Description
DVMAGIC Local Image Conversion for AVIF and WebP converts JPEG, PNG and GIF uploads to modern formats on your own server — and can batch-convert your existing Media Library.
Built by Auslander Studio for production WordPress sites we operate ourselves. Unlike SaaS optimizers, everything runs locally with no usage caps — full feature set, free.
What makes this plugin different
- No external API — images never leave your server
- No subscription or quota — batch the whole Media Library when you need to
- AVIF-first with WebP fallback when the host cannot encode AVIF
- Optional keep originals for rollback without a second plugin
- Server capability panel so you know what the host can encode before you batch
- URL rewrite in post content and meta after conversion
Features
- Convert on upload (optional)
- Batch convert legacy library images
- AVIF primary with automatic WebP fallback when the host lacks AVIF encode
- Optional Keep originals (off by default)
- Server capability panel (Imagick, GD, AVIF/WebP)
- URL rewrite in post content and meta after conversion
- Action Scheduler queue when available; WP-Cron fallback
Requirements
- AVIF encoding: PHP extension imagick (PECL imagick) with ImageMagick built for AVIF output (AVIF in
Imagick::queryFormats('AVIF')). GD cannot encode AVIF in this plugin. - WebP encoding: imagick with WebP support, or PHP extension gd with WebP enabled (
imagewebpavailable). - Sufficient disk space and CPU for batch jobs
- Back up
wp-content/uploads/before running a full library batch
Check Media DVMAGIC Image Conversion Server capabilities after install — the panel shows Imagick, Imagick WebP, Imagick AVIF, and GD WebP on your host.
PHP extensions (summary)
- AVIF output — PHP extension
imagick(PECL). ImageMagick on the server must support AVIF encode (host-dependent; often ImageMagick 7 + libavif). Check “Imagick AVIF” in the plugin’s Server capabilities panel. - WebP output —
imagickwith WebP support, or PHP extensiongdwith WebP enabled (imagewebp). - Reading JPEG/PNG/GIF —
imagickand/orgd(typical on most hosts).
If only GD with WebP is available, set Primary format to WebP, or leave AVIF and the plugin will fall back to WebP when AVIF encode is not detected.
Author
DVMAGIC — LinkedIn
Screenshots
Installation
- Upload the plugin folder to
/wp-content/plugins/or install from WordPress.org. - Activate DVMAGIC Local Image Conversion for AVIF and WebP.
- Open Media DVMAGIC Image Conversion.
- Review server capabilities, save settings, then run a small test upload before batching the whole library.
FAQ-e
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Does this call an external API?
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No. All encoding happens on your server.
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Will AVIF work on every host?
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No. AVIF encoding requires the PHP
imagickextension and an ImageMagick build that can write AVIF (see Server capabilities: “Imagick AVIF”). Many shared hosts have Imagick without AVIF, or only GD with WebP.When AVIF encode is unavailable, the plugin falls back to WebP (via Imagick or GD).
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Which PHP extensions do I need?
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- AVIF: enable
imagickin PHP and ensure ImageMagick on the server supports AVIF output (ask your host or check the plugin’s capability panel). - WebP:
imagick(WebP) orgdwith WebP (imagewebp). - You do not need both imagick and gd — one working WebP path is enough if you use WebP as primary or accept AVIFWebP fallback.
- AVIF: enable
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Can I keep JPEG/PNG files after conversion?
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Yes. Enable Keep originals in settings. WordPress still serves the modern attachment file.
Reviews
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Contributors & Developers
“DVMAGIC Local Image Conversion for AVIF and WebP” is open source software. The following people have contributed to this plugin.
Contributors
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Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
1.0.2
- Renamed plugin for WordPress.org guidelines (distinctive DVMAGIC branding)
- Unified
dvmlic_prefixes for options, AJAX, hooks, and classes - Admin batch UI JavaScript moved to enqueued
assets/admin.js - Migrates legacy
smo_*settings on activation when present - Readme: explicit PHP extension requirements for AVIF (imagick) and WebP (imagick or gd)
1.0.1
- Plugin Check: WP_Filesystem / wp_delete_file for file ops
- Prefixed filters and settings helper
- Tested up to WordPress 7.1
1.0.0
- Initial WordPress.org release
- Upload + batch conversion, keep originals, server status panel