---
title: Optimize images
description: Reduce page load times by compressing, resizing, and converting images to WebP and AVIF automatically.
image: https://developers.cloudflare.com/cf-twitter-card.png
---

[Skip to content](#%5Ftop) 

Was this helpful?

YesNo

[ Edit page ](https://github.com/cloudflare/cloudflare-docs/edit/production/src/content/docs/use-cases/performance/image-optimization.mdx) [ Report issue ](https://github.com/cloudflare/cloudflare-docs/issues/new/choose) 

Copy page

# Optimize images

Images are often the largest assets on a page and the biggest contributor to slow load times. Cloudflare Images resizes and converts images on-the-fly to modern formats like WebP and AVIF, while Polish compresses existing images without visible quality loss.

## Solutions

### Images

Transform, optimize, and deliver images at scale. [Learn more about Images](https://developers.cloudflare.com/images/).

* **Modern formats** \- Automatically serve WebP or AV1 Image File Format (AVIF) to supported browsers, falling back gracefully for others
* **Responsive images** \- Resize and transform images on-the-fly via URL parameters without pre-generating variants

### Polish

Automatic image compression without quality loss. [Learn more about Polish](https://developers.cloudflare.com/images/polish/).

* **Automatic compression** \- Reduce image file sizes through lossless or lossy compression without visible quality loss

### Speed

Improve page load performance with built-in optimizations. [Learn more about Speed](https://developers.cloudflare.com/speed/).

* **Lazy loading** \- Defer loading of off-screen images to improve initial page load and Core Web Vitals

## Get started

1. [Images get started](https://developers.cloudflare.com/images/get-started/)
2. [Enable Polish](https://developers.cloudflare.com/images/polish/)

```json
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/use-cases/","name":"Use cases"}},{"@type":"ListItem","position":3,"item":{"@id":"/use-cases/performance/","name":"Performance"}},{"@type":"ListItem","position":4,"item":{"@id":"/use-cases/performance/image-optimization/","name":"Optimize images"}}]}
```