---
title: "Image Optimization for TYPO3"
manual: "Image Optimization for TYPO3"
version: "2.6"
permalink: "https://docs.typo3.org/permalink/netresearch/nr-image-optimize:start@2.6"
source: "Index.rst"
start: true
rendered: "2026-09-25T11:13:49+00:00"
---

# Image Optimization for TYPO3 {#start}

-   *Extension key:* nr_image_optimize
-   *Package name:* netresearch/nr-image-optimize
-   *Version:* release
-   *Language:* en

---

The [`netresearch/nr-image-optimize`](https://packagist.org/packages/netresearch/nr-image-optimize) extension provides
on-demand image optimization for TYPO3. Page rendering only emits
image URLs; each variant is processed by a middleware when a browser
first requests it -- so a cold page cache no longer waits for image
processing (see [Performance model](https://docs.typo3.org/permalink/netresearch/nr-image-optimize:introduction-performance@2.6)) -- with support for
modern formats (WebP, AVIF), responsive `srcset` generation, and
automatic format negotiation.

**Introduction**

Learn what the extension does, its features, and
system requirements.

[Read more](https://docs.typo3.org/permalink/netresearch/nr-image-optimize:introduction@2.6)

**Installation**

Install via Composer or the Extension Manager.

[Read more](https://docs.typo3.org/permalink/netresearch/nr-image-optimize:installation@2.6)

**Configuration**

Configure the SourceSetViewHelper, render modes,
responsive srcset, and lazy loading.

[Read more](https://docs.typo3.org/permalink/netresearch/nr-image-optimize:configuration@2.6)

**Usage**

Integrate responsive images into your Fluid
templates with practical examples.

[Read more](https://docs.typo3.org/permalink/netresearch/nr-image-optimize:usage@2.6)

**Maintenance**

Manage processed images and check system
requirements in the backend module.

[Read more](https://docs.typo3.org/permalink/netresearch/nr-image-optimize:maintenance@2.6)

**Developer reference**

Architecture overview and PHP API reference.

[Read more](https://docs.typo3.org/permalink/netresearch/nr-image-optimize:developer@2.6)