# ────── /extensions ──────

Liferay Client Extension reference

All 28 types Liferay supports, grouped into the four Client Extension families. Open a family to drill into its sub-types.

⚛Frontend

13 types

UI & theming

Extensions that render on Liferay pages or modify page appearance — custom elements, themes, global CSS/JS, fragments, audience attribute contributors.

Custom Element
IFrame
Global CSS
+10 more

Register OAuth applications, override Configuration Admin settings, and declare object metadata that Liferay reads at deploy time.

OAuth Application (Headless Server)
OAuth Application (User Agent)
Instance Settings

Externalize business logic — object actions, workflow actions, notifications, validation, checkout / shipping / tax / payment integrations, CAPTCHA verification.

Object Action
Object Validation Rule
Object Entry Manager
+7 more

open →

⇉Batch & Provisioning

2 types

Data on deploy

Bulk data import via Batch Engine, and full site scaffolding (layouts, fragments, taxonomies, roles) via Site Initializer on first deploy.

Batch
Site Initializer

open →

Direct links: /extensions/frontend · /extensions/configuration · /extensions/microservice · /extensions/provisioning

cd ..