Clean Image Filenames

This plugin automatically converts language accent characters in filenames when uploading to the media library. Characters are converted into browser and server friendly, non-accent characters.

Features

• Converts accent characters to non-accent, latin equivalents in Swedish, Danish, German, and more.
• Removes special characters like exclamation marks, periods, hashtags, and more.
• Lets you choose if you want to convert only image files, or all file types.
• Makes site and server migrations easier thanks to non-accent character filenames.
• Provides filter hook for developers who want to specify which file types to convert.

Examples

• Räksmörgås.jpg → raksmorgas.jpg
• Æblegrød_FTW!.gif → aeblegrod-ftw.gif
• Château de Ferrières.png → chateau-de-ferrieres.png

Worth noting

The plugin only converts filenames when the files are being uploaded. It can not convert existing files.

Filter for developers

This filter provides developers a way to specify which file types the plugin should convert. This filter overrides the plugin settings on the media settings page. For a complete list of mime types, see Wikipedia.

The following example will convert PDF, JPEG and PNG files only:

function my_clean_image_filenames_mime_types() {
    $mime_types = array(
        'application/pdf',
        'image/jpeg',
        'image/png',
    );
    return $mime_types;
}
add_filter( 'clean_image_filenames_mime_types', 'my_clean_image_filenames_mime_types' );

1. Search for Clean Image Filenames in the plugins directory.
2. Install and activate the plugin.

or

1. Download and unzip the plugin and upload the clean-image-filenames directory to your /plugins/ directory.
2. Activate the plugin through the ‘Plugins’ menu in WordPress.

1. 

   Easily choose between cleaning the filenames of all file types or images only.

1.5

• Add support for WebP and AVIF image formats. Thanks to @vinkla for the pull request.

1.4

• Add support for cleaning filenames when sideloaded (usually when uploaded programmatically) using the wp_handle_sideload_prefilter hook.

1.3

• Rewrite cleaning function to better handle specific characters.
• Make sure code is compliant with WordPress Coding Standards.

1.2.1

• Enable plugin to be translated/internationalization.

1.2

• Set original, un-cleaned filename as attachment title.

1.1.1

• Added uninstall script that deletes plugin settings when the plugin is uninstalled.

1.1

• Added plugin settings to media settings page with option to convert all file types or just image file types.
• Added shortcut to plugin settings from the plugins list.

1.0

• Initial release.