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Custom CSS Shopify Apps

Discover the best Custom CSS apps for your Shopify store in 2026. Compare features, pricing, and reviews to find the perfect solution.

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We've analyzed thousands of custom css apps to identify the top performers based on ratings and install counts.

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Help your customers to buy your most popular products of all time! Popular Products on Your Store lets you display the image slider, making it easy for customers to add them to their cart with just one click. This app is easy to install and configure. The app also keeps track of your most popular products. You're able to loop or auto play the images and control the border, colors, and other styling aspects. Customers can easily add desired items to their cart with just one click by using the "Add to Cart" button on each product and from the Cart Page too. Popular Products on Your Store lets you display the image slider, making it easy for customers to add them to their cart with just one click. This app is easy to install and configure. The app also keeps track of your most popular products. You're able to loop or auto play the images and control the border, colors, and other styling aspects. Customers can easily add desired items to their cart with just one click by using the "Add to Cart" button on each product and from the Cart Page too. more Allows customers to navigate through the most popular products in a slider view. Track Most Viewed & Popular Products with the help of graphical reports. It will help customers to find the most viewed and famous products. Choose whether to show the slider on other page / popup for product description. You can choose whether to have the image slider autoplay or loop continuously.

4.0(Reviews)

Zestard Product Matrix makes it easy to order multiple quantities of products at once / bulk order. Zestard Product Matrix is especially useful for wholesalers and B2B (Business To Business). It allows ordering multiple quantities of products at once, even when there are multiple product variants, it displays product table (matrix) on the page in such a way that it becomes very easy to order multiple quantities of a product with different variants. The app allows admin to customize the Matrix view to match with their brand and allows to manage all settings per product from the app back end. Zestard Product Matrix is especially useful for wholesalers and B2B (Business To Business). It allows ordering multiple quantities of products at once, even when there are multiple product variants, it displays product table (matrix) on the page in such a way that it becomes very easy to order multiple quantities of a product with different variants. The app allows admin to customize the Matrix view to match with their brand and allows to manage all settings per product from the app back end. more Buyers can compare various product variants side-by-side on the product page. Customers can order multiple quantities at once / bulk order. Manage quantity & choose whether to allow out of stock products to order or not. Manage minimum quantity validation on the Product & Cart Page per product. Price management/show default price / individual price for each product variant.

5.0(Reviews)

Display affordable pricing options that drive sales results with Zip on-site messaging The Zip On-Site Messaging App helps drive sales by showing pay in installments pricing in key spots such as your product pages, cart, and minicart. Available to Zip merchants in the US, AU, and NZ, it highlights Zip as an affordable option for your customers. This app requires a separate Zip payment gateway integration to enable Zip at checkout and is only available to Zip merchant partners. To see the different ways Zip can appear click on View Demo Store in the listing. (password Zip12345) The Zip On-Site Messaging App helps drive sales by showing pay in installments pricing in key spots such as your product pages, cart, and minicart. Available to Zip merchants in the US, AU, and NZ, it highlights Zip as an affordable option for your customers. This app requires a separate Zip payment gateway integration to enable Zip at checkout and is only available to Zip merchant partners. To see the different ways Zip can appear click on View Demo Store in the listing. (password Zip12345) more Easily add the Zip widget to your PDP, cart, and minicart Seamless site integration with inheriting font face, alignment and colors. Use in combination with the Zip gateway for easy pay-in-4 purchases.

1.0(Reviews)

Create Smarter Sales Funnels, Landing Pages & Product Pages — No Designer Or Developer Required Build your next winning campaign faster with Zipify Pages. It's packed with AI-powered features and marketing templates built by store operators, many battle-tested on our own store. Customize your Shopify product pages, blogs, and homepages, set up bundles to boost conversion rates and capture lost revenue. Zipify Pages is fully optimized for mobile with built-in split testing to maximize results. Get everything you need to launch better offers, convert more leads, and make more sales! Build your next winning campaign faster with Zipify Pages. It's packed with AI-powered features and marketing templates built by store operators, many battle-tested on our own store. Customize your Shopify product pages, blogs, and homepages, set up bundles to boost conversion rates and capture lost revenue. Zipify Pages is fully optimized for mobile with built-in split testing to maximize results. Get everything you need to launch better offers, convert more leads, and make more sales! more Build product, home, landing pages, collections & more Direct-Response Templates: Proven templates, battle-tested on our own store Global Designs: Edit every page at once with blocks & styles that sync instantly Universal Product Pages: Publish one product page for multiple SKUs to save time Legendary Support: Get help from real ecom experts who run stores at scale

4.7(Reviews)

Sell more with Fast Checkout, Always Visible Sticky Bar & Sticky Add To Cart button Increase your sales with always visible sticky add to cart bar, making it easy for your customers to purchase. Skip the cart page and Send your customers straight to checkout and reduce abandoned carts. Mobile awesome design that fits with any mobile device. Integration with multiple slide carts, slide animation, tracks all click events to understand how much value is generated by the app. Store-specific customizations to perfectly fit your store. Full integration with Dawn and Online store 2. Increase your sales with always visible sticky add to cart bar, making it easy for your customers to purchase. Skip the cart page and Send your customers straight to checkout and reduce abandoned carts. Mobile awesome design that fits with any mobile device. Integration with multiple slide carts, slide animation, tracks all click events to understand how much value is generated by the app. Store-specific customizations to perfectly fit your store. Full integration with Dawn and Online store 2. more Fast Checkout to send your customer straight to the checkout page with one click Always visible Sticky Add To Cart Button to make sure that you won't miss a sale Reduce cart abandonment rate and generate more sales Support Shopify Multi Currencies and all currency conversion apps Full Multi-Language Support including translations

5.0(Reviews)

Set up Volume Discounts, Quantity Breaks & Tiered Pricing with AI Bundles and Cross-Sell. Boost AOV with Volume Discounts and Quantity Breaks using automatic Tiered Pricing on products and variants. Create Bundles, Mix & Match, and Build a Box, then attach AI Cross Sell offers on product pages and in the cart drawer. Add BOGO, bulk discounts, and free shipping thresholds to drive bigger baskets. Works with latest themes and native cart for effortless setup. Optimized for fast install, multi‑currency, multi‑language, and Shopify Checkout. Boost AOV with Volume Discounts and Quantity Breaks using automatic Tiered Pricing on products and variants. Create Bundles, Mix & Match, and Build a Box, then attach AI Cross Sell offers on product pages and in the cart drawer. Add BOGO, bulk discounts, and free shipping thresholds to drive bigger baskets. Works with latest themes and native cart for effortless setup. Optimized for fast install, multi‑currency, multi‑language, and Shopify Checkout. more Volume Discounts & Quantity Breaks with Tiered Pricing AI Cross Sell on product pages and native cart drawer Bundles, Mix & Match, and Build a Box with discount rules BOGO, bulk discount tiers, and free shipping thresholds Multi-currency, multi-language, theme compatible, fast setup

4.9(Reviews)

Highlight offers, updates, or free shipping with customizable announcement bars that fit your brand Zotabox Announcement Bar lets you display messages like promotions, free shipping, or store updates at the top of your store. The tool is simple to use, works instantly with Shopify, and requires no coding. You can easily match the bar to your brand’s style and publish it in minutes. For more advanced settings or customization, our team is happy to assist and guide you through setup when needed. Zotabox Announcement Bar lets you display messages like promotions, free shipping, or store updates at the top of your store. The tool is simple to use, works instantly with Shopify, and requires no coding. You can easily match the bar to your brand’s style and publish it in minutes. For more advanced settings or customization, our team is happy to assist and guide you through setup when needed. more Show a customizable bar at the top of your store to grab attention Promote free shipping, limited deals, or store-wide announcements Match your announcement bar with your store’s colors and branding Easily create and publish a bar within minutes, no coding needed Reach out for help with advanced settings or custom requests

5.0(Reviews)

Boost Your Sales With Flash Countdown Timer Take your sales strategy to the next level with the Flash Countdown Timer app. By creating a sense of Urgency, our app encourages customers to make Quick Purchasing decisions, helping you maximize sales during promotions and limited-time offers. Easy to set up and integrate with your store, the Flash Countdown Timer is designed to enhance the shopping experience and drive conversions. Don't miss out on the opportunity to increase your revenue—start using the Flash Countdown Timer today! Take your sales strategy to the next level with the Flash Countdown Timer app. By creating a sense of Urgency, our app encourages customers to make Quick Purchasing decisions, helping you maximize sales during promotions and limited-time offers. Easy to set up and integrate with your store, the Flash Countdown Timer is designed to enhance the shopping experience and drive conversions. Don't miss out on the opportunity to increase your revenue—start using the Flash Countdown Timer today! more Increase Sales: By setting an announcement bar timer (top bar or bottom). Set Any Schedule: Daily recurring, fixed minute or to-date Localization: Set geolocation to localize countdown timers Customization: Customize text, colors, type, placements

0.0(Reviews)

Keep users engaged on your site by displaying related products slider on the blog page & vise-versa. The app enables you to easily customize your blog posts to display relevant products from your store & relevant blogs on products. This not only helps improve your site's SEO and internal linking, but also makes it quicker and easier for customers to find the products they're looking for. The app is a great way to keep your readers engaged and increase your chances of converting them into customers, boosting conversions by providing relevant slider content based on an existing blog or products. The app enables you to easily customize your blog posts to display relevant products from your store & relevant blogs on products. This not only helps improve your site's SEO and internal linking, but also makes it quicker and easier for customers to find the products they're looking for. The app is a great way to keep your readers engaged and increase your chances of converting them into customers, boosting conversions by providing relevant slider content based on an existing blog or products. more Help your readers find the perfect product they're looking for. Cultivate trust with buyers by only recommending products that you believe in. Easily increase your revenue by displaying relevant products on your blog Pages. Caption your blog posts with ease, and make a better impression on visitors. Select the features you want from the Application settings to match your store.

4.2(Reviews)

ブランドの世界観を演出!カスタマイズ性豊かなスライドショーを簡単設置できます あなたのテーマに、高カスタマイズ性スライドショーを埋め込み! 本アプリを使用することで、高いカスタマイズ性のスライドショーをあなたのストアに導入できます。 あなたのストアのデザインにあったスライドショーを導入して、ブランドを演出しましょう。 あなたのテーマに、高カスタマイズ性スライドショーを埋め込み! 本アプリを使用することで、高いカスタマイズ性のスライドショーをあなたのストアに導入できます。 あなたのストアのデザインにあったスライドショーを導入して、ブランドを演出しましょう。 more 必要な操作は、アプリをインストールして使用したいページでアプリブロックを追加するだけ! コード編集は一切必要ないので、どなたでも簡単にご利用いただけます。 スライドショーのインジケーターや左右の矢印のデザイン、アニメーションの種類や余白など幅広くカスタマイズすることができます。 インストール後、30秒で設定完了! 『有効化』ボタンをワンクリックするだけで、簡単に高カスタマイズ性のスライドショーを導入できます。 本アプリは Online Store 2.0 にのみ対応しております。 テーマ内のコードや他のアプリとの干渉も少なく、安全にアプリをご利用できます。

0.0(Reviews)

お客様の「もう1個買おう」を引き出す、まとめ買い割引アプリです。割引テーブルの表示と自動割引で、追加購入を自然に促進します。 プラスアルファは、まとめ買い割引とセット販売を提供する日本語対応アプリです。 数量割引では、購入数量に応じた段階的な割引を設定できます。例えば「3個で10%OFF、5個で15%OFF、10個で20%OFF」といったルールを作成し、商品ページに割引 ーブルとして表示します。お客様がティアを選択すると、カートで自動的に割引が適用されます。 セット販売では、複数の商品を組み合わせたバンドルを作成できます。セット内容と割引価格を商品ページに表示し、お客様がセットをカートに追加できます。 割引ルールは商品単位またはコレクション単位で適用対象を指定できます。管理画面はすべて日本語で、直感的に設定できます。 プラスアルファは、まとめ買い割引とセット販売を提供する日本語対応アプリです。 数量割引では、購入数量に応じた段階的な割引を設定できます。例えば「3個で10%OFF、5個で15%OFF、10個で20%OFF」といったルールを作成し、商品ページに割引 ーブルとして表示します。お客様がティアを選択すると、カートで自動的に割引が適用されます。 セット販売では、複数の商品を組み合わせたバンドルを作成できます。セット内容と割引価格を商品ページに表示し、お客様がセットをカートに追加できます。 割引ルールは商品単位またはコレクション単位で適用対象を指定できます。管理画面はすべて日本語で、直感的に設定できます。 more カートでの自動割引適用 割引金額の更新・取り消しを自動化 割引UIのワンタッチ作成 管理画面からストア表示まで、すべて日本語で利用できます。

0.0(Reviews)

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About Custom CSS Apps for Shopify

Custom CSS apps are essential tools for Shopify merchants looking to enhance their store's functionality and improve customer experience. These specialized applications help store owners streamline operations, increase sales, and provide better service to their customers.

When choosing a custom css app for your Shopify store, consider factors such as features, pricing, customer support, and compatibility with your theme and other apps. Reading reviews from other merchants can also provide valuable insights into the app's performance and reliability.

The apps listed on this page represent some of the best custom css solutions available in the Shopify App Store. Each has been selected based on its functionality, user ratings, and overall value for Shopify merchants.