Cypher

Write privately. Share deliberately.

A desktop writing studio that keeps everything on your own machine — your manuscripts, your library, and a diary nobody else can open. Share a draft only when you choose to.

Download for Windows · 0.1.0

Unsigned build — Windows will ask you to confirm via More info → Run anyway.

Four rooms, one app

Book

Chapters, volumes, lore and a cast that cross-reference each other. Track drafts by status, watch your word count build, and export to Word, PDF or EPUB when it is ready.

Document

A familiar page-based editor with real pagination, footnotes, a live table of contents, comments and cross-references — for everything that is not a novel.

Reader

Your EPUB and PDF library, with bookmarks, highlights and notes kept alongside whatever you are writing.

Diary

A private journal encrypted on your own machine, behind its own password. Nothing syncs, nothing uploads, and there is no recovery link — because there is no one to recover it from.

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Paste a share link or its code below and it will open in a new tab. No account needed.

Your work stays yours

Local first

Everything is stored on your machine in a single database file. The app works with no internet connection at all.

Encrypted diary

Diary entries are encrypted with AES-256 behind a password only you know. It never leaves your computer.

Sharing is opt-in

Nothing is published unless you press publish. Links can be scoped to certain chapters, expire on a date, and be revoked at any time.