luppiter Group — Desktop Software

luppiter Writer

A native desktop document editor that opens, edits, and saves real .docx files. Handles everyday Word documents. No subscriptions. No accounts. No cloud. Your documents stay on your machine.

Free
Donations welcome
Download Free
Windows · Mac · Linux Requires Python 3.8+ Real .docx read/write No subscription

⚠ Beta Software — Early Release

luppiter Writer is functional and usable, but this is an early release. Some rough edges remain.

  • Does not yet support: Track Changes, Comments, Review features, Mail Merge, or Macros
  • Some complex .docx formatting (embedded objects, custom styles, advanced tables) may not render perfectly
  • Always keep backups of important documents
📄

Screenshots — Coming Soon

What You Get

A clean, capable Word-compatible editor. Runs on your machine. Handles your files.

Document Editing

  • Native .docx read/write for everyday documents
  • Open, edit, and save .docx files (complex layouts may not survive a round trip)
  • Bold, Italic, Underline, Strikethrough
  • Font family and size control
  • Text color and highlight
  • Paragraph alignment (L / C / R / Justify)
  • Line spacing control
  • Indent / outdent
  • Bullet and numbered lists
  • Heading styles (Normal, H1–H6, Title, Subtitle, Quote)
  • Tables (open and view existing)
  • Image rendering (via Pillow)

Workflow & Interface

  • Microsoft Word-style ribbon interface
  • python-docx powered — industry-standard library
  • Undo / Redo stack
  • Find & Replace
  • Print support
  • Recent files list
  • Dark mode toggle
  • Word and character count
  • Keyboard shortcuts (Ctrl+B, S, Z, Y, P…)
  • Works on Windows, Mac, Linux
  • No install beyond Python 3 + two packages
  • No internet connection required

Privacy & Ownership

  • No accounts required — ever
  • No cloud sync — your files stay local
  • No telemetry, no analytics, no phone-home
  • Free, with no subscription
  • Source code included in download
  • Run it, read it, learn from it
  • No DRM, no activation keys, no online check

System Requirements

Platform
Windows, macOS, Linux
Python
3.8 or higher
Dependencies
pip install python-docx Pillow
Download size
~35 KB (Python source)

⚠ Beta Disclaimer

BETA SOFTWARE — This is an early release. luppiter Writer is functional but not production-complete.

  • Not yet supported: Track Changes, Comments, Review features, Mail Merge, Macros
  • Complex .docx formatting (advanced tables, embedded objects, custom styles) may not render perfectly
  • Use at your own risk — always keep backups of important documents
  • This is not a replacement for Microsoft Word for mission-critical or professional publishing work

Get luppiter Writer

Free download. No subscriptions. Source code included. If it helps you, consider supporting our work.

Free
Download Free

Requires Python 3.8+  ·  pip install python-docx Pillow
Windows · macOS · Linux  ·  Terms of Service

Terms & Privacy

Terms of Service

  • As-is software. luppiter Writer is provided as-is, with no warranty of any kind. Use it at your own risk.
  • Beta software may contain bugs. Save your work frequently. Keep backups.
  • Not mission-critical. Not a replacement for Microsoft Word for professional publishing, legal, or mission-critical document work.
  • No data collection. All processing happens locally on your machine. Nothing is transmitted anywhere.
  • Free to use. Use it personally or at work. Please link to this page rather than rehosting the download.
  • Limitation of liability. luppiter Group shall not be liable for any damages arising from the use of this software.

Privacy Policy

  • No data collected. luppiter Writer does not collect, store, or transmit any personal data, document contents, or usage information.
  • All local. Every file you open and every document you save stays on your machine. Period.
  • No server communication. The software makes no network requests whatsoever.
  • No accounts required. No registration, no login, no cloud sync.

Found a bug? Email us at Caesar192038@proton.me