Univer Integrate

Embed Univer in an application and operate it through the public Facade API.

Source baseline: Univer 1.0.0-beta.0, synchronized with the current dream-num/univer source. First inspect the user's installed @univerjs/* version and existing setup; preserve that version when modifying an existing project.

1.0 product boundary

The product matrix represented by UniverInstanceType now covers Sheets, Docs, Slides, Bases, Boards, and PDFs. This OSS skill owns Sheets and Docs preset integration plus the OSS Slides package boundary. Use univer-pro-integrate for the current licensed Slides product and for Bases, Boards, or PDFs; those products use separate Pro plugins, Facade entries, CSS, and unit snapshots.

Choose an integration mode

• Use Preset Mode for a new application or ordinary integration. Presets compose the required plugins and Facade registrations; browser styles and locale bundles remain explicit imports.
• Use Plugin Mode only when the application needs custom loading, smaller bundles, plugin replacement, or exact registration control. Read references/plugin-registry.md before composing plugins manually.
• Use univer-node-backend for a dedicated headless Node.js workflow.

Quick start: Sheets preset

Keep every @univerjs/* dependency on one exact version:

npm install @univerjs/presets@1.0.0-beta.0 @univerjs/preset-sheets-core@1.0.0-beta.0 react@19.2.8 react-dom@19.2.8 rxjs@7.8.2

import { UniverSheetsCorePreset } from '@univerjs/preset-sheets-core';
import UniverPresetSheetsCoreEnUS from '@univerjs/preset-sheets-core/locales/en-US';
import { createUniver, defaultTheme, LocaleType, mergeLocales } from '@univerjs/presets';

import '@univerjs/preset-sheets-core/lib/index.css';

const { univer, univerAPI } = createUniver({
  locale: LocaleType.EN_US,
  locales: {
    [LocaleType.EN_US]: mergeLocales(UniverPresetSheetsCoreEnUS),
  },
  theme: defaultTheme,
  presets: [
    UniverSheetsCorePreset({
      container: 'app',
    }),
  ],
});

const workbook = univerAPI.createWorkbook({
  id: 'workbook-1',
  name: 'Demo',
  sheetOrder: ['sheet-1'],
  sheets: {
    'sheet-1': {
      id: 'sheet-1',
      name: 'Sheet1',
      rowCount: 100,
      columnCount: 20,
    },
  },
});

workbook.getActiveSheet()!.getRange('A1:B2').setValues([
  ['Hello', 'Univer'],
  [1, 2],
]);

window.addEventListener('pagehide', () => univer.dispose(), { once: true });

In a component framework, call univer.dispose() from the component's own teardown instead.

The page needs a sized container:

<div id="app" style="height: 100vh"></div>

Add features with presets

Install each feature at the same version as @univerjs/presets, import its locale, and append its preset:

import { UniverSheetsDataValidationPreset } from '@univerjs/preset-sheets-data-validation';
import UniverPresetSheetsDataValidationEnUS from '@univerjs/preset-sheets-data-validation/locales/en-US';

import '@univerjs/preset-sheets-data-validation/lib/index.css';

const { univerAPI } = createUniver({
  locale: LocaleType.EN_US,
  locales: {
    [LocaleType.EN_US]: mergeLocales(
      UniverPresetSheetsCoreEnUS,
      UniverPresetSheetsDataValidationEnUS,
    ),
  },
  presets: [
    UniverSheetsCorePreset({ container: 'app' }),
    UniverSheetsDataValidationPreset(),
  ],
});

Available OSS presets are listed in references/plugin-registry.md. Import the stylesheet owned by every browser preset. Do not register both a preset and the same underlying plugin.

Facade API rules

Preset packages register their Facade extensions. In Plugin Mode, explicitly import the /facade entry for every capability used:

import { FUniver } from '@univerjs/core/facade';

import '@univerjs/engine-formula/facade';
import '@univerjs/sheets/facade';
import '@univerjs/sheets-formula/facade';
import '@univerjs/ui/facade';

const univerAPI = FUniver.newAPI(univer);

Prefer feature-level Facade methods and builders over internal services:

const workbook = univerAPI.getActiveWorkbook();
if (!workbook) throw new Error('No active workbook');

const worksheet = workbook.getActiveSheet();
if (!worksheet) throw new Error('No active worksheet');

worksheet.getRange('A1')
  .setValue('Hello')
  .setBackground('#ff0000')
  .setFontColor('#ffffff');

const snapshot = workbook.save();

Read references/facade-api-guide.md for the current method names and feature import map.

Version policy

1. Inspect package.json, the lockfile, or node_modules/@univerjs/core/package.json.
2. Reuse the project's exact installed version for every @univerjs/* package.
3. For a new project targeting this source baseline, use 1.0.0-beta.0.
4. Do not mix OSS or preset package versions. If Pro is present, align @univerjs-pro/* to the same release line too.

Runtime compatibility

Current Univer targets Edge 88+, Firefox 90+, Chrome 88+, Safari 14.1+, and Electron 12+. Headless Univer supports Node.js 18.17+. Add an Intl.Segmenter polyfill when the target runtime does not provide it.

Themes and locales

Set the initial theme in createUniver. Current source also supports runtime theme changes through the Facade:

univerAPI.setTheme(defaultTheme);
univerAPI.toggleDarkMode(true);
univerAPI.setLocale(LocaleType.EN_US);

Use univer-customize-theme for branded palettes, dark mode, plugin CSS variables, six-product theme boundaries, and the installed-release gate for current theme methods.

Verify the installed FUniver declarations before emitting setTheme(), getCurrentTheme(), or isDarkMode(); the published npm package carrying the current source's prerelease version label can lag those methods. Initialization remains the portable theme-selection path.

Load every locale bundle owned by the presets or plugins you register. Do not cache translated strings yourself.

Core model

• univerAPI.createWorkbook(data) creates and returns an FWorkbook.
• univerAPI.getWorkbook(id) retrieves a specific workbook.
• workbook.getActiveSheet() and workbook.getSheetByName(name) return FWorksheet objects.
• worksheet.getRange('A1:B2') returns an FRange.
• workbook.save() returns the current IWorkbookData snapshot.
• univerAPI.disposeUnit(id) disposes one unit; univer.dispose() tears down the application.

Use createDocument only after registering the corresponding Docs preset/plugin. Do not represent Bases, Boards, PDFs, or the current Pro Slides product as workbooks; use their product-specific Facade creation methods documented by univer-pro-integrate.

Anti-patterns

• Do not mutate Workbook or Worksheet models directly. Use Facade methods or Commands so undo/redo and reactive updates remain consistent.
• Do not invent a Facade method from an older release. Check the installed package source or types; several 0.x method names changed in 1.0.0-beta.0.
• Do not copy manual plugin lists into new apps when an existing preset already owns the same composition.
• Do not omit the preset or plugin CSS in browser builds.
• Do not retain workbook, worksheet, or range handles after their unit or Univer instance is disposed.
• Do not create a separate Univer instance merely to add another workbook. Use multiple units unless the page genuinely needs independent editor containers.

Common operations

const workbook = univerAPI.getActiveWorkbook()!;
const worksheet = workbook.getActiveSheet()!;

worksheet.getRange('A1:D2').setValues([
  ['Product', 'Qty', 'Price', 'Total'],
  ['Apple', 2, 3, '=B2*C2'],
]);

worksheet.setColumnWidth(0, 140);
worksheet.setRowHeight(0, 32);
workbook.undo();
workbook.redo();

References

• references/facade-api-guide.md — current Facade hierarchy, method names, imports, and feature examples
• references/common-tasks.md — persistence, formatting, hyperlinks, events, CSV, themes, and large datasets
• references/plugin-registry.md — current OSS presets and manual plugins
• references/framework-integration.md — React, Vue 3, Web Component, iframe, and Node lifecycle patterns
• references/worker-setup.md — current browser and Node worker presets
• references/custom-functions.md — synchronous and asynchronous custom formula functions
• references/permissions.md — workbook, worksheet, and range permission Facades
• references/multi-unit-management.md — creating, retrieving, focusing, and disposing multiple units
• references/network-and-others.md — Network, Watermark, Action Recorder, and Telemetry boundaries

Templates

Copy the smallest matching template from assets/templates/:

• react-vite/
• vue3-vite/
• plain-html/
• node/