David Degner

<p>AVIF Local Support adds modern AVIF image support to WordPress while keeping compatibility with existing JPEG media.  Built by a <a href="https://www.daviddegner.com" rel="nofollow ugc">Boston photographer</a> who needs it for their own portfolio website.</p>
<p><strong>GitHub Repository:</strong> <a href="https://github.com/ddegner/avif-local-support" rel="nofollow ugc">https://github.com/ddegner/avif-local-support</a></p>
<ul>
<li>Local-first: all processing happens on your own server — no external calls.  Works well for me on a shared CPU with 2GB of RAM on Linode.</li>
<li>Image quality first: uses Imagick PHP and CLI when available for high-quality resizing (LANCZOS), corrects EXIF orientation, and preserves ICC color profiles and EXIF/XMP/IPTC metadata when possible.</li>
<li>Tunable quality and speed: set AVIF quality (0–100) and encoder speed (0–10) to balance fidelity and performance.  You can even adjust choose chroma subsampling (4:2:0, 4:2:2, 4:4:4) and bit depth (8/10/12-bit). Defaults: 4:2:0 and 8-bit if your server supports it and you want higher quality images.</li>
<li>Wraps existing <code><img></code> tags in <code><picture></code> with an AVIF <code><source></code> when an <code>.avif</code> version is present.</li>
<li>Converts JPEG originals and generated sizes to AVIF on upload, or via a daily/background scan.</li>
<li>Preserves EXIF/XMP/IPTC metadata and ICC color profiles by default (when using ImageMagick/Imagick).</li>
<li>WordPress-aware resizing logic enabled by default to avoid double-resizing when generating AVIF sizes from originals.
<ul>
<li>Tools include: convert missing AVIFs, upload a test JPEG, and delete all AVIF files in uploads.</li>
</ul>
</li>
</ul>
<h4>How it works</h4>
<ul>
<li>Front end: Filters common image outputs to add an AVIF <code><source></code> ahead of the original JPEG. Browsers that support AVIF will use it; others fall back to JPEG.</li>
<li>Conversion: Uses Imagick when available (preferred) — with auto-orientation and LANCZOS resizing — or GD with an AVIF encoder. Quality, speed, chroma subsampling, and bit depth are configurable (subsampling/bit depth applied via Imagick when supported).</li>
<li>Scheduling: Optional daily scan to backfill missing <code>.avif</code> files for existing JPEGs.</li>
</ul>
<h4>Requirements</h4>
<ul>
<li>PHP 8.0 or later (8.1+ recommended)</li>
<li>WordPress 6.5 or later</li>
<li>Imagick PHP extension recommended for best quality and metadata/ICC preservation. GD fallback supported.</li>
</ul>
<h3>Ubuntu/Debian setup (summary)</h3>
<p>For local JPEG<span aria-hidden="true" class="wp-exclude-emoji">→</span>AVIF conversion you need either Imagick with AVIF-enabled ImageMagick, or GD with AVIF support:</p>
<ul>
<li>
<p>Imagick path (recommended)</p>
<ul>
<li>PHP extension: imagick</li>
<li>System libraries: ImageMagick built with HEIF/AVIF support (via libheif)</li>
<li>Notes: This path enables higher-quality resizing and preserves metadata/ICC profiles</li>
</ul>
</li>
<li>
<p>GD path (fallback)</p>
<ul>
<li>PHP extension: gd built with AVIF support (provides <code>imageavif</code> on PHP 8.1+)</li>
<li>Notes: Ensure your distro’s PHP GD is compiled with AVIF; some builds omit it</li>
</ul>
</li>
<li>
<p>Helpful extras</p>
<ul>
<li>PHP exif extension (for orientation handling in the GD fallback)</li>
<li>Web server configured to serve <code>.avif</code> as <code>image/avif</code> (Apache/Nginx/LiteSpeed)</li>
</ul>
</li>
</ul>
<p>Official documentation:<br />
– PHP Imagick installation: https://www.php.net/imagick<br />
– PHP GD installation (AVIF details): https://www.php.net/manual/en/image.installation.php<br />
– ImageMagick format support (AVIF/HEIF): https://imagemagick.org/script/formats.php<br />
– Apache MIME configuration: https://httpd.apache.org/docs/current/mod/mod_mime.html<br />
– Nginx MIME configuration: https://nginx.org/en/docs/http/ngx_http_types_module.html</p>


AVIF Local Support

AVIF support for converting and serving high quality photos. Built by a photographer, not trying to sell subscriptions.

CompressX

<p>CompressX is a free, lightweight and simple Webp & AVIF conversion and compression plugin for WordPress websites. It helps you to easily convert JPG and PNG images to WebP and AVIF formats, and compress WebP and AVIF images. The AVIF and WebP conversion is performed locally on the web server.</p>
<h3>Core Features</h3>
<h4>1. Convert AVIF & Compress AVIF</h4>
<p>Convert jpg, png, and WebP images on your WordPress website to AVIF format, and compress AVIF images according to the compression level you set.<br />
If the original image is already in AVIF format which is supported since WordPress 6.5, the original AVIF image will only be compressed.</p>
<h4>2. Convert WebP & Compress WebP</h4>
<p>Convert jpg, png images on your WordPress website to WebP format, and compress WebP images according to the compression level you set.<br />
If the original image is already in WebP format which is supported since WordPress 5.8, the original WebP image will only be compressed.</p>
<h4>3. Exclude Folders</h4>
<p>Select specific folders in your media library and prevent images inside them from being processed.</p>
<h4>4. Custom Folders</h4>
<p>Select folders that are in the wp-content folder but outside the Uploads (media library) and process images inside them.</p>
<h4>5. Auto-Process New Images</h4>
<p>Automatically convert new images uploaded to a WordPress website to WebP/AVIF format and compress WebP/AVIF images upon upload.</p>
<h4>6. Auto-Remove Large Images</h4>
<p>Automatically remove converted AVIF/WebP images when they are larger than original images.</p>
<h4>7. Restore Original Images</h4>
<p>Your images will be reverted to their original state and all AVIF/WebP images and data in the database generated by CompressX will be removed when CompressX is uninstalled.</p>
<h3>Minimum Requirements to use CompressX</h3>
<ul>
<li>Character Encoding UTF-8</li>
<li>PHP version 7.0</li>
<li>MySQL version 4.1</li>
<li>WordPress 5.8</li>
</ul>


AVIF & WebP Converter


It's all new, but I believe this can go far ! I was looking for a plugin with free AVIF conversion, and locally hosted (a lot of images plugins use their servers to compress, that's why a lot of them are expensive).Awesome support, totally free (for now ?), does the same thing as the famous Media Converter, but with free AVIF. Take my 5/5 rating ;)EDIT : Oh no wait, it does more than media converter, allowing you to set a max width / height on your images :fire:


This may be my future goto plugin for image optimisation


Deserves 5-stars just for vision and generosity in making this exist!



Will give it a thorough test and post any feedback as we go.



Thank you 🙏


The world thanks you!


I usually don't review plugins but this one is just magnificent! Amazing developers!


Amazing plugin


یکی از بهترین افزونه‌هایی که برای تبدیل و بهینه سازی تصاویر میتونید استفاده کنید قطعا این افزونه هست. این افزونه با امکانات متنوع و مناسب، سرعت بالا و دقت و کیفیت عالی باعث شده در سایت وردپرس ایرانی هم به عنوان یکی از بهترین افزونه‌های تبدیل فرمت شناخته بشه. به نظرم هرچی افزونه دارید دور بریزید و این افزونه شگفت انگیز رو نصب کنید. جزئیات و راهنمایی نصب و انجام تنظیمات مناسب برای این افزونه رو میتونید در مقاله‌ای که "وردپرس ایرانی" منتشر کرده مشاهده کنید


بهترین افزونه تبدیل تصاویر | تشکر از سازنده

Local image optimizer. AVIF & WebP converter.

AVIF Local Support vs AVIF & WebP Converter