IddaOffice
한국어English日本語

A free desktop office

Your documents and AI,
connected in one window

Open and edit Word, Excel, PowerPoint, PDF and Hangul documents in one window. Ask in plain words and the AI edits the document itself — and shows you what changed.

Download See the features

Windows · Mac (Apple Silicon, beta) · Linux (x64, beta)

The IddaOffice home screen
Opens
  • DOCX
  • XLSX
  • PPTX
  • PDF
  • HWP
  • HWPX
  • ODT
  • MD
  • HTML
  • XMIND

Everything your documents need, in one place

Every document, in its own format

Word, Excel, PowerPoint, PDF, Hangul (HWP, HWPX), ODT, Markdown, HTML and mind maps. Only what you change is saved; the rest stays exactly as it was.

AI that edits the document

Every editor has an AI panel. Ask in plain words, see what changed, and undo anything you don't like.

Runs on your subscription

It uses the Claude or Codex subscription you already pay for — no API key, nothing to pay IddaOffice. No subscription? Connect a free AI.

A full set of PDF tools

Edit text, convert to Word or Excel, read scanned pages, translate whole documents, shrink files and add passwords.

New documents from your material

Turn the documents you collected into a slide deck, an HTML page or a mind map. Twelve slide design templates included.

Works with coding agents

The iddaoffice command line and MCP server let agents like Claude Code and Codex read, create and edit the same documents.

Work together (optional)

One document, your team, no overwrites

Turn it on in Settings and sign in with Google to get shared spaces. While it is off, nothing goes to the server.

  1. Shared spaces

    Your own space, your team spaces, and documents shared with you.

  2. One editor at a time

    Everyone sees who is editing, and every save goes up as a new version. Nobody's save is overwritten.

  3. Invite people

    Invite teammates by e-mail, or share a single document to view or edit.

A program that runs on your PC

Your documents stay on your PC. No usage statistics, and AI requests go out under your own account only when you ask. Collaboration uses the server only when you turn it on.

Download

IddaOffice is free.

macOS

Apple Silicon (M1 and later) · macOS 12 or later · beta

Download for Mac

Coming soon

The app is not signed yet, so you will see a warning the first time. On Windows choose "More info → Run anyway"; on a Mac go to System Settings → Privacy & Security and choose "Open Anyway".