Illusions is a Japanese fiction-writing editor built for uninterrupted drafting. Write vertically or horizontally, add ruby text, run Japanese proofreading, and keep every change safe with autosave and version history. Export your manuscript to PDF, EPUB, or DOCX. Available on iOS, macOS, Windows, and Linux. 縦書き、ルビ、日本語校正、自動保存、履歴、PDF・EPUB・DOCX書き出しを一つに。iOS、macOS、Windows、Linux対応の日本語小説執筆エディタ。
How did Astra change the scope or ambition of what you built?
Maker
GPT-6 Astra helped us improve Illusions behind the scenes.
We used Astra to review and refine the codebase, simplify parts of the architecture, and improve code quality as we continued building a cross-platform writing editor. That gave us more room to focus on the details that matter to Japanese fiction writers: vertical writing, ruby text, Japanese proofreading, autosave, version history, and manuscript export.
Astra did not define the product for us—it helped us build and maintain it with a cleaner, more reliable foundation.
GPT-6 Astraは、Illusionsのコードベースの見直しと改善に活用しました。アーキテクチャの一部を整理し、コード品質を高めることで、クロスプラットフォームの執筆エディタをより保守しやすく、安定した形で開発できるようにしました。
その分、日本語小説の執筆者にとって重要な縦書き、ルビ、日本語校正、自動保存、履歴管理、原稿書き出しの体験に集中できています。
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Maker
📌
Hi Product Hunt! We built Illusions for people who write fiction in Japanese and want their editor to stay out of the way.
Japanese manuscript writing often needs features that general-purpose editors treat as edge cases: vertical writing, ruby (furigana), Japanese proofreading, and reliable manuscript export. We wanted these to feel native, not bolted on.
Illusions brings those tools together with autosave, version history, and exports to PDF, EPUB, and DOCX—across iOS, macOS, Windows, and Linux.
We’d love to hear from writers: which part of your writing workflow feels most frustrating today, and what would make Illusions more useful for you?
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We've come a long way since the old days where trying to write Japanese on a western PC was an absolute nightmare of encoding issues and clunky software. This looks really slick, I especially appreciate the ability to write vertically. Hope the launch goes well!
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This is impressive.. market yourself on Note .. you should get more audience.. great launch.. good wishes for its success..
We've come a long way since the old days where trying to write Japanese on a western PC was an absolute nightmare of encoding issues and clunky software. This looks really slick, I especially appreciate the ability to write vertically. Hope the launch goes well!