Lightning Web Components
UI framework for building custom elements (web components) with HTML, JavaScript and CSS, maintained by Salesforce.
Lightning Web Components is a UI framework for building custom elements, the web components standard, with HTML and JavaScript. Salesforce maintains it. The framework’s core package is lwc on npm, and the homepage says to create an app with the lwr tool, using npm init lwr.
The framework uses core Web Components standards and runs natively in browsers, so the components it produces are standard custom elements.
Identity
Rendering and deploy
- Runs as
- In the browser3
- Rendering
- On a server, In the browser18
- Install with
- npm17
Releases
Adoption
Sources
- 2026-10-27: links, Install with, Rendering, License
lwc.dev/ - 2026-10-27: links, Written in, GitHub stars
api.github.com/repos/salesforce/lwc - 2026-10-27: links, Categories, Runs as
lwc.dev/guide/introduction - 2026-10-27: First release, License, License model
registry.npmjs.org/lwc - 2026-10-27: Maintainer
raw.githubusercontent.com/salesforce/lwc/master/LICENSE.md - 2026-10-27: Headquarters
www.salesforce.com/company/legal/privacy/ - 2026-10-27: Install with
lwc.dev/guide/install - 2026-10-27: Rendering
lwc.dev/guide/ssr - 2026-10-27: Current major version, Last release
api.github.com/repos/salesforce/lwc/releases/latest - 2026-10-27: Contributors
api.github.com/repos/salesforce/lwc/contributors - 2026-10-28: npm downloads a week
api.npmjs.org/downloads/range/2026-09-28:2026-10-04/lwc - 2026-10-27: Dependent packages, Dependent repositories
packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/lwc