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πŸš€πŸ”₯ Kirby 3 CMS plugin for converting JPG, JPEG and PNG into much smaller WEBP – speed up your website!

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kirby3-webp

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Kirby 3 CMS plugin for converting JPG, JPEG and PNG into much smaller WEBP – speed up your website! πŸš€πŸ”₯

... and get the Lighthouse statistic you are dreaming of! 😍

πŸ₯ Installation

Composer

composer require felixhaeberle/kirby3-webp

Git Submodule

git submodule add https://github.com/felixhaeberle/kirby3-webp.git site/plugins/kirby3-webp

Clone or download

  1. Clone or download this repository.
  2. Unzip / Move the folder to site/plugins.

1️⃣ Activate the plugin

Activate the plugin in the site/config/config.php file with kirby3-webp => true.

return [
  'kirby3-webp' => true
]

2️⃣ Getting started

After installing and activating the plugin, you need to serve webp files to the frontend with your server configuration.

Apache

Add the following to your .htaccess:

<IfModule mod_rewrite.c>
  RewriteEngine On

  # Checking for WebP browser support ..
  RewriteCond %{HTTP_ACCEPT} image/webp

  # .. and if there's a WebP version for the requested image
  RewriteCond %{DOCUMENT_ROOT}/$1.webp -f

  # Well, then go for it & serve WebP instead
  RewriteRule (.+)\.(jpe?g|png)$ $1.webp [T=image/webp,E=accept:1]
</IfModule>

<IfModule mod_headers.c>
  Header append Vary Accept env=REDIRECT_accept
</IfModule>

<IfModule mod_mime.c>
  AddType image/webp .webp
</IfModule>

NGINX

For NGINX, use the following virtual host configuration:

// First, make sure that NGINX' `mime.types` file includes 'image/webp webp'
include /etc/nginx/mime.types;

// Checking if HTTP's `ACCEPT` header contains 'webp'
map $http_accept $webp_suffix {
  default "";
  "~*webp" ".webp";
}

server {
  // ...

  // Checking if there's a WebP version for the requested image ..
  location ~* ^.+\.(jpe?g|png)$ {
    add_header Vary Accept;
    // .. and if so, serving it
    try_files $1$webp_ext $uri =404;
  }
}

βš™οΈ Options

You have multiple options when using kirby3-webp to configure it to your needs:

Option Type Default Description
kirby3-webp.quality Integer 90 See the Auto quality section.
kirby3-webp.maxQuality Integer 85 Only relevant for jpegs and when quality is set to "auto".
kirby3-webp.defaultQuality Integer 85
kirby3-webp.metadata Array "none" Valid values: "all", "none", "exif", "icc", "xmp". Note: Currently only cwebp supports all values.

gd will always remove all metadata. ewww, imagick and gmagick can either strip all, or keep all (they will keep all, unless metadata is set to none)
kirby3-webp.encoding Array "auto" See the Auto selecting between lossless/lossy encoding section.
kirby3-webp.skip Boolean false If true, conversion will be skipped (ie for skipping png conversion for some converters)

πŸ‘ Credit

🀩 How this plugin works

kirby3-webp

🀯 Good to know

Sometimes, if the pictures are really big (multiple MB's) the converting process takes naturally longer, but does complete for sure. The .webp gets generated, but not selected, because if the client can accept .webp, the .webp is sent to the client instead of the .png, .jpeg or .jpg. Therefore, you are in need of the Apache/nginx configuration.

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πŸš€πŸ”₯ Kirby 3 CMS plugin for converting JPG, JPEG and PNG into much smaller WEBP – speed up your website!

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