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Best WordPress Plugins for Optimising Images with Speed

15 plugins compared · Updated September 2026 · Image Optimisation

Choosing a WordPress plugin for optimising images comes down to a few things: whether it is still actively maintained, whether real users rate it well, and whether it does the specific job you need without dragging the rest of the site down.

We ranked 15 plugins using our WPScore, which weighs the user rating (adjusted for how many people actually rated it), how many sites run it, how recently it was updated, and which WordPress version it is tested against. 15 of them have enough public data to be scored; the rest are listed below the ranked block, clearly marked, rather than being given a number we cannot justify.

How this list is funded. Some links here earn us a commission if you buy. It costs you nothing extra, and it does not move anything up the list — the order comes from the WPScore, which is calculated from public ratings, install counts and update history. See the method.

At a glance

  1. 1. Optimole Best overall 89/100
  2. 2. Hummingbird Performance 88/100
  3. 3. TinyPNG 87/100
  4. 4. Robin Image Optimizer 86/100
  5. 5. NitroPack 86/100
  6. 6. LWS Optimize 85/100
  7. 7. ShortPixel Adaptive Images 85/100
  8. 8. WP Compress 83/100
  9. 9. FastPixel Cache 83/100
  10. 10. WPSpeed 83/100
  11. 11. 10Web Booster 81/100
  12. 12. Flying Images: Optimize and Lazy Load Images for Faster Page... 81/100
  13. 13. Cache Enabler 80/100
  14. 14. ThumbPress 79/100
  15. 15. Smart LazyLoad 78/100
1 Optimole
Best overall Free by Optimole

Optimole

Automatically optimize images with bulk compression, lazy loading, WebP/AVIF conversion & CloudFront image CDN. Boost Core Web Vitals & conversions.

4.7★
from 638 ratings
200k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
89

WPScore

Read review View on WordPress.org
2 Hummingbird Performance
Free by WPMU DEV - Your All-in-One WordPress Platform

Hummingbird Performance

Optimize PageSpeed Performance & Core Web Vitals, Advanced Cache, Minify CSS & JavaScript, Inline Critical CSS, Defer CSS & JS, Smush & Lazy Load, CDN

4.7★
from 1,487 ratings
70k+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
88

WPScore

Read review View on WordPress.org
3 TinyPNG
Free by TinyPNG

TinyPNG

Speed up your website. Optimize your JPEG, PNG, and WebP images automatically with TinyPNG.

4.5★
from 176 ratings
100k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
87

WPScore

Read review View on WordPress.org
4 Robin Image Optimizer
Free by Themeisle

Robin Image Optimizer

Unlimited automatic image optimization for WordPress. Compress images, convert to WebP, and improve site speed without losing image quality.

4.4★
from 129 ratings
100k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
86

WPScore

Read review View on WordPress.org
5 NitroPack
Free by NitroPack

NitroPack

Boost site speed and performance with an all-in-one cache and speed optimization plugin. Pass Core Web Vitals with CDN, image optimization, lazy loadi …

4.3★
from 311 ratings
90k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
86

WPScore

Read review View on WordPress.org
6 LWS Optimize
Free by Aurélien LWS

LWS Optimize

All-in-one speed optimization: caching, WebP/AVIF, Critical CSS, lazy loading, CDN, and more. Instantly boost Core Web Vitals and site speed!

4.6★
from 9 ratings
20k+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
85

WPScore

Read review View on WordPress.org
7 ShortPixel Adaptive Images
Free by ShortPixel

ShortPixel Adaptive Images

Start serving properly sized, smart cropped & optimized images, plus CSS, JS and fonts from our CDN with a click; Automatic AVIF & WebP support.

4.8★
from 144 ratings
10k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
85

WPScore

Read review View on WordPress.org
8 WP Compress
Free by AresIT

WP Compress

Everything you need for a faster website – smart optimization, advanced caching, adaptive images, WebP creation, script improvements, optional CDN del …

4.5★
from 155 ratings
10k+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
83

WPScore

Read review View on WordPress.org
9 FastPixel Cache
Free by ShortPixel

FastPixel Cache

Optimize Core Web Vitals and PageSpeed with advanced caching, image compression, lazy loading, critical CSS, and CDN – the ultimate performance tool.

4.8★
from 49 ratings
4k+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
83

WPScore

Read review View on WordPress.org
10 WPSpeed
Free by JExtensions Store

WPSpeed

WordPress speed optimization plugin to boost PageSpeed, improve Core Web Vitals, reduce TTFB and enable static HTML caching for 100/100 performance.

4.9★
from 39 ratings
2k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
83

WPScore

Read review View on WordPress.org
11 10Web Booster
Free by 10Web

10Web Booster

Speed up your site with 10Web Booster. Pass Core Web Vitals by optimizing HTML / CSS / JavaScript, Image Optimization, Lazy Loading, Cache, Google Fon …

4.6★
from 405 ratings
70k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
81

WPScore

Read review View on WordPress.org
13 Cache Enabler
Free by KeyCDN

Cache Enabler

A lightweight caching plugin for WordPress that makes your website faster by generating static HTML files.

4.3★
from 139 ratings
100k+
active installs
Updated
Mar 2026
Tested to
WP 6.9.7
80

WPScore

Read review View on WordPress.org
14 ThumbPress
Free by Codexpert, Inc

ThumbPress

The all-in-one WordPress image optimization plugin. Disable thumbnails, compress images, convert to WebP & AVIF, clean your media library, and more.

3.6★
from 110 ratings
20k+
active installs
Updated
Aug 2026
Tested to
WP 7.0.4
79

WPScore

Read review View on WordPress.org
15 Smart LazyLoad
Free by Jumedeen khan

Smart LazyLoad

Speed up your WordPress website with the lightweight Vanilla Lazy Load JS for images, videos, and iframes to improve performance and Core Web Vitals.

5★
from 5 ratings
300+
active installs
Updated
Aug 2026
Tested to
WP 7.1
78

WPScore

Read review View on WordPress.org