---
title: "Introduction"
manual: "Headless"
version: "main"
permalink: "https://docs.typo3.org/permalink/friendsoftypo3/headless:introduction@main"
source: "Introduction/Index.rst"
rendered: "2026-10-14T09:29:03+00:00"
---

# Introduction {#introduction}

EXT:headless renders TYPO3 pages and content as JSON. The response shape is
plain TypoScript — field names, types and nesting are customised with tools
TYPO3 integrators already know. Any frontend that speaks JSON can consume it;
[nuxt-typo3](https://github.com/TYPO3-Headless/nuxt-typo3) is the
reference implementation.

## What you get {#what-it-does}

-   JSON API for pages, content elements, menus, metadata — with full
    language/fallback handling
-   Per-site modes: full JSON, mixed (JSON only for
    `Accept: application/json`), off
-   Extensible via TypoScript: custom fields, custom content elements
-   Installed core extensions integrate automatically: `EXT:form`,
    `EXT:felogin`, `EXT:redirects` (JSON envelopes), `EXT:seo`
    (meta tags, XML sitemap); workspace preview works out of the box
-   Community add-ons: [news](https://github.com/TYPO3-Initiatives/headless_news),
    [solr](https://github.com/TYPO3-Initiatives/headless_solr),
    [powermail](https://github.com/TYPO3-Initiatives/headless_powermail),
    [gridelements](https://github.com/itplusx/headless_gridelements),
    [container](https://github.com/itplusx/headless-container)

## Version support {#version-support}

| headless | TYPO3 | PHP | Status |
| --- | --- | --- | --- |
| 5.x | 14 | >= 8.2 | Active development |
| 4.x | 12.4 – 13 | >= 8.2 | Bug & security fixes |
| 3.x | 11.5 | — | End of life |

Upgrading? See [UPGRADE.md](https://github.com/TYPO3-Headless/headless/blob/main/UPGRADE.md).