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Best WordPress Plugins for Optimising Images

15 plugins compared · Updated August 2026 · Image Optimisation

All Free only 15 Premium only

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. EWWW Image Optimizer Best overall 94/100
  2. 2. Smush 93/100
  3. 3. Converter for Media 93/100
  4. 4. Admin and Site Enhancements 92/100
  5. 5. Imagify Image Optimization: Optimize Images 89/100
  6. 6. ShortPixel Image Optimizer 89/100
  7. 7. Optimole 89/100
  8. 8. CompressX 89/100
  9. 9. Hummingbird Performance 88/100
  10. 10. Perfect Images: Regenerate Thumbnails, Image Sizes, WebP & A... 88/100
  11. 11. WebP Express 87/100
  12. 12. TinyPNG 87/100
  13. 13. AJAX Thumbnail Rebuild 87/100
  14. 14. reSmush.it 86/100
  15. 15. Robin Image Optimizer 86/100
1 EWWW Image Optimizer
Best overall Free by Shane Bishop

EWWW Image Optimizer

Comprehensive image optimization with WebP, AVIF, Lazy Load, and more. Optimize images automatically for Faster Sites and Happy Visitors.

4.8★
from 1,838 ratings
1M+
active installs
Updated
Aug 2026
Tested to
WP 7.1
94

WPScore

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

Smush

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

4.8★
from 6,051 ratings
1M+
active installs
Updated
Aug 2026
Tested to
WP 7.1
93

WPScore

Read review View on WordPress.org
3 Converter for Media
Free by Mateusz Gbiorczyk

Converter for Media

Speed up your website by using our WebP & AVIF Converter. Optimize images and serve WebP and AVIF images instead of standard formats!

4.9★
from 1,097 ratings
500k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
93

WPScore

Read review View on WordPress.org
4 Admin and Site Enhancements
Free by Bowo

Admin and Site Enhancements

Duplicate post, post order, image resize, email via SMTP, admin menu editor, custom css / code, disable gutenberg and much more in a single plugin.

5★
from 421 ratings
200k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
92

WPScore

Read review View on WordPress.org
7 Optimole
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
8 CompressX
Free by CompressX

CompressX

AVIF & WebP converter with built-in media replacement for local image optimization.

5★
from 191 ratings
40k+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
89

WPScore

Read review View on WordPress.org
9 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
11 WebP Express
Free by rosell.dk

WebP Express

Serve autogenerated WebP images instead of jpeg/png to browsers that supports WebP.

4.4★
from 161 ratings
300k+
active installs
Updated
Jun 2026
Tested to
WP 6.9.7
87

WPScore

Read review View on WordPress.org
12 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
13 AJAX Thumbnail Rebuild
Free by junkcoder

AJAX Thumbnail Rebuild

Rebuild your media library one image at a time, without script timeouts - and optimise, replace, or write WebP and AVIF copies of your images.

4.8★
from 90 ratings
30k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
87

WPScore

Read review View on WordPress.org
14 reSmush.it
Free by ShortPixel

reSmush.it

reSmush.it is the FREE image compressor and optimizer plugin - use it to optimize your images and improve the SEO and performance of your website.

4.3★
from 165 ratings
100k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
86

WPScore

Read review View on WordPress.org
15 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