, you can adjust the display from "Mojikumi" on the settings screen. You can set the font, font size, line spacing, paragraph spacing, and indentation to suit the manuscript and your reading comfort.

The number of characters per line can be adjusted automatically depending on the window size, or you can specify a maximum number of characters. In vertical writing, it works as the "maximum number of characters per column," so you can adjust the line length to suit the screen width and how you reread the manuscript.

Setting itemsThings that can be adjusted
FontSelect a font that matches the mood and readability of your manuscript
Font sizeAdjust display size from 50% to 200%
Line spacing/paragraph spacingAdjust text density and paragraph breaks
IndentationSet the start of a paragraph in characters
Number of characters per lineAutofit or specify maximum number of characters

Use the typesetting function of MDI to handle expressions typical of Japanese novels.

For manuscripts in MDI format, you can use the "Format" menu in addition to displaying vertical and horizontal writing. Operations such as ruby, sub-points, tate-chu-yoko, line break suppression, warichu, character spacing adjustment, indentation/grounding, explicit line breaks, blank paragraphs, and page breaks can be applied to the selected manuscript.

For example, if you want to supplement the reading of kanji, you can use ruby, and if you want to make short numbers or letters in vertical writing easier to read, you can use tate-chu-yoko. This is a typesetting function for people who want to write with not only the meaning of the text, but also the way it appears on the paper.

How to use vertical/horizontal editing

  1. Open your manuscript and switch between vertical or horizontal writing using the button at the top of the editor.
  2. When revising, check the flow of sentences and the appearance of paragraphs in vertical writing, and edit as needed.
  3. In "Mojikumi" on the settings screen, adjust the font, font size, line spacing, paragraph spacing, indentation, and number of characters per line.
  4. For MDI manuscripts, set ruby, tate-chu-yoko, etc. from the formatting menu as necessary.

Vertical/horizontal display is available for manuscripts in MDI, Markdown, and text formats. Note that the MDI-specific formatting menu will be displayed for manuscripts in MDI format.

Write in the layout that suits you, then review the work your way

The display for writing and the display for reading do not always have to be the same. With illusions, you can develop your manuscript while making sure that it is both easy to write and read as a novel.

For those who want to write a novel vertically, and for those who want to refine it by going back and forth between horizontal writing,illusions download pagePlease try it from here.

FAQ

Can I quickly switch between vertical and horizontal writing?

yes. You can switch from the toolbar at the top of the editor or from "Mojikumi" on the settings screen. You can make changes without leaving the current manuscript open.

What can I adjust in vertical view?

You can set the font, font size, line spacing, paragraph spacing, indentation, and maximum number of characters per column. The number of characters per line can also be automatically adjusted to fit the window size.

Can I use ruby ​​and tatechuyoko?

It can be used with MDI format manuscripts. From the typesetting menu, you can select ruby, tate-chu-yoko, sakuten, warichu, indentation/ground, etc.

Can I check Markdown and text manuscripts in vertical writing?

yes. The same vertical and horizontal display functions can be used in MDI, Markdown, and text formats. However, MDI-specific formatting menus are only displayed in MDI format.

Writing & Editing

A function that allows you to write Japanese novels as they appear in the work.

  • Write novels in vertical or horizontal layout | illusions

    illusions is a writing editor for Japanese novels that lets you switch between vertical and horizontal layouts. Choose a writing direction in the toolbar or settings, then adjust the font, characters per line, line spacing, and indentation to suit your work.

    Vertical and horizontal writing with illusions

  • ルビ・縦中横・傍点 | illusions

    MDI 原稿で、読みや表現を補う日本語組版を設定できます。

    ルビ・縦中横・傍点

  • Japanese typesetting command | illusions

    You can perform typesetting operations such as page breaks, indentation, and character spacing adjustments.

    Japanese typesetting command

  • Heading/basic format | illusions

    Perform basic formatting such as headings, emphasis, citations, and lists.

    Heading/basic format

  • 文字組みのカスタマイズ | illusions

    フォント、文字サイズ、行間、段落間隔、字下げを調整できます。

    文字組みのカスタマイズ

  • マルチタブ・分割・別ウィンドウ | illusions

    複数の原稿や資料を並べて作業できます。

    マルチタブ・分割・別ウィンドウ

  • プロジェクト・章ナビゲーション | illusions

    フォルダと章構成から、必要な原稿や見出しへ移動できます。

    プロジェクト・章ナビゲーション

  • MDI・Markdown・テキスト | illusions

    MDI、Markdown、プレーンテキストを同じ環境で扱えます。

    MDI・Markdown・テキスト

見直す・整える

文章を確認し、表現を選び直すための機能。

  • 日本語小説の校正を、執筆の流れで。illusions の校正機能

    illusions の校正機能は、文章の気になる箇所を本文と校正パネルで確認できます。小説・ブログ・学術文書など用途別のモード、置換、無視、ユーザー辞書で、自分の文体を保ちながら推敲を進められます。

    illusions の校正機能

  • 5つの校正モード | illusions

    小説、公用文、ブログ、学術、SNS に合わせて校正方法を選べます。

    5つの校正モード

  • 指摘の修正・無視・再確認 | illusions

    理由を確認しながら置換し、意図した表現は無視または辞書に登録できます。

    指摘の修正・無視・再確認

  • 全文検索・安全な一括置換 | illusions

    原稿やプロジェクトを検索し、内容を確認しながら置換できます。

    全文検索・安全な一括置換

  • 日本語辞書・ユーザー辞書 | illusions

    語を調べ、固有名詞や造語をユーザー辞書で管理できます。

    日本語辞書・ユーザー辞書

  • 品詞別ハイライト | illusions

    品詞を色分けして、文章の構造を見直せます。

    品詞別ハイライト

  • 原稿統計・読みやすさ | illusions

    文字数や文の傾向、読みやすさを確認できます。

    原稿統計・読みやすさ

  • 原稿用紙換算・執筆量 | illusions

    400 字詰め換算と執筆量の変化を確認できます。

    原稿用紙換算・執筆量

  • 単語頻度・語彙分析 | illusions

    単語の出現傾向から、繰り返し使っている表現を見つけます。

    単語頻度・語彙分析

  • 読み上げ・追従ハイライト | illusions

    OS の音声で原稿を読み上げ、再生位置を追って確認できます。

    読み上げ・追従ハイライト

守る・戻す

原稿を保存し、作業の節目へ戻れるようにする機能。

  • 5秒ごとの自動保存 | illusions

    変更のある保存済み原稿を、通常 5 秒ごとに保存します。

    5秒ごとの自動保存

  • セッション・未保存原稿の復元 | illusions

    再起動後にタブや作業状態、未保存の内容を復元できます。

    セッション・未保存原稿の復元

  • 小説の自動保存とバージョン履歴|illusionsで安心して推敲

    illusions は小説原稿を5秒ごとに自動保存し、プロジェクトでは過去の版を履歴として記録します。変更点の比較、手動スナップショット、復元まで、書き直しを支える機能を紹介します。

    illusions の自動保存とバージョン履歴

  • 過去の版へ復元 | illusions

    履歴を比較し、復元前の状態も残したまま過去の版へ戻せます。

    過去の版へ復元

  • 外部変更・競合の検知 | illusions

    他のアプリによる変更を検知し、内容を確認して対応できます。

    外部変更・競合の検知

  • illusions iOS:ひらめきを、いつでも原稿へ | illusions

    コンピュータが手元にないときも、iPhone や iPad で iCloud Drive 経由の MDI 原稿を編集できます。シンプルで安定したネイティブ iOS アプリ、illusions iOS を紹介します。

    illusions iOS

  • ローカル保存・プライバシー | illusions

    原稿は利用者が選んだ保存先に保存され、illusions が本文を収集することはありません。ローカル保存と iCloud 同期時のプライバシーを紹介します。

    ローカル保存・プライバシー

仕上げる・届ける

原稿を印刷・電子書籍・投稿先に合わせて書き出す機能。

  • 小説を、読まれる形へ。illusions の書き出し機能

    illusions なら、日本語小説の原稿を EPUB、PDF、DOCX、HTML に書き出せます。縦書き・ルビ・ページ設定を活かし、投稿、共有、電子書籍制作まで、原稿に合った形式で仕上げられます。

    illusions の書き出し機能

  • 日本語小説のPDFを無料で書き出す | illusions

    縦書きの小説原稿を、用紙と文字組みを確認してから PDF に無料で書き出せます。

    美しいPDF・書き出しプレビュー

  • 版面プリセット・余白自動調整 | illusions

    用紙と文字組みに合わせて、版面設定を整えます。

    版面プリセット・余白自動調整

  • EPUBの本づくり | illusions

    表紙、書誌情報、章分割を設定して EPUB 電子書籍を作成できます。

    EPUBの本づくり

  • なろう・カクヨム・青空文庫向け変換 | illusions

    MDI 原稿を小説家になろう・カクヨム・青空文庫形式などのテキストへ変換し、保存またはコピーできます。

    投稿サイト向け変換

  • 小説原稿のTXT書き出しと印刷 | illusions

    小説の原稿を TXT やルビ付き TXT で書き出し、OS の印刷で紙に出せます。

    TXT・ルビ付きTXT・印刷

自分の環境に合わせる

作業環境を執筆の習慣と端末に合わせる機能。

  • キーマップのカスタマイズ | illusions

    保存や検索などのショートカットを、自分の使いやすいキーに変更できます。

    キーマップのカスタマイズ

  • ライト・ダーク・コンパクト表示 | illusions

    外観と表示密度を選び、作業領域を整えます。

    ライト・ダーク・コンパクト表示

  • 段落番号 | illusions

    長い原稿で位置を確認したり、編集箇所を参照したりするのに役立ちます。

    段落番号

  • 省電力モード | illusions

    バックグラウンド処理を抑え、バッテリー消費を抑えます。

    省電力モード

  • 組み込みターミナル | illusions

    有効化すると、原稿フォルダで補助作業を行える組み込みターミナルです。

    組み込みターミナル