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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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Customize Plus checkout with upsells, custom fields, content blocks, and payment and shipping rules. Built for Shopify Plus stores, Checkout Extensions Pro helps you customize checkout without coding. Show relevant upsells with AI recommendations and personalized discounts. Collect information with custom fields, and add trust badges, banners, and free shipping bars using checkout blocks. Apply conditional payment and shipping rules, and match checkout branding to your store. Add offers to post-purchase, Thank You, and Order Status pages. Our team can help you get started. Built for Shopify Plus stores, Checkout Extensions Pro helps you customize checkout without coding. Show relevant upsells with AI recommendations and personalized discounts. Collect information with custom fields, and add trust badges, banners, and free shipping bars using checkout blocks. Apply conditional payment and shipping rules, and match checkout branding to your store. Add offers to post-purchase, Thank You, and Order Status pages. Our team can help you get started. more Show checkout upsells with AI recommendations and personalized discounts. Collect delivery notes, gift messages, and more with custom checkout fields. Add checkout blocks with trust badges, banners, and free shipping bars. Hide, rename, or reorder payment and shipping methods using conditional rules. Match checkout to your brand and add post-purchase and Thank You page offers.

4.4(Reviews)

Show terms and conditions, return and refund policy on cart page so that there are less chargebacks You can see date and time when the customer has accepted terms. Customize Behaviour how you would like to show terms or refund policy: You can show it in new tab or popup Just install app and configure it in theme customization page. No theme code is modified by the app, it is using latest app blocks feature. You can see date and time when the customer has accepted terms. Customize Behaviour how you would like to show terms or refund policy: You can show it in new tab or popup Just install app and configure it in theme customization page. No theme code is modified by the app, it is using latest app blocks feature. more No Code Required: Store when the terms were accepted within Order page Pop Up Support: Use existing page or create new one and show in pop-up. Customization: Customise the behaviour easily with ultimate options in app. Side Cart Support: Support on cart and side cart page.

4.5(Reviews)

Run purchase-based sweepstakes, contests and giveaways. Automate entries and manage winners. Run purchase-based sweepstakes, giveaways, contests, and raffles with automatic entries per dollar spent. Set eligible products, product bonuses and scheduled multipliers. Show entry displays and customer totals with storefront widgets. Manage entrants, export audit/compliance/entry records and select winners. Add referral, membership and email rewards on eligible plans. Supports a no-purchase AMOE form with review and approval, plus white-glove setup. Run purchase-based sweepstakes, giveaways, contests, and raffles with automatic entries per dollar spent. Set eligible products, product bonuses and scheduled multipliers. Show entry displays and customer totals with storefront widgets. Manage entrants, export audit/compliance/entry records and select winners. Add referral, membership and email rewards on eligible plans. Supports a no-purchase AMOE form with review and approval, plus white-glove setup. more Automatically award sweepstakes entries from qualifying online and POS orders Set entries per dollar, product bonuses, multipliers and scheduled promotions Show sweepstakes/giveaway entry, customer totals and spending progress displays Reward referred purchases, memberships, codes and confirmed email signups Manage entrants, export records, select winners and contestant AMOE requests

5.0(Reviews)

Display images based on selected product variants. Declutter product page & elevate user experience. Shopify loads all the images of all the variants together on the product page. This slows down the site & makes it overcrowded. Say, you have a product with 15 variants & 6 images per variant. 15x6 = 90 product images will be loaded. Instead of showing all images, the Clever app displays images of the selected variant only. When shoppers select a different variant, the images of that selected variant are displayed automatically. Make product pages clean & professional! Shopify loads all the images of all the variants together on the product page. This slows down the site & makes it overcrowded. Say, you have a product with 15 variants & 6 images per variant. 15x6 = 90 product images will be loaded. Instead of showing all images, the Clever app displays images of the selected variant only. When shoppers select a different variant, the images of that selected variant are displayed automatically. Make product pages clean & professional! more A simple click based interface. No technical experience required. The variant images load fast & smooth providing a seamless user experience. Setup common images which will be displayed across all product variants. No variant image limit. Videos support. Supports most themes. Custom themes supported on request.

4.9(Reviews)

Add clickable video and image banners and schedule start/end dates for promos and hero banner. Add a clickable image banner, video banner, or mixed media banner to your store. Combine images and videos in the same hero banner, each fully clickable and linked to any product, collection or external URL. Schedule image banners and video banners to publish and unpublish automatically, perfect for for sales, launches or testing new creatives. Upload separate desktop and mobile images and videos for each banner. Add a clickable image banner, video banner, or mixed media banner to your store. Combine images and videos in the same hero banner, each fully clickable and linked to any product, collection or external URL. Schedule image banners and video banners to publish and unpublish automatically, perfect for for sales, launches or testing new creatives. Upload separate desktop and mobile images and videos for each banner. more Clickable Image & Video Banners Automated Banner Scheduling Mobile-friendly: Use different media for desktop and mobile shoppers Flexible Styling Options Split Banner Options With Mixed Media

3.4(Reviews)

Drive in-store sales with quality, design, and customization worthy of your brand Closeby makes it easy to create a store locator that perfectly matches your brand. It's how online customers become in-store sales for Shopify businesses with physical locations. Closeby makes it easy to create a store locator that perfectly matches your brand. It's how online customers become in-store sales for Shopify businesses with physical locations. more Configurable: 50+ settings Easy setup: no design or engineering experience required Extensive customization: select design options that best express your brand Beautiful UX: Mobile-friendly, feature-rich and easy to use for customers Integrated: Sync with Google Sheets and Google Analytics for teams

4.9(Reviews)

Let shoppers compare two images instantly with an interactive sliding view Common Ninja’s Before & After Slider app makes it simple to compare two images using an interactive slider. Use it to highlight transformations, showcase product differences, tell visual stories, or emphasize key features. Fully customizable and responsive, it offers vertical, horizontal, and angled sliders, adjustable image ratios, and more. Common Ninja’s Before & After Slider app makes it simple to compare two images using an interactive slider. Use it to highlight transformations, showcase product differences, tell visual stories, or emphasize key features. Fully customizable and responsive, it offers vertical, horizontal, and angled sliders, adjustable image ratios, and more. more Horizontal & vertical slider directions Create unlimited sliders for any need Multiple skins & layouts with ready-made templates Rich styling options with full design customization Fully responsive for desktop, tablet, and mobile

5.0(Reviews)

Create fully customizable, mobile-friendly comparison tables for your store Comparing features between multiple products, plans, or offers is a key step in every shopper’s decision process. With Comparison Tables by Common Ninja, you can create clean, responsive tables that present features, specs, and prices side-by-side. Customize the design to match your store, highlight key differences, add call-to-action buttons, and guide customers toward the right choice quickly and confidently. Comparing features between multiple products, plans, or offers is a key step in every shopper’s decision process. With Comparison Tables by Common Ninja, you can create clean, responsive tables that present features, specs, and prices side-by-side. Customize the design to match your store, highlight key differences, add call-to-action buttons, and guide customers toward the right choice quickly and confidently. more Advanced search & sort to help customers quickly find and compare key details. Floating headers keep column and row titles visible while scrolling long tables. Pagination for easy navigation through long, data-rich comparison tables. Import CSV files instantly and turn them into ready-to-use comparison tables. Fully responsive design that adapts beautifully to desktop, tablet, and mobile.

5.0(Reviews)

Add a countdown timer bar to establish urgency & boost conversions The Common Ninja Countdown Bar app is a powerful digital marketing tool that can be used to convert users into paying customers. With it, you can inform your users of ongoing sales, add a sense of urgency and use their fear of missing out to increase sales. The app is easy to use, requires no coding knowledge, and comes with full customization options. It is fully responsive and features over 20 beautiful skins, extensive clock customization options, a sticky bar and more. The Common Ninja Countdown Bar app is a powerful digital marketing tool that can be used to convert users into paying customers. With it, you can inform your users of ongoing sales, add a sense of urgency and use their fear of missing out to increase sales. The app is easy to use, requires no coding knowledge, and comes with full customization options. It is fully responsive and features over 20 beautiful skins, extensive clock customization options, a sticky bar and more. more Automatic timer hiding at sale’s end Sticky Bar - set position at the top or bottom of your store Over 20 Beautiful Skins A simple user interface with easy content management features. Fully responsive and looks great on any device — desktop or mobile.

0.0(Reviews)

Add interactive hotspots to images to showcase product details and drive engagement Common Ninja’s Image Hotspot app lets you place clickable, interactive points on any image to share details, links, and calls to action. Highlight product features, provide extra information, or guide visitors visually. With a fully customizable, mobile-friendly design and an easy drag-and-drop editor, you can match your brand and create engaging experiences that boost conversions - without touching a line of code. Common Ninja’s Image Hotspot app lets you place clickable, interactive points on any image to share details, links, and calls to action. Highlight product features, provide extra information, or guide visitors visually. With a fully customizable, mobile-friendly design and an easy drag-and-drop editor, you can match your brand and create engaging experiences that boost conversions - without touching a line of code. more Add clickable hotspots to any image Show text, links, or product info in a popup Customize colors, icons, and animations Works on desktop and mobile devices Easy drag-and-drop editor, no coding needed

1.5(Reviews)

Showcase trusted partners and clients with a logo slider Showcase the logos of your client and partners using a fully customizable and responsive logo slider or grid. Whether you want to highlight social proof, boost credibility, or simply add visual flair to your store, this app helps you do it beautifully. Choose between a carousel or grid layout, customize the style to match your brand, and apply hover effects, spacing controls, and clickable links. A well-placed logo showcase builds trust and shows professionalism! Showcase the logos of your client and partners using a fully customizable and responsive logo slider or grid. Whether you want to highlight social proof, boost credibility, or simply add visual flair to your store, this app helps you do it beautifully. Choose between a carousel or grid layout, customize the style to match your brand, and apply hover effects, spacing controls, and clickable links. A well-placed logo showcase builds trust and shows professionalism! more Hover Effects - pause on hover and add various effects like scale and shadow Set the carousel direction & speed. Clickable Logos - add links to the logos. Two Layout Options - carousel (slider) and a grid. Rich styling options with fully customizable design features.

5.0(Reviews)

Sell your events, classes, workshops, courses, activities, appointments, seminars, tours and more. CoAttend simplifies event management in Shopify admin using our app. Efficiently handle orders, bookings, and notifications with a user-friendly interface. Enable customers to add multiple attendees on your Shopify store. Let customers join a waitlist when events are full and get email alerts when spots open. Purchases occur via Shopify checkout for seamless experience. Supports English, Spanish, French, German, Portuguese, Italian, Swedish, Dutch, Japanese, Hindi, Chinese and more languages. CoAttend simplifies event management in Shopify admin using our app. Efficiently handle orders, bookings, and notifications with a user-friendly interface. Enable customers to add multiple attendees on your Shopify store. Let customers join a waitlist when events are full and get email alerts when spots open. Purchases occur via Shopify checkout for seamless experience. Supports English, Spanish, French, German, Portuguese, Italian, Swedish, Dutch, Japanese, Hindi, Chinese and more languages. more Customers can choose a date/time from the calendar. Multiple attendees per booking. Unlimited bookings in all our plans. Send automatic email notifications before and after an event. Events and bookings sync automatically to your Google Calendar. Allow customers to cancel their bookings.

2.9(Reviews)

Boost Your Sales with COD Order Form! Add Discounts, Upsells & More to Maximize Sales! Supercharge your cash-on-delivery store with CodMonster! Enjoy a fast shopping experience with our 1-click customizable COD form. Boost your Average Order Value (AOV) through smart Upsell and Cross-Sell offers while recovering abandoned carts. Track ad performance on Facebook, TikTok, and Google with multi-pixel tracking. Easily integrate with partners like CODPartner and CODNetwork. Take control of your sales and watch your business grow with CodMonster’s powerful, user-friendly tools today! Supercharge your cash-on-delivery store with CodMonster! Enjoy a fast shopping experience with our 1-click customizable COD form. Boost your Average Order Value (AOV) through smart Upsell and Cross-Sell offers while recovering abandoned carts. Track ad performance on Facebook, TikTok, and Google with multi-pixel tracking. Easily integrate with partners like CODPartner and CODNetwork. Take control of your sales and watch your business grow with CodMonster’s powerful, user-friendly tools today! more Customizable Popup/Embedded Form: Create flexible COD forms with field control. Upsell & Cross-Sell Offers: Boost AOV with one-click upsells and quantity offers Multi-Pixel Tracking: Track ads on Facebook, TikTok, Snapchat, and Google. Google Sheets Integration: Sync orders with Google Sheets, Shopify, and apps. Order Limits & Restrictions: Limit orders and restrict form display by country.

4.0(Reviews)

Sticky, Scrolling & Animated Announcement Bar for Flash Sales & Promotions Add powerful announcement bars to your store in minutes — no code needed. Choose from sticky headers, smooth scrolling marquees, rotating carousels, or animated sliding bars. Display flash sale countdowns, shipping offers, and promo codes exactly where shoppers look. Target by location, page, or schedule to show the right message at the right time. Each bar includes a customizable call-to-action button to drive clicks and conversions. Works perfectly on mobile and desktop. Add powerful announcement bars to your store in minutes — no code needed. Choose from sticky headers, smooth scrolling marquees, rotating carousels, or animated sliding bars. Display flash sale countdowns, shipping offers, and promo codes exactly where shoppers look. Target by location, page, or schedule to show the right message at the right time. Each bar includes a customizable call-to-action button to drive clicks and conversions. Works perfectly on mobile and desktop. more Sticky & Scrolling Bars: Keep promos visible with marquee or fixed header bars Rotating Carousel: Cycle multiple offers with smooth animated transitions Geo & Page Targeting: Show location-based offers on specific store pages Scheduling & CTA Button: Set sale dates and drive clicks with action buttons Mobile Responsive & Multi-Bar: Run multiple bars, perfectly on every device

0.0(Reviews)

Collect product details, schedule dates, and price options before checkout COLY helps with adding required product forms to selected Shopify products. Customers fill in the details before checkout, and the answers follow the order so fulfillment teams can pack, personalize, export, price, and support the order with fewer follow-up messages. COLY helps with adding required product forms to selected Shopify products. Customers fill in the details before checkout, and the answers follow the order so fulfillment teams can pack, personalize, export, price, and support the order with fewer follow-up messages. more 12 field types: Textfield, select, date picker, radio box, checkbox & more Schedules: Date rules for delivery, pickup & appointments Display conditions: Display on selected product by product, vendor, type and tag Export order line properties to CSV or XLSX excel file Checkout rules: Collect extra service fees, tax & dynamic pricing

5.0(Reviews)

Stop sending paid traffic to PDPs. Build dedicated checkout funnels that convert. Sending paid social traffic to your PDP or homepage limits conversion potential. Comet lets you build campaign-specific checkout-stores — dedicated landing pages, bespoke product pages & checkout flows that match your campaign. Products, inventory, and orders sync with Shopify automatically. Each store gets its own URL and tracking. Brands using Comet see major improvements in CAC and conversion rates. Build your first funnel in minutes with drag-and-drop or let AI generate it from your ad. Sending paid social traffic to your PDP or homepage limits conversion potential. Comet lets you build campaign-specific checkout-stores — dedicated landing pages, bespoke product pages & checkout flows that match your campaign. Products, inventory, and orders sync with Shopify automatically. Each store gets its own URL and tracking. Brands using Comet see major improvements in CAC and conversion rates. Build your first funnel in minutes with drag-and-drop or let AI generate it from your ad. more Stop sending ad traffic to your homepage. Give each campaign its own funnel. Products, inventory, and orders sync automatically with your Shopify store. A/B test page variants and route traffic to the winner automatically. Built-in Meta and TikTok pixel tracking. See conversions per campaign.

5.0(Reviews)

Create a friendly FAQ page with a simple, feature-rich editor. The Common Ninja FAQ Page is a friendly and feature-rich editor that allows you to create FAQ (Frequently Asked Questions), a list of answers to common questions surrounding a product, service, or business, and to easily embed it in your store. Easily change the order of questions, and add navigation features. Use Drag & Drop reordering, group FAQ by Categories. and enable a search field to help your customer find answers. Select a stunning template to give your FAQ section a stunning look. The Common Ninja FAQ Page is a friendly and feature-rich editor that allows you to create FAQ (Frequently Asked Questions), a list of answers to common questions surrounding a product, service, or business, and to easily embed it in your store. Easily change the order of questions, and add navigation features. Use Drag & Drop reordering, group FAQ by Categories. and enable a search field to help your customer find answers. Select a stunning template to give your FAQ section a stunning look. more Add a search option that makes it easy to look for questions. Divide the questions into separate categories for a better navigation experience Multiple Skins & Layouts: Lots of beautifully designed templates to choose from. Rich styling options with fully customizable design features. A simple user interface with easy content management features.

0.0(Reviews)

Create stunning pricing tables that will look great and increase conversions The Pricing Tables app enables you to create stunning pricing tables that will look great and increase conversions. With it, you can improve user experience by providing customers with all the information they might require and increase conversions by enabling a quick checkout once they’ve made their decision. The app is easy to use, requires no coding knowledge, and comes with full customization options. It is fully responsive and features a large selection of skins. The Pricing Tables app enables you to create stunning pricing tables that will look great and increase conversions. With it, you can improve user experience by providing customers with all the information they might require and increase conversions by enabling a quick checkout once they’ve made their decision. The app is easy to use, requires no coding knowledge, and comes with full customization options. It is fully responsive and features a large selection of skins. more An animated mode that allows you to add animation to your static page. Use Billing Cycles to display monthly and annual prices A customizable ribbon to highlight desired plan. Two mobile behavior modes — Flexible and Scroll. Multiple Skins & Layouts: Lots of beautifully designed templates to choose from.

0.0(Reviews)

Banners, Bars, Notifications, Promotions, Announcements, Events ... It's never been easier. Keeping your customers engaged and informed with new business updates and special events is a key element of managing customer relationships. Showing a banner on your website is a simple and effective way of doing this. And Como Banner can help you get it done in seconds. It's never been easier. Let promotions reach your visitors. Convert them into paying customers and generate more sales. Fully customizable to fit your theme. Works perfectly across different screens. Easy to use. Keeping your customers engaged and informed with new business updates and special events is a key element of managing customer relationships. Showing a banner on your website is a simple and effective way of doing this. And Como Banner can help you get it done in seconds. It's never been easier. Let promotions reach your visitors. Convert them into paying customers and generate more sales. Fully customizable to fit your theme. Works perfectly across different screens. Easy to use. more Setup your banners by a few clicks. Create as many as you want. Customize everything on the banner to fit your store theme. Choose how and where to display your banners. Fully responsive, optimized for all screen sizes, desktop, tablet, and mobile. Add one or two action buttons as needed. Keep showing or make it closable.

0.0(Reviews)

Show real transformations with an interactive Before-After Image Slider Show visual proof with the Image Comparison Shopify slider. Let shoppers drag to highlight skincare with glowing after, fitness with toned results, or décor with styled spaces. By making results visible and interactive, this Before After Image App Shopify helps build confidence, increase conversions, and reduce purchase hesitation. Perfect for showcasing product transformations with an engaging comparison slider Shopify experience that keeps shoppers informed and encourages more sales. Show visual proof with the Image Comparison Shopify slider. Let shoppers drag to highlight skincare with glowing after, fitness with toned results, or décor with styled spaces. By making results visible and interactive, this Before After Image App Shopify helps build confidence, increase conversions, and reduce purchase hesitation. Perfect for showcasing product transformations with an engaging comparison slider Shopify experience that keeps shoppers informed and encourages more sales. more Show visual proof with smooth, interactive before and after sliders Seamless app block integration in the Shopify theme editor Fully customizable sliders to match your store’s brand and style Responsive design for flawless viewing on mobile and desktop Easy setup with no coding or technical expertise required

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.