PluginScout

Plus WebP — WordPress Image Optimization Plugin

Plus WebP or AVIF

by Katsushi Kawamori · WordPress.org page · Website

v5.21 Tested up to WP 7.1 PHP 8.1+

Plus WebP has 5,000+ active installs on WordPress.org and 78,269 downloads all time. We have tracked it since September 4, 2026; download trends appear after 30 days of data. The last update was on August 25, 2026, tested up to WordPress 7.1.

Plus WebP at a glance

Active installs
5,000+
Total downloads
78,269
Downloads, last 30 days
–
available after 30 days of tracking
30-day growth
–
tracking since September 4, 2026

Is Plus WebP well maintained?

Support threads resolved
0 of 3
recent threads on the WordPress.org support forum
WordPress compatibility
Current
tested up to WordPress 7.1, the current release is 7.1
One-star reviews
8%
2 of 26 reviews on WordPress.org

Features

The feature list from the plugin's own readme on WordPress.org, trimmed to the essentials.

  • Generate WebP or AVIF file when adding image file in Media Library
  • Generate WebP or AVIF from all the images by async/await
  • Optionally, Can replace image files with WebP or AVIF when adding new media, and delete the original image file. Also, when generating all images, the original…

Plus WebP reviews and ratings

26 reviews on WordPress.org, with the most recent ones as their authors posted them.

All reviews
4.6 out of 5

26 reviews

5★
23
4★
0
3★
0
2★
1
1★
2

  • Excellent piece of work!

    It's a refreshingly easy to handle plugin and it works perfectly well. It does what it needs to!

    yondermann

  • Хороший выбор

    Отличный плагин. Делает свою работу на все 100%

    Делай Сайт

  • Renaming the email sender name

    After updating to version 4.09, I had to turn off the plugin, as it began to change the sender name for all letters coming from my site to mail using the following template "[ Site name ] WebP generate for Plus WebP". After deactivating the plugin, the problem was resolved. Your plugin is very good! I gave it 2 stars just to get your attention.

    robinnon

  • Great plugin

    This is great plugin to save my server space! Dear developer, I prefer to donate by paypal, usdt or stripe instead of inputting my credit card elsewhere.

    myeasymaster

  • Works but can kill traffic

    The plugin works, converts images to webp but also uses the apache PHP LoadFromFile that loads the images from file rather make http request, which means it will change the canonical of the images. Which means your articles and website will disappear from Google search, which will kill the traffic and the website finally. This happened to my website till I traced the solution down to this plugin. You'll post and it just won't show on Google search even though all is green on GSC because of this plugin. If you notice your website traffic is dying or your website doesn't show on Google, try removing this plugin and check your keywords acquisition on ahrefs.

    spreaditunlimited

  • 非常棒的插件

    非常棒的插件，而且免费。五星好评

    俊

Where Plus WebP ranks on WordPress.org

The rankings we track that Plus WebP appears in, and how its position changed over 30 days.

Ranking WordPress.org placement Position 30 days
Best Image Optimization Plugins #30 by tag, not in search #59 –

Plus WebP alternatives

Plugins that solve the same problem, ranked by how closely they overlap with Plus WebP.

All Plus WebP alternatives

Details

Generate WebP or AVIF.

The full description, screenshots and every review live on the WordPress.org page.

Rankings Plus WebP competes in

Tags

  • AVIF
  • media
  • upload
  • webp

More from Katsushi Kawamori

Version
5.21
Last updated
Aug 25, 2026
First published
May 14, 2019
Requires WordPress
6.6
Tested up to
7.1
Requires PHP
8.1
Pricing
Free on WordPress.org

Plus WebP FAQ

What does Plus WebP do?

According to its WordPress.org readme, Plus WebP offers Generate WebP or AVIF file when adding image file in Media Library, Generate WebP or AVIF from all the images by async/await and Optionally, Can replace image files with WebP or AVIF when adding new media, and delete the original image file. Also, when generating all images, the original.

How many active installs does Plus WebP have?

WordPress.org reports 5,000+ active installs for Plus WebP as of September 7, 2026.

Is Plus WebP still maintained?

Yes. The last release was on August 25, 2026 and it is tested up to WordPress 7.1.

Does Plus WebP have good support?

On the WordPress.org forum, 0 of 3 recent support threads for Plus WebP are marked resolved. That is the developer's free support; a paid version usually comes with its own channel.

Is Plus WebP free?

Plus WebP is free to install from WordPress.org. Many plugins also sell a paid version or add-ons.

Where does Plus WebP rank among Image Optimization Plugins?

Plus WebP is #59 in the WordPress.org Image Optimization Plugins ranking.