Thumbnail (150×150 pixels) \u2013 Used in galleries and widgets.<\/p>\n\n\n\n
Medium (typically 300×300 pixels) \u2013 Ideal for content areas.<\/p>\n\n\n\n
Large (typically 1024×1024 pixels) \u2013 Used for full-width images.<\/p>\n<\/div>\n\n\n\n
Many themes and plugins add their own custom image sizes, further expanding the number of versions stored. If you change your theme or modify image size settings, WordPress does not regenerate your existing images automatically, which can result in distorted or misaligned images. <\/p>\n\n\n\n
That\u2019s where you need to regenerate thumbnails in your WordPress site. It updates your website images to fit your latest settings without requiring you to re-upload them manually.<\/p>\n\n\n\n
How to Regenerate Thumbnails in WordPress: (2 methods)<\/h2>\n\n\n\n
Generating new thumbnails for your WordPress site is super easy. You can regenerate thumbnails in your WordPress using the following methods.:<\/p>\n\n\n\n
1. WordPress Plugin<\/strong><\/p>\n\n\n\n 2. WP CLI<\/strong><\/p>\n\n\n\n First, we will go through one of the easiest methods using the free WordPress plugin ThumbPress.<\/p>\n\n\n\n With this plugin, you can do many more things. Let\u2019s start with how you can regenerate thumbnails in your WordPress.<\/p>\n\n\n\n Go to your WordPress dashboard >> Plugins >> Add New<\/strong> and search for ThumbPress. Click the install button and activate it.<\/p>\n\n\n\n When your plugin is activated, navigate to ThumbPress >> Thumbnails<\/strong>. In here, you can put the number of thumbnails you want to generate.<\/p>\n\n\n\n Now, hit the Regenerate Now<\/strong>\u00a0button.\u00a0Converting images might take some time and you cannot close that tab until it\u2019s complete. To avoid this inconvenience you can enable\u00a0Regenerate in Background<\/strong>.\u00a0<\/p>\n\n\n\n If you prefer a faster, more efficient way to regenerate thumbnails without relying on a plugin, WP CLI (WordPress Command Line Interface) Is your best option. This method is especially useful for developers, site administrators, or anyone managing large websites with numerous images. No more waiting, let stats with the steps:<\/p>\n\n\n\n If you want to use WP CLI, you need SSH access to your WordPress site using an SSH client. Download the SSH client Putty<\/a> (popular for Windows) or the Terminal<\/a> (Mac\/Linux). I am using Putty for giving commands here.<\/p>\n\n\n\n Before connecting to your server, ensure you have your SSH login credentials, which include:<\/p>\n\n\n\n Now, open Putty and enter your server’s IP in the Host Name field under the Session category<\/strong>. You also need to set the port to 22 (or your server\u2019s port), select SSH<\/strong>, name the session under Saved Sessions<\/strong>, and click Save for future access.<\/p>\n\n\n\n If you are using an SSH key for extra layer security, go to SSH >> Auth >> Credentials<\/strong>. Provide the necessary field details and save the changes.<\/p>\n\n\n\n Once logged in, navigate to your WordPress installation folder using the cd command. For example:<\/p>\n\n\n\n Use the following WP-CLI command to regenerate thumbnails for all images in your media library:<\/p>\n\n\n\n The –yes flag skips confirmation prompts, allowing the process to run automatically. If you want to regenerate thumbnails for a specific image, use:<\/p>\n\n\n\n N, B. (Replace 123 with the actual image ID.)<\/strong><\/p>\n\n\n\n WP-CLI will go through all images and regenerate thumbnails based on your current theme\u2019s settings. The time required depends on the number of images in your library.<\/p>\n\n\n\n Once the process is complete, visit your website and check your images to ensure they are correctly resized.<\/p>\n\n\n\n If you don\u2019t want to use plugins or WP-CLI, another way is to manually re-upload images:<\/p>\n\n\n\n 1. Delete and re-upload the affected images from the WordPress Media Library.<\/p>\n\n\n\n 2. WordPress will generate new thumbnails based on your latest settings.<\/p>\n\n\n\n N.B., This method is not efficient for large websites but works for a few images.<\/strong><\/p>\n\n\n\n Regenerating thumbnails in WordPress is essential to maintaining a visually appealing and professional-looking website, especially after changing themes or modifying image sizes. <\/p>\n\n\n\n Whether you use a plugin like ThumbPress for a quick and easy solution or opt for WP-CLI for a more advanced, command-line approach, both methods ensure that your images align perfectly with your latest settings.<\/p>\n\n\n\n By following this step-by-step guide, you can efficiently regenerate thumbnails and avoid distorted or improperly cropped images. Keeping your media library updated enhances your site’s aesthetics and performance, as well as user experience. <\/p>\n\n\n\n Now that you know how to regenerate thumbnails, your WordPress images will always look clean, and well-optimized!<\/p>\n\n\n\n With ThumbPress regenerate thumbnails you can regenerate thumbnails in minutes. Here is how: <\/p>\n\n\n\n Yes, you can regenerate thumbnails in WordPress without using plugins by using WP-CLI (WordPress Command Line Interface). This method is efficient, especially for large websites, as it doesn’t require installing additional plugins<\/p>\n\n\n\n1. Regenerate Thumbnails with WordPress Plugin<\/h3>\n\n\n\n
Step 1: Install the plugin<\/h4>\n\n\n\n
![\"\"](\"https:\/\/thumbpress.co\/wp-content\/uploads\/2024\/08\/ThumbPress-install.webp\")
<\/figure>\n\n\n\nStep 2: Enable the regenerate thumbnail settings<\/h4>\n\n\n\n
![\"\"](\"https:\/\/thumbpress.co\/wp-content\/uploads\/2024\/08\/regenerate-thumbnail.webp\")
<\/figure>\n\n\n\n2. Regenerate Thumbnails Using WP CLI<\/h3>\n\n\n\n
Step 1: Access your server via SSH<\/h4>\n\n\n\n
\n
![\"Putty-configuration\"](\"https:\/\/thumbpress.co\/wp-content\/uploads\/2025\/02\/putty-configuration.png\")
<\/figure>\n\n\n\n![\"\"](\"https:\/\/thumbpress.co\/wp-content\/uploads\/2025\/02\/putty-ssh-key-1.png\")
<\/figure>\n\n\n\nStep 2: Navigate to your WordPress directory<\/h4>\n\n\n\n
cd \/var\/www\/html<\/strong><\/code><\/pre>\n\n\n\nStep 3: Run the thumbnail regeneration command<\/h4>\n\n\n\n
wp media regenerate --yes<\/strong><\/code><\/pre>\n\n\n\nwp media regenerate 123<\/strong><\/code><\/pre>\n\n\n\nStep 4: Wait for the process to complete<\/h4>\n\n\n\n
Step 5: Verify the changes<\/h4>\n\n\n\n
Alternative Manual Method (Re-uploading Images)<\/h2>\n\n\n\n
Final Words<\/h2>\n\n\n\n
Frequently Asked Questions (FAQs)<\/h2>\n\n\n\n
Q. How do I regenerate missing thumbnails in WordPress?<\/h3>\n\n\n\n
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Q. Is there any way to regenerate thumbnails in WordPress without plugins?<\/h3>\n\n\n\n
Q. Can I regenerate thumbnails with a lot of images?<\/h3>\n\n\n\n