pragmaticmates

Plugin adding custom badge for product. You are able to define CSS class for custom styling as well.
Feel free to add your pull request on <a href="http://github.com/pragmaticmates/woocommerce-simple-product-badge" rel="nofollow ugc">github</a>.

WooCommerce Simple Product Badge

Displays a custom text badge on WooCommerce products with custom CSS class if needed.

wp-centrics

Design your badge for WooCommerce for coming soon products easily, and choose which products will be shown!
Coming Soon Badges are 100% customizable, available on loop and/or product pages. Easy and professional: Upload your image, use predefined one or set the text and design the style, color and position in a friendly interface with live editor.
<h3>⭐ Text or image badges</h3>
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Text badge: set text, font-size, color, background, position etc.
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Image badge: choose between predefined images or upload your own. Then set the size and position
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<h3>🚀 Features</h3>
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Custom badge with full control over design: position, size, colors, font-weight, margins, paddings, etc.
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Super easy and friendly designer: all without writing one line of CSS, with visual live preview.
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Set the same or distinct badge for products loop / product page (or switch off the badge on one of them).
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Upload your own image if you prefer, or de-activate all plugin CSS generation and add your own.
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Simple switch on/off on product edition, will show/hide the coming soon badge over the product thumbnail.
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Highly compatible: works fine with most of WooCommerce themes, also Elementor and Divi.
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WYSIWYG badge editor: setup it easily in the admin side, with live preview.
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Coming Soon Badges for WooCommerce

Show a Coming Soon badge on WooCommerce products. Highly customisable, set it on the product loops and on the product page.

WooCommerce Simple Product Badge vs Coming Soon Badges for WooCommerce