This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

Avif Express

Description

On upload, images like jpg, png and WebP gets converted to avif format. Converted images get served on web pages.

Feature list

  • Images get converted on upload.
  • Bulk convert previously uploaded images.
  • Bulk convert theme images.
  • Serve Webpage with altered avif images.
  • Fully CDN compatible.
  • Backward compatibility – Browsers that don’t support Avif images will get WebP images served on the fly.
  • Native Language Support for German, Spanish, Russian, French, Hindi and Bengali.

Official documentation of Avif Express

For a more detailed description of options and features of Avif Express, please read the official documentation.

Screenshots

  • Admin Page

Installation

  1. Download and Unzip the file.
  2. Upload the plugin into the wp-content/plugins/ directory of your WordPress site.
  3. Activate Avif Express from plugin page.

FAQ

How to generate avif images from previously uploaded images

Go to “Avif Express” on the left sidebar menu > On the “Avif express” page > Click on the generate button on “Upload directory” row.

How to generate avif images from theme’s image

Go to “Avif Express” on left sidebar menu > On the “Avif express” page > Click on the generate button on “Theme directory” row.

How to replace web-page’s images with avif images

Go to “Avif Express” on left sidebar menu > On the “Avif express” page > Select the mode from the dropdown on “Rendering” row.

Reviews

སྤྱི་ཟླ་གསུམ་པ། 30, 2024
The plugin did nothing. I got an ajax error: POST mysite.nl/wp-admin/admin-ajax.php 500 (Internal Server Error)
སྤྱི་ཟླ་བཅུ་པ། 23, 2023
Thank you very much for the plugin, this is exactly what I was looking for for so long
སྤྱི་ཟླ་ལྔ་པ། 10, 2023 1 reply
It converted the images well, but it breaks the images that are in SVG. If you can fix that, it’ll be perfect.
Read all 4 reviews

Contributors & Developers

“Avif Express” is open source software. The following people have contributed to this plugin.

Contributors

“Avif Express” has been translated into 1 locale. Thank you to the translators for their contributions.

Translate “Avif Express” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

28.06.2023

Feature:
1. Externally added webp images can be served via this plugin on browser that does not support avif image. note: Image fix name should be same as source.
Bugfix
1. If server is capable of generating webp and not avif, then this plugin will generate and serve webp images. In case server is not capable of generating webp and avif both, original image will get served in case no externally added webp image found.
2. Other small bug fixes.

02.05.11.2023

Bugfix: Image Magic class checking.

05.11.2023

Bugfix: Skipping SVG processing on rendering. Checking server capability to convert Avif even when rendering is off.

05.07.2023

Backward compatibility – Browsers that don’t support Avif images will get WebP images served on the fly.
Bugfix: Images that don’t belongs to the same domain no logger getting skipped.

03.20.2023

Added translation for German, Spanish, Russian, French, Hindi and Bengali, for backend Admin dash.

02.27.2023

Issue: Undefined Constatnt. Fixed. Pointed by [argument](https://wordpress.org/support/users/argument/,”Bug finder”).

02.26.2023

ImageMagick version checking. Version ‘7.0.25’ or above required.
Issue: Auto convert on upload was not working. Fixed : Typo in namespace.

02.25.2023

Issue: php 8.1 or 8.2 with GD with libavif support still creating 0 byte avif images. #Php_bug. Fixed with Imagick library.

02.23.2023

Issue: Migrated images with post type of attachment were not getting converted. Fixed.
Issue: php 8.1 or 8.2 with GD with libavif support still creating 0 byte avif images. Not fixed. #Php_bug

01.30.2023

Conflict with Autoptimize plugin fixed.

01.20.2023

Lowered the “Requires at least” wordpress version.
Updated Description on README.txt.
Code commenting.
Added php version checking, require at least 8.1, since imageavif() method only comes with php8.1 or later.
Added method checking for imageavif(), it prevent ajax error in case Php GD not having libavif. libavif is library required by GD to convert image to avif image.
Note: latest Plesk Obsidian(Version 18.0.49) with php 8.2 do not provide libavif to GD. No way around.

01.19.2023

Updated FAQ section on README.txt.
Added Additional file checking on frontend. If .avif file exist then only alter the image url.