Product support

Get help in the plugin support forum.



  • Responsive images
  • Automatic WebP conversion
  • Focuspoint
  • Inline SVG helper function

The auto-resize middleware turns this

<img width="500" src="/storage/app/media/image.jpg">

into this

<img width="500" src="/storage/app/media/image.jpg" srcset="/storage/temp/public/be7/4d6/0cc/image__400.jpg 400w, /storage/temp/public/be7/4d6/0cc/image__768.jpg 768w, /storage/temp/public/be7/4d6/0cc/image__1024.jpg 1024w" sizes="(max-width: 500px) 100vw, 500px">

It automatically creates resized copies of the image and serves the most fitting one to your visitor. All image copies are saved in your public temp path. Remote file systems are currently untested.

If the visitor's web browser supports the WebP image format, this plugin will automatically generate and serve highly optimized WebP images.

The images are generated on the first page load. Depending on the source image size this may take a few seconds. Subsequent page loads will be faster since the images are only resized once.

See the Documentation tab for the configuration and usage details.

Test results

I have tested this plugin on a page with 20 hd wallpapers from pixabay.

Viewport width Transferred file size
1920 px 21.8 MB
1024 px 3.1 MB
768 px 2.0 MB
400 px 0.8 MB

Bug reports

It is very likely that there will be bugs with some specific html markup. If you encounter such a bug, please report it.

Future plans

  • Exclude/Include-Filters
  • Maybe a component to enable the middleware only on some pages

Responsive images


Three image sizes are created by default: 400, 768 and 1024 pixels.

You can change these values by changing the settings in the backend.

Alternative src and srcset attributes

If you want to use an alternative src attribute you can change this via the backend settings page.

This is useful if you are using a plugin like jQuery.lazyLoad where the image is initially linked via a data-original attribute.

If your plugin requires an alternative srcset attribute (like verlok/LazyLoad) this can also be specified via the backend settings.

Global class attributes

If you want to add a class to every processed image you can configure this via the backend settings.

This is useful if you want to add Bootstrap's img-responsive class to all images on your website.

Pre-generate images

You can use the php artisan responsive-images:generate command to pre-generate responsive images. The command uses October's pages.menuitem.* events to build a list of all available URLs and pre-generates all images used on these pages.

Test results

I have tested this plugin on a page with 20 hd wallpapers from pixabay.

Viewport width Transferred file size
1920 px 21.8 MB
1024 px 3.1 MB
768 px 2.0 MB
400 px 0.8 MB

Automatic WebP conversion

This plugin provides an option to automatically convert all images to the WebP image format if the visiting Browser signals support for it.

Be aware that each WebP image is created on-demand with the first page view that requests it. This might lead to slow page load times for your first visitors. To prevent this, warm up the image cache by visiting every page at least once (by using a linkchecker) or use the php artisan responsive-images:generate -v console command.

To make use of this feature, enable it via October's backend settings. If you are using Apache with .htaccess support, the plugin will serve WebP images to supported browsers automatically.

If you do not use Apache, you have to configure your server to do the following:

  1. Check if image/webp is present in the Accepts http header
  2. Check if the requested image ends in jp(e)g or png
  3. Check if the requested image + a .webp exists
  4. If it does, serve it
  5. If it does not, redirect the request to plugins/offline/responsiveimages/webp.php?path=${REQUEST_URI}

The webp.php helper script will generate any missing WebP images so they can be served directly on the next visit.

Apache + .htaccess

This is the default .htaccess configuration that gets applied automatically:

# Added by default! No need to add this manually
<ifModule mod_rewrite.c>
    RewriteEngine On

    # If the Browser supports WebP images, and the .webp file exists, use it.
    RewriteCond %{HTTP_ACCEPT} image/webp
    RewriteCond %{REQUEST_URI} \.(jpe?g|png)$
    RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI}\.webp -f
    RewriteRule (.+)$ $1.webp [T=image/webp,E=accept:1]

    # If the Browser supports WebP images, and the .webp file does not exist, generate it.
    RewriteCond %{HTTP_ACCEPT} image/webp
    RewriteCond %{REQUEST_URI} \.(jpe?g|png)$
    RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI}\.webp !-f
    RewriteRule (.+)$ %{DOCUMENT_ROOT}/plugins/offline/responsiveimages/webp.php?path=$1 [L]

Other servers

We did not invest in the proper WebP detection configuration for other server software. Based on the .htaccess example above and the webp-detect repo you should be able to figure out what config is needed.

If you have a working example please add it via a PR to this README!


This feature has two components to it:


In the backend, the file upload widget is extended with a simple focus point selector.

To enable this extension simply set focuspoint: true to any fileupload widget in your plugin's fields.yaml. This feature is off by default.

Once it is enabled you can click on an uploaded image to select the focus point.

        label: Images
        mode: image
        useCaption: true
            mode: crop
            extension: auto
        span: full
        type: fileupload
        # Enable the focus point selector
        focuspoint: true



You can use the new focus method on any File model to get the source to a focus point image.

The focus method has the exact same API as the thumb method, you can specify a height, width and a mode.

<img src="{{ image.focus(200, 300, 'auto') }}" alt="">

This call will result in the following HTML:

<img src="/storage/temp/public/a9f/2bd/159/offline-focus_30_400_500_50_50_0_0_auto__400.jpg" 
     style="width: 100%; height: 100%; object-fit: cover; object-position: 30% 80%;">

You can disable the injection of the inline styles via the plugin's backend settings.

If you want to use any of the existing focus point JS libraries you can also define a custom container that will be place around the image. The focus coordinates can be injected as custom data-* attributes.

All of these settings are available on the plugin's backend settings page.

<div class="focuspoint-container" data-focus-x="50" data-focus-y="30">
    <img src="/storage/temp/public/a9f/2bd/159/offline-focus_30_400_500_50_50_0_0_auto__400.jpg" 


Be aware that object-fit is not supported in IE without using a polyfill.

Inlining SVG images

This plugin registers a simple svg helper function that enables you to inline SVG images from your project.

<!-- search in theme directory -->
<div class="inline-svg-wrapper">
    {{ svg('assets/icon.svg') }}

<!-- start with a / to search relative to the project's root -->
<div class="inline-svg-wrapper">
    {{ svg('/plugins/vendor/plugin/assets/icon.svg') }}

Using variables

Aside from inlining the SVG itself the helper function will also pass any variables along to the SVG and parse it using October's Twig parser. This means you can easily create dynamic SVGs.

<!-- icon.svg -->
<svg fill="{{ fill }}" width="{{ width | default(800) }}"> ...
<!-- You can pass variables along as a second parameter -->
<img src="{{ svg('/plugins/xy/assets/icon.svg', {fill: '#f00', width: '200'}) }}">
  • Found the plugin useful on 5 Feb, 2021

    Good plugin, however I'm trying to enable webp support on a server running Apache 2.2 and the END flag was only added in 2.3.

    Any known work arounds for the .htaccess file without the END flag?

  • Found the plugin useful on 9 Nov, 2020

    Great plugin. Thank you.

  • Found the plugin useful on 28 Nov, 2019

    Muse have plugin that we put on every october install. You can continue to write your image tags as usual and it make them responsive with some magic. Very very great time saver.

    The recent options about inline SVG and focuspoint is the icing on the cake.

  • Found the plugin useful on 23 Jul, 2016

    Speed up my sites!

  • Found the plugin useful on 23 Mar, 2016

    It breaks the <script type="text/template"> on Responsiv.Uploader (which is the file upload/image upload plugin). See below, if originally there was open and close <div></div>, close tags are not displayed.

    <script type="text/template" id="uploaderTemplateimageUploader"> <div> </script>


Fixed config extension event handler

May 20, 2024


Fixed config extension event handler

May 16, 2024


Refactored the focus point feature to work with October CMS 3

May 02, 2024


Fixed Image Pre-Generation in newer October versions

Jan 16, 2024


Fixed SVG inlining in child themes

Dec 20, 2023


Bugfix release

Nov 02, 2023


The plugin now processes images in JSON responses as well

Nov 02, 2023


Fixed path generation (thanks to @damsfx)

Sep 08, 2023


Fixed clear image cache widget (thanks to @PubliAlex)

Jun 05, 2023


Fixed bug where generated image URLs contained duplicated slashes (thanks to @damsfx)

Apr 26, 2023


Fixed bug in responsive-images:clear console command (thanks to @Zmove)

Feb 24, 2023


Optimized compatibility with October 1, 2, 3 and Winter CMS

Jul 27, 2022


Added dashboard widget and console command to clear image cache (thanks to @PubliAlex)

May 27, 2022


Added Support for Laravel 9/October 3

May 04, 2022


Fixed bug in WebP converter

Apr 12, 2022


Optimized compatibility

Jan 17, 2022


Reverted change to optimize

Jan 15, 2022


Moved away from deprecated MediaLibrary class

Jan 12, 2022


Optimized compatibility

Jan 12, 2022


Preserve existing inline styles when using focuspoint

Dec 10, 2021


Optimized compatibility with October 2.0

Dec 10, 2021


Fixed various focuspoint bugs

Dec 03, 2021


Added "responsive-images:convert" console command to create WebP images using a Cronjob (check README). It is recommended you use this method instead of the automatic WebP conversion going forward. To update, go to the backend settings and hit save with the automatic WebP conversion option turned off. This will update your .htaccess file. Then setup a Cronjob to run the conversion command to generate the WebP images.

Dec 03, 2021


Created table offline_responsiveimages_inconvertibles

Dec 03, 2021


Added filesize limit to WebP converter: By default, only images that are 750 KB or less are converted to WebP to prevent memory issues. Patch webp.php to customize this limit.

Aug 31, 2021


Switched to October\Rain\Resize\Resizer for resizing images as October\Rain\Database\Attach\Resizer is deprecated (thanks to @TimFoerster)

Jul 19, 2021


Switched to October\Rain\Resize\Resizer for resizing images as October\Rain\Database\Attach\Resizer is deprecated (thanks to @TimFoerster)

Jul 19, 2021


Optimized SQLite Support

Apr 27, 2021


Automatically encode special chars in img sources. This solves a problem where unencoded & symbols in src attributes cancelled the img processing.

Jan 07, 2021


Optimized logging of unprocessable/invalid HTML markup. These errors now also respect the 'Log unprocessable images' option correctly.

Jan 07, 2021


Fixed focuspoint image output (coordinates were not set correctly)

Nov 17, 2020


Fixed saving of focuspoint image title and description

Sep 16, 2020


Added `data-responsive="ignore"` attribute support to skip processing of specific img tags

Aug 12, 2020


Fixed a bug where focus points were not saved correctly

Jul 29, 2020


Add focus columns to system_files

Jul 29, 2020


Added `RESPONSIVE_IMAGES_BASE_DIR` env variable to get more control over the source path configuration for WebP images

Jun 10, 2020


Minor bugfix for default WebP htaccess configuration

Jun 10, 2020


Enabled support for cwebp to convert images to the webp format. This makes everything a lot more performant!

May 07, 2020


Fixed focuspoint image generation with multiple src attributes

Apr 24, 2020


Added support to configure multiple `src` and `srcset` attributes at once (useful for lazy loading plugins)

Apr 13, 2020


Optimized WebP image quality

Feb 13, 2020


Further optimized PHP 7.4 support

Feb 13, 2020


Optimized PHP 7.4 support

Jan 24, 2020


Optimized handling of custom src attributes

Nov 28, 2019


Performance improvements (thanks to @mauserrifle)

Nov 22, 2019


Optimized WebP implementation

Nov 17, 2019


Added support for automatic WebP conversion

Nov 16, 2019


Another minor bugfix release

Oct 16, 2019


Fixed Settings form layout

Oct 16, 2019


Fixed bug where images were not resized under certain conditions

Oct 16, 2019


Added focuspoint feature

Oct 05, 2019


Reverted previous change until October's PNG resize bug is fixed (https://github.com/octobercms/library/pull/396)

May 06, 2019


Store copy of original image in the temp folder as well (makes image optimizations possible without the need to modify the original image, thanks to @mauserrifle)

Apr 29, 2019


Re-implemented compatibility fix (thanks to @mauserrifle)

Apr 25, 2019


Reverted previous change since it introduced performance issues

Apr 25, 2019


Fixed php-gd compatibility problem (thanks to @mauserrifle)

Apr 25, 2019


Allow `| media` and `| theme` filters in the `svg` helper function

Mar 07, 2019


Optimized image matching to also include images with custom attributes before the src attribute

Feb 25, 2019


Added missing relations for Theme and SVGInliner classes

Feb 22, 2019


Added `svg` helper function to inline SVGs (see README for usage)

Feb 20, 2019


Fixed handling of relative protocol urls

Jan 14, 2019


Fixed problem when using custom src attributes

Jan 06, 2019


Ignore image tags that don't have a src attribute

Dec 07, 2018


Implemented new image replacement technique (fixes lots of compatibility problems with other plugins)

Nov 29, 2018


Added `responsive-images:generate` artisan command to pre-generate all image sizes (thanks to kiselli)

Nov 27, 2018


Fixed resizing of image paths that contain spaces (thanks to adamo)

Oct 30, 2018


Optimized support for installations that serve multiple domains

Sep 03, 2018


Optimized support for multi-byte character strings (thanks to sergei3456)

Jul 25, 2018


Use correct app url to determine if an image is external or local

Jul 05, 2018


Reverted multi-byte optimization since the change removes the DOCTYPE while parsing the html

Jun 10, 2018


Optimized support for multi-byte character strings (thanks to sergei3456)

Jun 08, 2018


Added french translation (thanks to damsfx)

Jun 08, 2018


Fixed processing of relative pahts when October runs in a subdirectory

Jun 08, 2018


Added compatibility with current edgeUpdate builds

Oct 28, 2016


Added settings page, support for lazy-loading plugins and responsive class attributes

Oct 28, 2016


Fixed handling of filenames containing spaces (Thanks to webeks!)

Oct 18, 2016


Added alternative-src config option to support jQuery.lazyLoad plugin

Feb 02, 2016


Fixed encoding problems

Jan 14, 2016


First version of ResponsiveImages

Dec 12, 2015