{"id":270523,"date":"2026-01-05T07:05:32","date_gmt":"2026-01-05T07:05:32","guid":{"rendered":"https:\/\/wordpress.org\/plugins\/auto-webp-alt-optimizer\/"},"modified":"2026-03-26T10:23:58","modified_gmt":"2026-03-26T10:23:58","slug":"auto-webp-alt-optimizer","status":"publish","type":"plugin","link":"https:\/\/srd.wordpress.org\/plugins\/auto-webp-alt-optimizer\/","author":23428643,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_crdt_document":"","version":"1.5","stable_tag":"trunk","tested":"6.9.4","requires":"6.0","requires_php":"7.4","requires_plugins":null,"header_name":"Auto WebP & Alt Optimizer","header_author":"Wodey","header_description":"Automatically converts uploaded images to WebP format, deletes original files, and auto-fills Alt text based on filenames.","assets_banners_color":"464442","last_updated":"2026-03-26 10:23:58","external_support_url":"","external_repository_url":"","donate_link":"","header_plugin_uri":"https:\/\/chczdigital.com\/","header_author_uri":"","rating":0,"author_block_rating":0,"active_installs":10,"downloads":202,"num_ratings":0,"support_threads":0,"support_threads_resolved":0,"author_block_count":0,"sections":["description","installation","changelog"],"tags":[],"upgrade_notice":{"1.4":"

Major update: Switched to native GD library for reliable WebP conversion. Settings now use fixed quality levels.<\/p>"},"ratings":[],"assets_icons":{"icon-128x128.png":{"filename":"icon-128x128.png","revision":3432469,"resolution":"128x128","location":"assets","locale":""},"icon-256x256.png":{"filename":"icon-256x256.png","revision":3432469,"resolution":"256x256","location":"assets","locale":""}},"assets_banners":{"banner-772x250.png":{"filename":"banner-772x250.png","revision":3432469,"resolution":"772x250","location":"assets","locale":""}},"assets_blueprints":{},"all_blocks":[],"tagged_versions":[],"block_files":[],"assets_screenshots":[],"screenshots":{"1":"Settings Panel:<\/strong> Simple interface with quality level dropdown (Low, Medium, High, Very High).","2":"Media Library:<\/strong> Shows images converted to WebP format automatically."},"jetpack_post_was_ever_published":false},"plugin_section":[],"plugin_tags":[185648,29152,29158,186,15376],"plugin_category":[55],"plugin_contributors":[253313],"plugin_business_model":[],"class_list":["post-270523","plugin","type-plugin","status-publish","hentry","plugin_tags-auto-alt","plugin_tags-image-compression","plugin_tags-image-optimizer","plugin_tags-seo","plugin_tags-webp","plugin_category-seo-and-marketing","plugin_contributors-wodey","plugin_committers-wodey"],"banners":{"banner":"https:\/\/ps.w.org\/auto-webp-alt-optimizer\/assets\/banner-772x250.png?rev=3432469","banner_2x":false,"banner_rtl":false,"banner_2x_rtl":false},"icons":{"svg":false,"icon":"https:\/\/ps.w.org\/auto-webp-alt-optimizer\/assets\/icon-128x128.png?rev=3432469","icon_2x":"https:\/\/ps.w.org\/auto-webp-alt-optimizer\/assets\/icon-256x256.png?rev=3432469","generated":false},"screenshots":[],"raw_content":"\n

You know that Site Speed<\/strong> and SEO<\/strong> are the keys to success.<\/p>\n\n

Auto WebP & Alt Optimizer<\/strong> is a lightweight yet powerful tool designed to solve two major problems automatically:<\/p>\n\n

    \n
  1. Image Size (Speed):<\/strong> It automatically converts your uploaded JPG\/PNG images into the modern WebP<\/strong> format. WebP images are significantly smaller (often 30-50% smaller) than standard JPEGs.\n\n
      \n
    • New in 1.4:<\/strong> We now use the native PHP GD library (imagewebp<\/code>) to ensure compression settings work on all server environments, bypassing common WordPress cache issues.<\/li>\n<\/ul><\/li>\n
    • Image SEO (Ranking):<\/strong> It automatically cleans up your image filenames (removing hyphens and underscores) and sets them as the Alt Text<\/strong>. Google relies on Alt text to understand images, and this plugin ensures you never forget to fill it in.<\/li>\n<\/ol>\n\n

      Key Features<\/h3>\n\n
        \n
      • Native WebP Conversion:<\/strong> Uses low-level GD functions to guarantee file size reduction.<\/li>\n
      • 4 Quality Levels:<\/strong> Choose from Low (20), Medium (50), High (80), or Very High (90) quality presets to suit your needs.<\/li>\n
      • Auto Alt Tags:<\/strong> Converts my-product-photo.jpg<\/code> to \"My Product Photo\" automatically.<\/li>\n
      • Zero Bloat:<\/strong> No complex configuration. Just install, select a level, and forget.<\/li>\n<\/ul>\n\n

        Why use this plugin?<\/h3>\n\n
          \n
        • Boost Core Web Vitals:<\/strong> Smaller images mean faster LCP (Largest Contentful Paint).<\/li>\n
        • Save Storage:<\/strong> Stop storing duplicate versions of images. original files are replaced to save space.<\/li>\n
        • Automate SEO:<\/strong> Save hours of manual work filling in Alt tags.<\/li>\n<\/ul>\n\n
          \n

          Note:<\/strong> This plugin processes images upon upload. It does not currently process images already existing in your Media Library.<\/p>\n<\/blockquote>\n\n\n

            \n
          1. Upload the plugin files to the \/wp-content\/plugins\/auto-webp-alt-optimizer<\/code> directory, or install the plugin through the WordPress plugins screen directly.<\/li>\n
          2. Activate the plugin through the 'Plugins' screen in WordPress.<\/li>\n
          3. Go to Settings -> WebP & Alt Settings<\/strong> to configure the plugin.<\/li>\n
          4. Enable the switch and select your desired Quality Level (Recommended: High - 80).<\/li>\n
          5. Done! Upload a new image to test it out.<\/li>\n<\/ol>\n\n\n

            1.4<\/h4>\n\n
              \n
            • Changed quality selection to fixed presets (Low, Medium, High, Very High) for better usability.<\/li>\n
            • Switched to native PHP GD library functions (imagewebp<\/code>) to solve server compatibility and caching issues.<\/li>\n
            • Added support for retaining PNG transparency.<\/li>\n<\/ul>\n\n

              1.3<\/h4>\n\n
                \n
              • Improved image resizing logic to force cache refresh.<\/li>\n<\/ul>\n\n

                1.2<\/h4>\n\n
                  \n
                • Fixed Text Domain mismatch issues.<\/li>\n
                • Improved sanitization and security.<\/li>\n<\/ul>\n\n

                  1.0<\/h4>\n\n
                    \n
                  • Initial release.<\/li>\n<\/ul>","raw_excerpt":"Automatically convert uploaded images to WebP format using native GD library for maximum compatibility, and auto-fill image Alt text for better SEO.","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/srd.wordpress.org\/plugins\/wp-json\/wp\/v2\/plugin\/270523","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/srd.wordpress.org\/plugins\/wp-json\/wp\/v2\/plugin"}],"about":[{"href":"https:\/\/srd.wordpress.org\/plugins\/wp-json\/wp\/v2\/types\/plugin"}],"replies":[{"embeddable":true,"href":"https:\/\/srd.wordpress.org\/plugins\/wp-json\/wp\/v2\/comments?post=270523"}],"author":[{"embeddable":true,"href":"https:\/\/srd.wordpress.org\/plugins\/wp-json\/wporg\/v1\/users\/wodey"}],"wp:attachment":[{"href":"https:\/\/srd.wordpress.org\/plugins\/wp-json\/wp\/v2\/media?parent=270523"}],"wp:term":[{"taxonomy":"plugin_section","embeddable":true,"href":"https:\/\/srd.wordpress.org\/plugins\/wp-json\/wp\/v2\/plugin_section?post=270523"},{"taxonomy":"plugin_tags","embeddable":true,"href":"https:\/\/srd.wordpress.org\/plugins\/wp-json\/wp\/v2\/plugin_tags?post=270523"},{"taxonomy":"plugin_category","embeddable":true,"href":"https:\/\/srd.wordpress.org\/plugins\/wp-json\/wp\/v2\/plugin_category?post=270523"},{"taxonomy":"plugin_contributors","embeddable":true,"href":"https:\/\/srd.wordpress.org\/plugins\/wp-json\/wp\/v2\/plugin_contributors?post=270523"},{"taxonomy":"plugin_business_model","embeddable":true,"href":"https:\/\/srd.wordpress.org\/plugins\/wp-json\/wp\/v2\/plugin_business_model?post=270523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}