Six Office tools, embedded in your product.
Build your own AI office with Univer Office SDK.
An embeddable, self-hosted Office SDK. People and AI agents edit, calculate and verify office content together — then your team ships it.
npm
$ npm i @univerjs/presets- GitHub stars, including Luckysheet
- 30k+
- SpreadsheetBench accuracy, #1 in Dec 2025
- 68.86%
- Building Office tools, from the Luckysheet team
- 10+ yrs
Works with your agents
Office Harness
Your office environment is an Office Harness.
Content, tools, checks and collaboration in one place, so people and agents finish real work together.
- Office contentSheets, docs, slides, canvases, tables, PDFs
- Editing & calculationEditors, headless processing, formulas
- Verification & feedbackStatus, read-back, render checks
- CollaborationCo-editing, history, worktrees
What you can build
Office agents
Agents that read, edit, calculate and verify your office content.
Online Office with Copilot
Editable Office inside your product, with a built-in Copilot.
Back-office automation
Batch jobs and agent workflows on the same engine.
Beyond generating a file
- Edit
- Calculate
- Check
- Review
- Deliver
Office tools
Office editing, calculation and files.
Built into your product, on content that stays editable.
Node.js and a Rust formula engine. No editor needed.
Controls write to cells; cells update the app.
Model once, then report and present.
Import Excel, Word and PowerPoint. Export in supported formats.
Workspace
- All files
- Sheets
- Docs
- Slides
- Relational Tables
- Canvases
- PDFs
~/jobs ❯ node quarterly-reports.mjs
Read report template
Fill reports from data32/32
Calculate with the Rust formula engine
Write results for the UI
Done: 32 reports· Ready for people to review
~/jobs ❯
Budget · Controls ⇄ Sheet
- FY revenue
- 5,735
- Profit
- 1,943
- Margin
- 33.9%
| A | B | C | |
|---|---|---|---|
| 2 | Growth | input | |
| 3 | Q1 revenue | 1,200 | 1200 |
| 4 | Q2 revenue | 1,344 | =B3*(1+$B$2) |
| 5 | Q3 revenue | 1,505 | =B4*(1+$B$2) |
| 6 | Q4 revenue | 1,686 | =B5*(1+$B$2) |
| 7 | FY revenue | 5,735 | =SUM(B3:B6) |
| 8 | Profit | 1,943 | =B7-Costs |
| 9 | Margin | 33.9% | =B8/B7 |
Drag the slider, or edit B2.
Doc · Report
FY2027 Budget Review
Live sheet · editable
| A | B | C | D | E | |
|---|---|---|---|---|---|
| 1 | Q1 | Q2 | Q3 | Q4 | |
| 2 | Revenue | 1,200 | 1,344 | 1,505 | 1,686 |
| 3 | Operating profit | 340 | 428 | 529 | 646 |
| 4 | Margin | 28.3% | 31.8% | 35.1% | 38.3% |
Slide 3
Quarterly profit
SheetReportDeckOne dataset, one set of formulas
Agents
Agents that check their own work.
They edit real content, read the actual results and fix what’s wrong.
- Read
- Edit & calculate
- Read back
- Verify & fix
Fix from feedback, then verify again.
Plug in your existing agents
Agents call Office tools through an API or CLI and get results and feedback back. Your agent stack stays yours.
You own
- Models
- Task planning
- Orchestration
- Skills
Harness providesAPI · CLI
- Read & edit
- Calculate
- Verify
- Collaborate
Create and edit Office content
Agents change data, formulas, text and slides. Everything stays editable for your team.
Budget assistantDone1m 12s
Raise quarterly growth to 12%, then update the report and slide 3.
- ReadFY2027 Budget · B2
- Set to 12%, recalculated16 cells
- UpdatedBudget review · §2
- UpdatedSlide 3 · chart
Handed back to LinEverything stays editableReview changes
Verify with real feedback
Each signal answers one question. Your rules decide what passes.
Checks3/3 passed
- Execution statusDid it work?16 cells updated
- Value read-backIs the math right?Profit 1,943
- Render checkDoes it look right?Slide 3
“The Office Harness for AI Agents” is the office environment you build with Univer Office SDK.
Collaboration
Collaboration and change management.
Shared state, isolated drafts, and every change traceable.
Real-time co-editing
People and agents edit the same content live. OT resolves concurrent edits; open documents keep working offline and sync on reconnect.
| A | B | C | D | |
|---|---|---|---|---|
| 1 | Line item | Q1 | Q2 | Q3 |
| 2 | Revenue | 1,200 | 1,344 | 1,505 |
| 3 | ||||
| 4 | Headcount | 420 | 441 | 463 |
| 5 | Marketing | 180 | 202 | 226 |
| 6 | R&D | 260 | 273 | 287 |
LinInserted row 3
AgentEdit C4 → moved to C5
OT · all clients in syncOffline edits sync later
Version history
Operation-level history. Trace each change and restore a chosen version.
Version historyoperation-level
- Updated quarterly growth (B2)Budget assistant · just now · 16 cellsCurrent
- Added notes to report §2Lin · 12 min ago · 1 paragraph
- Generated slide 3Report assistant · 1 hr ago · 1 slideRestore
- Adjusted headcountMaya · Yesterday · 4 cells
Worktrees for agents
Each agent works in an isolated draft. Review, compare and preview — then merge or send it back.
mainAgent A · Restructure budgetAgent B · Draft report
Compare · PreviewMerge
Review: cite sources in §2Sent back
ApprovedYour permissions, inline comments
Reuse your sign-in and roles to control view, edit, copy and comment. Discuss on the content, resolve when done.
F9Operating profit · FY
M
MayaDoes this include the new marketing spend?
L
ResolveLinYes — marketing is 15% of revenue.
Permissionsyour rules · server-checked
| Role | View | Edit | Copy | Comment |
|---|---|---|---|---|
| Finance | ||||
| Sales | ||||
| Auditor |
Self-hosting
Integration and self-hosting.
Your product, your infrastructure, your data.
Your productReact · Vue · plain webNo iframe
ThemeToolbarMenusSidebar
Univer Office SDKEditors & APISelection · edits · results
SheetsDocsSlidesRelational TablesCanvasesPDFs
Optional servicesOn-prem, private cloud or your servers
CollaborationFile conversionHeadless
Your infrastructureKeep your stack
Identity & rolesDatabase adapterFile storage
Embed and customize
React, Vue or plain web — no iframe. Theme the toolbar, menus and sidebar, and drive the editor through the API.
Deploy anywhere
Add collaboration, file conversion and headless services as needed. Run on-prem, in a private cloud or on your own servers.
Own your data
Keep your identity system, with server-side checks. Store documents through the database adapter and your own file storage.
Adopt step by step
Start with one editor. Add the rest when you need it.
- Editor
- Headless
- Collaboration
- Agents
Univer provides the Office SDK. You build your own Office Harness. Your product, your workflows, your infrastructure.
Pricing
Open source vs. Commercial
Core editing is free. The complete SDK is commercial.
Open source
FreeApache-2.0
- Sheets & Docs basic editing
- Web SDK core + basic headless
- Agent integration via the open API
- Self-hosted
- Community support
Commercial
Full SDKFrom$99/ month · Business
- Web, Server and AI SDK
- Sheets, Docs, Slides, Tables, Canvases, PDFs
- Real-time collaboration
- Office import & export
- Agent operations, verification & worktrees
- Updates and email support
Need distributed deployment? Choose Enterprise. Premium support: $1,000 / month.
Compare editions
| Feature | Open source | Commercial |
|---|---|---|
| Price | Free | From $99 / month (Business) |
| Commercial use | Allowed under the open-source license | Per commercial license |
| SDKs | Web SDK core, basic headless | Web, Server and AI SDK |
| Products | Sheets, Docs (basic) | Sheets, Docs, Slides, Relational Tables, Canvases, PDFs |
| Sheets basics | Editing, formulas, formatting, filter, sort, tables | Included |
| Sheets advanced | — | Charts, pivots, printing, sparklines, grouping, shapes |
| Docs basics | Editing, formatting, lists, TOC | Included |
| Docs advanced | — | Charts, footnotes, enhanced tables, callouts, quotes, code blocks, printing |
| Office import / export | No Pro file conversion service | Unlimited import; exports per plan |
| Real-time collaboration | No commercial collaboration service | Included; connections per plan |
| Headless runtime | Open-source features | Commercial features |
| Agent integration | DIY via open API | AI SDK: operations, verification, worktrees |
| Deployment | Self-hosted | Self-hosted; Enterprise for distributed |
| Support | Community and docs | Updates + email; premium $1,000 / month |
Capacity, export quotas and support follow your license and order.
Questions,
answered.
What is Univer?
An embeddable, self-hosted Office SDK for sheets, docs, slides, canvases, relational tables and PDFs. Developers use it to build office environments where people and AI agents work together.
What is an Office Harness?
The office environment you build with Univer: content, editing and calculation tools, verification and collaboration in one place, so people and agents can finish tasks together.
Do I need to replace my agent framework?
No. You keep your models, orchestration and Skills. Agents call Univer’s Office tools through an API or CLI.
Does it work with Excel, Word and PowerPoint files?
Yes — import, edit and export supported formats. Validate complex formulas, charts, fonts and embedded objects with your real files. CSV and TSV don’t keep workbook formatting or multiple sheets.
Can people keep editing offline?
Open documents stay editable offline and sync on reconnect. Fully offline apps depend on your product design.
How is Univer licensed?
The open-source core is Apache-2.0. The commercial SDK is licensed separately; the Free Trial is for evaluating it, with some limits.