by WPMU DEV - Your All-in-One WordPress Platform 4.8 (6,051 reviews)

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN

Name: Smush – Image Optimization, Compression, Lazy Load, WebP & CDN
Rating: 4.8 (6051 reviews)
Author: WPMU DEV - Your All-in-One WordPress Platform

Compress and optimize images, enable lazy load, serve WebP & AVIF, and speed up your site with a global image CDN.

Smush ranks #65 among WordPress.org plugins with 1,000,000+ active installations, is #3 of 6,299 in the Media category, a 4.8/5 rating from 6,051 reviews, and was last updated Aug 24, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1

v4.3.2 Current Version v4.3.2

Updated 3 weeks ago Last Update on 24 Aug, 2026

Refreshed 11 hours ago Last Refreshed on

#3 of 6,299 in Media Top 1% by installs Downloads -44.5% this week Actively maintained

View on WordPress.org

Rank

#65

— No change

Active Installs

1M+

-5.1%

KW Avg Position

3.2

0.2 better

Downloads

64.9M

+5,564 today

Support Resolved

50%

— No change

Rating

96%

Review 4.8 out of 5

4.8 (6,051 reviews)

Next Milestone 2M

Total Progress 7.7%

1M+ 2M+

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

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Need 923,077 more installs to reach 2M+

Rank Changes

Current #65

Change

Best #

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

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Reviews & Ratings

4.8

6,051 reviews

Overall 96%

5,464 (90%)

338 (6%)

53 (1%)

31 (1%)

165 (3%)

Support Threads Overview

Resolved

Unresolved

Total Threads

Resolved

Unresolved

50%

Resolution Rate

Security History

Source: WPVulnerability

11 known vulnerabilities on record · 3 in the last 24 months · checked 1 week ago

Aug 27, 2026

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN [wp-smushit] < 4.3.2

CVE-2026-19223 · Fixed in v4.3.2
Aug 27, 2026

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN [wp-smushit] < 4.3.0

CVE-2026-81285 · Fixed in v4.3.0
Mar 29, 2025

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN [wp-smushit] < 3.17.1

CVE-2025-22288 · Fixed in v3.17.1
Jun 20, 2024

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN [wp-smushit] < 3.16.5

CVE-2023-3352 · Fixed in v3.16.5
May 3, 2022

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN [wp-smushit] < 3.9.9

CVE-2022-1009 · Fixed in v3.9.9
Dec 10, 2018

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN [wp-smushit] < 3.0.0

Fixed in v3.0.0
Dec 10, 2018

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN [wp-smushit] < 3.0.0

Fixed in v3.0.0
Dec 10, 2018

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN [wp-smushit] < 3.0.1

Fixed in v3.0.1
Oct 9, 2017

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN [wp-smushit] < 2.7.6

Fixed in v2.7.6
Sep 21, 2017

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN [wp-smushit] < 2.7.6

CVE-2017-15079 · Fixed in v2.7.6

Showing the 10 most recent of 11 records.

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Plugin Details

Version: 4.3.2
Last Updated: Aug 24, 2026
Requires WP: 6.4+
Tested Up To: 7.1
PHP Version: 7.4 or higher
Author: WPMU DEV - Your All-in-One WordPress Platform

Support & Rating

Rating: ★ ★ ★ ★ ★ 4.8
Reviews: 6,051
Support Threads: 4
Resolved: 50%

Keywords

compress images convert webp image optimization image optimizer optimize images

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TL;DR

AI summary of the plugin's readme

This plugin is for WordPress site owners running blogs, stores, or portfolios who need faster page load times. It compresses and optimizes images, enables lazy loading, and serves modern image formats to reduce page weight and improve site performance.

Lossless and lossy image compression
Directory Smush for non-media-library images
Image lazy load
WebP and AVIF conversion (PRO)
Global image CDN (PRO)
Automatic image resizing and dimension fixes (PRO)
Bulk or individual image compression
Compatible with Gutenberg, Elementor, WPBakery, WooCommerce

Frequently Asked Questions

Common questions about Smush – Image Optimization, Compression, Lazy Load, WebP & CDN

Smush makes it easy to optimize images in WordPress automatically. Once installed, Smush will optimize images and compress images as you upload them. You can also bulk optimize images already on your site with one click.

Smush lets you compress images using both lossless and lossy compression. This means you can reduce file sizes and improve performance without noticeable quality loss.

Yes. Smush Pro includes a global image CDN. 119 global CDN servers Up to 500 GB of bandwidth Faster delivery based on visitor location This helps improve load times for users around the world.

This warning means images are larger than the space they are displayed in. Smush includes automatic image resizing, which dynamically resizes images to fit their containers. This helps eliminate the “Properly size images” warning without manual work.

Smush can automatically add missing width and height attributes to your images. This improves rendering speed, reduces layout shifts, and helps you pass Core Web Vitals checks like CLS.

Yes. Smush can convert images to WebP and AVIF formats to reduce file size and improve performance. These next-gen formats help you optimize images and meet modern PageSpeed recommendations.

This means your images are not using WebP or AVIF. Smush helps you convert images to these formats so they load faster and improve your PageSpeed score.

No. Smush does not delete your original images. It compresses and optimizes resized versions by default. Full-size image compression is available in Smush Pro.

In the free version, images over 5MB are skipped. Smush Pro supports compressing images up to 256MB.

No. Smush automatically optimizes images across your entire site, including images added by plugins and themes.