Work the way you already do.
The complete office suite, free.
Write documents, work with data, build presentations, and handle HWP or PDF in one app — with no account, subscription, or document limit. Turn AI on only when you need it — and connect a local model to use it with no credits and no limits.
v0.6.3 · macOS 13+ (Apple Silicon) · Windows 10+ (64-bit)
BUSINESS MEMO
Familiar files. One free office suite.
From Microsoft Office formats to HWP and PDF, keep everyday work moving in one desktop app. Opening, editing, and saving local files stays free.
Familiar document editing,
from reports to contracts
Create and save DOCX files while preserving page layouts, tables, images, headers, and styles.
- Edit paragraphs, tables, images, and pages
- Preserve formatting and document structure
- Optional AI drafting, revision, and summaries
Q3 2026 Business Review
New customers grew 28% quarter over quarter, and teams using automation saved an average of 420 hours per month.
Growth was driven by commerce automation and document workflow migration
| Metric | Q3 | QoQ |
|---|---|---|
| New customers | 1,284 | +28% |
| Automations run | 52,400 | +41% |
Work-ready spreadsheets,
formulas and charts included
Edit cells, formatting, formulas, and charts in XLSX, XLS, and CSV files, then save them back into your existing workflow.
- Tables, formulas, filters, and cell formatting
- Charts and data visualization
- AI analysis limited to your selected range
=SUM(D2:D5)| A | B | C | D | E | |
|---|---|---|---|---|---|
| 1 | Channel | Jan | Feb | Mar | |
| 2 | Online | 4,120 | 4,890 | 5,310 | |
| 3 | Retail | 2,300 | 2,150 | 2,680 | |
| 4 | Wholesale | 1,540 | 1,720 | 1,910 | |
| 5 | Subscriptions | 960 | 1,140 | 1,420 | |
| 6 | Total | 8,920 | 9,900 | 11,320 | |
| 7 | |||||
| 8 |
From planning to presenting,
polished presentations
Edit slide structure, text, images, shapes, and themes, then continue working in PPTX format.
- Edit slides, layouts, and themes
- Arrange shapes, text, and images
- Optional AI storylines and first drafts
Not just view.
Edit the PDF in front of you.
Edit text and images, add annotations, and insert, delete, rotate, or reorder pages.
- Edit text, images, and annotations
- Insert, delete, rotate, and reorder pages
- Save safely back to a local file
SERVICE AGREEMENT
This Agreement is entered into by Bati Inc. ("Company") and the Contractor as follows.
Article 1 (Purpose) This Agreement defines the scope and terms of the services provided.
Article 2 (Term) The term shall be twelve months from September 1, 2026.
Article 3 (Payment) The Company shall settle service fees at the end of each month.
A Korean office suite
needs HWP.
Handle public-sector documents, proposals, and formal memos without leaving your workspace. Open, edit, and save HWP or HWPX on macOS and Windows.
Compatibility varies by document structure and object type and continues to improve.
PROJECT PLAN
BatiOffice
AI is a choice, not a lock-in.
Start instantly, connect a key you already own, or keep processing on your computer. The panel stays familiar while the provider changes.
Bati AI
Sign in and start without API setup. Pick Fast, Balanced, or Quality and use a verified model through your plan credits.
BEST FOR · GETTING STARTEDPersonal API key
Connect a key issued by Gemini, OpenAI, or Claude. Bati adds no usage charge; you pay the provider directly.
BEST FOR · DIRECT CONTROLLocal AI Beta
Run Ollama models on your computer. Document content does not go to an external AI server and Bati imposes no usage limit.
BEST FOR · PRIVACYAI subscription link
Use eligible Codex or Claude subscriptions while costs stay with the subscription service.
ROADMAP · EXISTING SUBSCRIPTIONSDon't stop when the document is done.
Move results into Bati Workspace for approvals, connected apps, scheduled runs, and repeatable automation.
Document work
Create a result in Docs, Sheets, Slides, or HWP.
LOCAL FIRSTAI assistance
Draft, analyze, format, and review with document context.
HUMAN IN CONTROLWorkflow automation
Connect approvals, alerts, data collection, and recurring runs.
REPEATABLEThe entire office suite is free.
Pay only when you choose managed AI.
Docs, Sheets, Slides, HWP, PDF, and Markdown remain free. Use your Bati plan only for managed AI or Workspace automation.
- ✓ Docs · Sheets · Slides · HWP · PDF · Markdown
- ✓ No account, subscription, or document limit
- ✓ macOS and Windows apps
Choose how AI is billed
A free Bati account unlocks the AI panel.
- Bati AI — uses plan credits
- Personal API key — no extra Bati fee
- Local AI — no Bati usage limit
Questions, answered
Is it really free, forever?
Document editing — all six editors including HWP — stays free. The only paid parts are server-side Bati AI credits and automation. Your own API keys (BYOK) and local AI remain free to use.
Will my HWP formatting break?
Tables, images, and formatting are preserved while you edit, and you can save back to HWP or HWPX. Compatibility can vary with document structure, so the app shows what changed before saving.
Do I need an account to edit documents?
No. Office and HWP editing stay free without an account. A free Bati account is required only when you enter the AI panel.
Where is my personal API key stored?
It is encrypted in macOS Keychain or Windows Credential Manager and is not passed back into the editor UI.
Why does Bati AI use Fast, Balanced, and Quality?
These stable roles let the server catalog safely update the underlying verified models without forcing users to chase model IDs.
Can local AI process company documents?
With Ollama connected, models and document processing run on your computer. Hardware needs and supported tools vary by model.
Your complete office suite,
ready to download for free.
Get BatiOffice for macOS or Windows. No account, subscription, or document limit for office and HWP editing.