Write it. Shape it. Hear it come to life.

Psitta is the writing platform for people finishing books — draft, structure, get honest AI insight, and hear your words in a natural human voice, all in your own language. Everything you need to finish a book you're proud of, in one place.

The professional writing platform for authors — Windows desktop

Download Psitta

Start with the full Writing Nook experience free for 14 days — no card until you subscribe. Auto-updates as new versions ship.

A real place to write.

The Writing Desk is where your book actually gets written — your work held in Projects and a Library, so drafting feels like a desk that's yours, not a blank screen.

Give your book its bones.

Break your manuscript into parts, chapters, and sections with Blueprints — a real, navigable outline where you always know where you are.

Frameworks that hold your arc.

Check your story against the structures that work — three-act, save-the-cat, hero's journey, seven-point, snowflake — beat by beat, so the arc holds up after the first spark fades.

AI that tells you the truth.

Summarize It gives honest, chapter-by-chapter recaps of what you actually wrote — not what you meant to. Story-Coach nudges you back on course when the writing drifts.

Edit by ear.

Hear your draft read back in a natural human voice with word-by-word highlighting, in premium voices across languages. The clumsy sentence gives itself away the moment you hear it.

In your language, start to finish.

English, Portuguese, Spanish, French — one flag click switches the entire platform. Already have a draft? Bring your Word or PDF manuscript in and get the full Writing Nook on work you've started.

Keep the platform that finishes your book.

Your 14-day trial opens the complete Writing Nook — the Writing Desk, Blueprints, narrative frameworks, Summarize It, Story-Coach, and Reading & Revision, all working together on your book. One platform, every stage of your manuscript — so the book you're proud of actually gets finished.

See everything included in Writing Nook

Notes from the writing desk.

Craft that helps you finish, plus the new Psitta features built to get you there — a few times a month, never noise.

No spam. Unsubscribe anytime.

System requirements

Operating system
Windows 10 or Windows 11
Architecture
64-bit (x64)
Disk space
~150 MB
Internet
Required for natural voices, AI, and account sync

How to install

  1. Click the Download button above
  2. Open the downloaded psitta.appinstaller file
  3. Click Install — no admin rights required
  4. Psitta appears in your Start menu. Launch and create your free account.