Title: DZIEWA Media Converter — AVIF + WebP
Author: Rafał Dziewa
Published: <strong>2026-05-10</strong>
Last modified: 2026-08-28

---

Szukaj wtyczek

![](https://s.w.org/plugins/geopattern-icon/dziewa-media-converter-avif-webp.svg)

# DZIEWA Media Converter — AVIF + WebP

 Autor: [Rafał Dziewa](https://profiles.wordpress.org/putiek/)

[Pobierz](https://downloads.wordpress.org/plugin/dziewa-media-converter-avif-webp.1.5.23.zip)

 * [Szczegóły](https://pl.wordpress.org/plugins/dziewa-media-converter-avif-webp/#description)
 * [Recenzje](https://pl.wordpress.org/plugins/dziewa-media-converter-avif-webp/#reviews)
 *  [Instalacja](https://pl.wordpress.org/plugins/dziewa-media-converter-avif-webp/#installation)
 * [Rozwój](https://pl.wordpress.org/plugins/dziewa-media-converter-avif-webp/#developers)

 [Wsparcie](https://wordpress.org/support/plugin/dziewa-media-converter-avif-webp/)

## Opis

DZIEWA Media Converter creates sidecar `.avif` and `.webp` files next to your originals(
no replacement of JPG/PNG in the Media Library). On the front end it can rewrite`
<img>` tags to `<picture>` so browsers pick AVIF/WebP when available. The plugin
is **entirely free to use** — no license fees, no pro version, and no paid add-ons.

#### How it works

The plugin generates additional AVIF and/or WebP files beside every JPEG/PNG you
upload. Originals are never touched or replaced — they remain in the Media Library
and on disk as a safe fallback. The optional content filter detects `<img>` tags
in your post content and wraps them in `<picture>` so modern browsers download the
smaller AVIF/WebP version, while older browsers transparently fall back to JPG/PNG.

#### Conversion

 * **AVIF + WebP, AVIF-only or WebP-only** output modes. AVIF requires PHP GD built
   with AVIF support; the plugin auto-detects this on activation and gracefully 
   falls back to WebP-only when AVIF is unavailable.
 * **Configurable quality** per format (independent AVIF and WebP quality sliders
   in settings).
 * **Automatic conversion on upload** — new attachments are converted in the background
   via WP-Cron or Action Scheduler (when available), so the upload screen never 
   blocks.
 * **Intermediate sizes (thumbnails)** are optionally converted too, so every srcset
   variant has its own AVIF/WebP sidecar.

#### Existing media

 * **Background queue** processes already-uploaded images in configurable batches(
   default 20 files per run, range 5–200). You can scope the queue to a single uploads
   subfolder and/or a date range to avoid scanning the whole library at once.
 * **Bulk action in the Media Library** — select images and run **Convert to AVIF/
   WebP** from the bulk menu.
 * **Per-attachment button** — Media Library list, attachment edit screen and media
   modal each show a **Convert to AVIF/WebP** button next to live savings stats (
   before/after size, percentage saved per format).

#### Front end (content rewriting)

 * Optional `<picture>` rewrite in `the_content` and post thumbnails — browsers 
   automatically pick the lightest format they support.
 * Lookup of attachment IDs from URLs is cached in the WordPress object cache (Redis/
   Memcached when available) and memoised per request, so heavy pages with many 
   images stay fast.

#### Tools & admin UI

 * **Cleanup tool** — remove old generated `.avif` / `.webp` sidecars by age (30/
   60/90/120 days) and folder scope, with a per-folder picker.
 * **Admin bar download** — optional link on singular posts/pages to download the
   original JPG/PNG of the featured image (useful for social platforms that don’t
   accept AVIF/WebP).
 * **Event log** — last 100 events (errors, conversions, queue runs) visible on 
   the settings page.
 * **Three-option uninstall dialog** — when removing the plugin you choose between
   _Cancel_, _Remove (keep generated files)_ or _Remove and delete files_.

#### Privacy & dependencies

 * No external services, no remote calls, no tracking. Everything runs on your own
   server.
 * Requires PHP 8.3+ and PHP GD with WebP support (`imagewebp`). AVIF is optional.
 * Fully translated to Polish; English source strings ready for further translations
   via GlotPress.

## Instalacja

 1. Upload the plugin folder to `/wp-content/plugins/` or install through the Plugins
    screen.
 2. Activate the plugin. PHP must support WebP in GD (`imagewebp`); AVIF is optional
    and auto-detected.
 3. Configure settings under **Settings  DZIEWA Media Converter** in the admin menu,
    or use the **Settings** link in the Plugins screen.

## Najczęściej zadawane pytania

### Does this replace my JPG/PNG files?

No. Original files stay in place; AVIF/WebP are additional files beside them.

### What if my host has no AVIF in GD?

The plugin falls back to WebP-only modes and explains this on the settings page.

## Recenzje

![](https://secure.gravatar.com/avatar/92ce25dfc811443504637b9f9a0dbb75a50eea1df4d0175eef76666ef4623772?
s=60&d=retro&r=g)

### 󠀁[This is a useful plugin for website optimization](https://wordpress.org/support/topic/this-is-a-useful-plugin-for-website-optimization/)󠁿

 [pozharskiy](https://profiles.wordpress.org/pozharskiy/) 2026-09-07 2 odpowiedzi

It’s strange that this plugin has no reviews at all; DeepSeek recommended it to 
me. I was looking for a plugin that would optimize all image files on the site and
ensure they loaded depending on the user’s device and its screen resolution. When
I installed the plugin, I ran into a problem — it didn’t generate AVIF files, even
though the interface on my site showed it in green with the word “Yes,” indicating
that GD AVIF is installed on my server. I resolved the issue relatively quickly,
in about half an hour, also with the help of DeepSeek. Thanks to the plugin’s author!
As of September 2026, in terms of key features, it’s better than many paid plugins.
Please don’t stop improving the plugin; over time, you could add some extra features
and monetize the plugin — and, consequently, your work. Wishing you success!——————————————————————————————————————-
Это полезный плагин для оптимизации сайтаСтранно, что у этого плагина вообще нет
отзывов. Мне его посоветовал DeepSeek. Я искал плагин, чтобы на сайте были оптимизированы
все графические файлы и они загружались в зависимости от устройства пользователя
и разрешения экрана. Когда я установил этот плагин, то столкнулся с проблемой: он
не генерировал AVIF‑файлы, хотя в его интерфейсе на моём сайте было указано зелёным
цветом «Yes» — то есть, согласно интерфейсу, на моём сервере установлен GD AVIF.
С проблемой я справился относительно быстро — примерно за полчаса, также с помощью
DeepSeek. Благодарю автора плагина! По ключевым функциям на сентябрь 2026 года он
лучше многих платных плагинов. Не прекращайте работу по усовершенствованию плагина:
со временем можно добавить какие‑нибудь новые возможности и монетизировать плагин,
а соответственно — и ваш труд. Желаю успехов!

 [ Przeczytaj 1 recenzje ](https://wordpress.org/support/plugin/dziewa-media-converter-avif-webp/reviews/)

## Kontrybutorzy i deweloperzy

„DZIEWA Media Converter — AVIF + WebP” jest oprogramowaniem open source. Poniższe
osoby miały wkład w rozwój wtyczki.

Zaangażowani

 *   [ Rafał Dziewa ](https://profiles.wordpress.org/putiek/)

[Przetłumacz wtyczkę “DZIEWA Media Converter — AVIF + WebP” na swój język.](https://translate.wordpress.org/projects/wp-plugins/dziewa-media-converter-avif-webp)

### Interesuje cię rozwój wtyczki?

[Przeglądaj kod](https://plugins.trac.wordpress.org/browser/dziewa-media-converter-avif-webp/),
sprawdź [repozytorium SVN](https://plugins.svn.wordpress.org/dziewa-media-converter-avif-webp/)
lub czytaj [dziennik rozwoju](https://plugins.trac.wordpress.org/log/dziewa-media-converter-avif-webp/)
przez [RSS](https://plugins.trac.wordpress.org/log/dziewa-media-converter-avif-webp/?limit=100&mode=stop_on_copy&format=rss).

## Rejestr zmian

#### 1.5.23

 * **New:** _Uninstall behavior_ option in settings — opt-in checkbox to delete 
   all generated `.avif` / `.webp` files when removing the plugin. Default is to
   keep the files (safe for reinstall).

#### 1.5.22

 * **Frontend admin bar (optional):** new setting to show a **Download original 
   featured image** link on singular posts/pages (when a featured image exists).
   Serves the original JPG/PNG from disk with a forced download, useful for social
   platforms that expect a non–AVIF/WebP master file. Requires a user who can edit
   the post; uses a nonce on the download URL.

## Meta

 *  Wersja **1.5.23**
 *  Ostatnia aktualizacja **2 miesiące temu**
 *  Włączone instalacje **10+**
 *  Wersja WordPressa ** 6.0 lub nowszej **
 *  Testowano do **7.1.3**
 *  Wersja PHP ** 8.3 lub nowszej **
 *  Język
 * [English (US)](https://wordpress.org/plugins/dziewa-media-converter-avif-webp/)
 * Tagi
 * [AVIF](https://pl.wordpress.org/plugins/tags/avif/)[images](https://pl.wordpress.org/plugins/tags/images/)
   [optimization](https://pl.wordpress.org/plugins/tags/optimization/)[performance](https://pl.wordpress.org/plugins/tags/performance/)
   [webp](https://pl.wordpress.org/plugins/tags/webp/)
 *  [Widok zaawansowany](https://pl.wordpress.org/plugins/dziewa-media-converter-avif-webp/advanced/)

## Oceny

 5 na 5 gwiazdek.

 *  [  1 recenzja 5-gwiazdkowa     ](https://wordpress.org/support/plugin/dziewa-media-converter-avif-webp/reviews/?filter=5)
 *  [  0 recenzji 4-gwiazdkowych     ](https://wordpress.org/support/plugin/dziewa-media-converter-avif-webp/reviews/?filter=4)
 *  [  0 recenzji 3-gwiazdkowych     ](https://wordpress.org/support/plugin/dziewa-media-converter-avif-webp/reviews/?filter=3)
 *  [  0 recenzji 2-gwiazdkowych     ](https://wordpress.org/support/plugin/dziewa-media-converter-avif-webp/reviews/?filter=2)
 *  [  0 recenzji 1-gwiazdkowych     ](https://wordpress.org/support/plugin/dziewa-media-converter-avif-webp/reviews/?filter=1)

[Twoja opinia](https://wordpress.org/support/plugin/dziewa-media-converter-avif-webp/reviews/#new-post)

[Zobacz wszystkierecenzje.](https://wordpress.org/support/plugin/dziewa-media-converter-avif-webp/reviews/)

## Zaangażowani

 *   [ Rafał Dziewa ](https://profiles.wordpress.org/putiek/)

## Wsparcie

Masz coś do dodania? Potrzebujesz pomocy?

 [Zobacz forum wsparcia](https://wordpress.org/support/plugin/dziewa-media-converter-avif-webp/)