Modern Image Formats


This plugin adds WebP and AVIF support for media uploads within the WordPress application. By default, AVIF images will be generated if supported on the hosting server, otherwise WebP will be used as the output format. When both formats are available, the output format can be selected under Settings > Media. Modern images will be generated only for new uploads, pre-existing images will only converted to a modern format if images are ”Regenerated”.

By default, only modern image format sub-sizes will be generated for JPEG uploads – only the original uploaded file will still exist as a JPEG image, generated image sizes use be WebP or AVIF files. To change this behavior, there is a checkbox in Settings > Media ”Also output JPEG” that – when checked – will result in the plugin generating both JPEG and WebP or AVIF images for every sub-size (noting again that this will only affect newly uploaded images, i.e. after making said change).

Detta tillägg hette tidigare WebP Uploads.


Installation inifrån WordPress

  1. Besök Tillägg > Lägg till nytt.
  2. Sök efter Modern Image Formats.
  3. Installera och aktivera tillägget Modern Image Formats.

Manuell installation

  1. Ladda upp hela mappen webp-uploads till katalogen /wp-content/plugins/.
  2. Besök Tillägg.
  3. Aktivera tillägget Modern Image Formats.

Vanliga frågor

Var kan jag skicka in min återkoppling om tillägget?

Feedback is encouraged and much appreciated, especially since this plugin may contain future WordPress core features. If you have suggestions or requests for new features, you can submit them as an issue in the WordPress Performance Team’s GitHub repository. If you need help with troubleshooting or have a question about the plugin, please create a new topic on our support forum.

Var kan jag rapportera säkerhetsproblem?

Performance-teamet och WordPress-communityn tar säkerhetsfel på allvar. Vi uppskattar dina ansträngningar att ansvarsfullt rapportera dina upptäckter och kommer att göra allt vi kan för att erkänna dina bidrag.

För att rapportera ett säkerhetsproblem, besök WordPress HackerOne-programmet.

Hur kan jag bidra till tillägget?

Bidrag är alltid välkomna! Läs mer om hur du kan engagera dig i Handboken för Core Performance-team.

I’ve activated the Modern Image Formats plugin, but WebP images are not always generated when I upload a JPEG image. Why?

Det finns två huvudsakliga anledningar till att en WebP-bild kanske inte genereras:

  1. The Modern Image Formats plugin has identified that the WebP version of the uploaded JPEG image would have a larger file size than the original JPEG image, so it does not generate the WebP version.
  2. JPEG-bilden laddades inte upp till Mediabiblioteket. För närvarande genereras WebP-versioner endast för bilder till mediebiblioteket. WebP-versioner genereras inte för JPEG-bilder som läggs till på din webbplats på andra sätt, t.ex. i en mallfil eller i Anpassaren.

With the Modern Image Formats plugin activated, will the plugin generate JPEG and WebP versions of every image that I upload?

By default, the Modern Image Formats plugin will only generate WebP versions of the images that you upload. If you wish to have both WebP and JPEG versions generated, you can navigate to Settings > Media and enable the Generate JPEG files in addition to WebP option.


18 juli 2024
This plugin worked like it says but it did not change all of the images in the blog posts – only some. So I have a ton of broken images because they are referencing the .jpg and not the .avif I even tried regenrate thumbnails and that did not fix the issue. All of the broken images are the thumnails that are resized. It would be better if it did not automatically delete those images so that at least if it didnt replace them all in the blog posts the old image would still resolve.
25 mars 2024 1 svar
Simple Plugin, that does it’s one simple job very good. Definitely a recommendation!
5 februari 2024 1 svar
I’ve had a hard time with an issue making it impossible for my users to upload their profile avatar (using Peepso plugin). Trying to debug the Ajax call, I’ve observed an error 500 message, making the whole website unresponsive when being called upon avatar confirmation. After proceeding by elimination, I finally located the issue to this new extension I had installed some time ago. Next time I’ll be more prudent…
20 januari 2024 5 svar
The plugin does exactly what it says; Adds support for WebP images and automatically converts the pictures you upload to that specific format. However, not having the option to convert existing images is a big feature missing from the plugin for me. I don’t know what you have in your future plans, but what would you recommend for converting old images to WebP and deleting their original format to save disk space? I’m currently using WebP Express, but I wonder if you recommend something else?
Läs alla 9 betyg

Bidragsgivare och utvecklare

”Modern Image Formats” är programvara med öppen källkod. Följande personer har bidragit till detta tillägg.

Bidragande personer

”Modern Image Formats” har översatts till 8 språk. Tack till översättarna för deras bidrag.

Översätt ”Modern Image Formats” till ditt språk.

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  • I18N: Add context to Modern Image Formats section title. (1287)

Bug Fixes

  • Improve compatibility of styling picture elements. (1307)


Bug Fixes

  • Fix fatal error when another the_content filter callback returns null instead of a string. (1283)



  • Add picture element support. (73)
  • Add AVIF image format support. Add setting for output image format to choose between WebP and AVIF. (1176)


  • Improve Settings->Media controls for Modern Image Formats. (1273)
  • Remove obsolete fallback script now that picture element is supported. (1269)



  • Prepend Settings link in webp-uploads. (1146)
  • Improve overall code quality with stricter static analysis checks. (775)
  • Bump minimum PHP requirement to 7.2. (1130)


  • Updated inline documentation. (1160)


  • Add link to WebP settings to plugins table. (1036)
  • Rename plugin to ”Modern Image Formats”. (1101)
  • Use plugin slug for generator tag. (1103)
  • Delete option when uninstalling the Modern Image Formats plugin. (1116)
  • Bump minimum required WP version to 6.4. (1062)
  • Update tested WordPress version to 6.5. (1027)


  • Exclude ”.wordpress-org” directory when deploying standalone plugins. (866)


  • Bump minimum required PHP version to 7.0 and minimum required WP version to 6.3. (851)


  • Add standalone plugin assets. (815)


  • Fix WebP handling when editing images based on WordPress 6.3 change. (796)


  • Bump tested up to version to 6.3. (772)


  • Initial release of the Modern Image Formats plugin as a standalone plugin. (664)