Vaadin Split Panel

web-components, web-component, polymer, Vaadin, split-panel, polymer-element, polymer2, split-layout, webcomponents
bower install vaadin-split-panel



Live Demo | API documentation

<vaadin-split-layout> is a Web Component implementing a split layout for two content elements with a draggable splitter between them, part of the Vaadin components.

npm version Published on Build status Gitter Published on Vaadin  Directory Stars on

⚠️ This is a pre-release version built with LitElement, part of the next generation of Vaadin web components.

Looking for Vaadin 14 compatible version? Please see the following branches:

  <vaadin-split-layout orientation="vertical">
    <div>First layout content</div>
    <div>Second layout content</div>
  <vaadin-split-layout orientation="vertical">
    <div>Third layout content</div>
    <div>Fourth layout content</div>

Screenshot of vaadin-split-layout


Install vaadin-split-layout:

npm i @vaadin/vaadin-split-layout --save

Once installed, import it in your application:

import '@vaadin/vaadin-split-layout/vaadin-split-layout.js';

Getting started

Vaadin components use the Lumo theme by default.

To use the Material theme, import the correspondent file from the theme/material folder.

Entry points

  • The component with the Lumo theme:


  • The component with the Material theme:


  • Alias for theme/lumo/vaadin-split-layout.js:


Running demos and API docs in a browser

  1. Fork the vaadin-split-layout repository and clone it locally.

  2. Make sure you have npm installed.

  3. When in the vaadin-split-layout directory, run npm install to install dependencies.

  4. Run npm start, browser will automatically open the component API documentation.

Running tests from the command line

  • When in the vaadin-split-layout directory, run npm test

  • To debug tests in the browser, run npm run test:debug

Following the coding style

We are using ESLint for linting TypeScript code. You can check if your code is following our standards by running npm run lint, which will automatically lint all .ts files.

Big Thanks

Cross-browser Testing Platform and Open Source <3 Provided by Sauce Labs.


To contribute to the component, please read the guideline first.


Apache License 2.0

Vaadin collects development time usage statistics to improve this product. For details and to opt-out, see