Your subscription
Sign in with the official Claude Code or Codex program, without an API key, and requests count toward your plan’s usage limits.
The free office suite
that works with your AI.
A desktop app for Word, Excel, PowerPoint and PDF files. Bring your Claude or ChatGPT plan, or edit without AI.
- Free and open source
- No ads or watermarks
- 21 languages
Supported files
Ten file types in one app
AI & pricing
Use the AI plan you already pay for
Free AI
Use the free tier of Google Gemini or OpenRouter with a free API key, or run a model on your own computer.
Pay as you go
Add any provider’s API key and pay that provider for what you use.
Each provider sets its own fees and limits.How to connect AI →
Using AI
Ask AI next to your document
- AI side panel
- Rewrites a paragraph or tidies a table in the file you have open.
- Agent window
- Claude Code or Codex works on the files in a folder you choose.
- Choosing an AI
- Set it up in Settings → AI, or leave AI off and just edit.
The AI settings screen with the provider options and their fields.
Could not load the video. View screenshot
Privacy
Your files stay on your computer
You don’t need an Onyou account, and documents are not uploaded to us.
AI requests
The content a task needs goes directly to the provider you chose.
Sign-in
You sign in through the provider’s own program or page.
No tracking
The app has no usage analytics or telemetry.
Open source
Anyone can read the code, published under Apache-2.0.
Workspace
Working with several documents
Two documents side by side
Split the tabs and read a plan while you edit a budget.
Tabs and split view →
Projects
Keep the files, instructions and conversations for one job together.
Use projects →
Knowledge Vault
Choose a few documents and ask questions about them.
Ask your documents →Get started
Three steps to set up
Download
Get the installer for Windows, macOS or Linux.
Download →If you see a warning
The Windows installer is not code-signed and the Mac build is not notarized, so expect a warning the first time.
Installation guide →Connect AI
Open Settings → AI and connect a subscription or a free AI.
Connect AI →
Open source
Apache-2.0, based on IeumOffice
The source is on GitHub, and IeumOffice’s attribution and licenses are kept.
A GitHub star helps other people find it.