Display Instagram & TikTok feeds w/ shoppable galleries, UGC, & Reels to build trust & drive sales. MP Instagram Feed - Instafeed lets you showcase Instagram feed and TikTok feed as shoppable social proof on your Shopify store. Turn posts, Reels, Stories, and UGC into an Instagram gallery that shoppers can buy from. Choose grid, slider, highlight, coverflow, or masonry layouts, auto-sync content, tag products, support multiple accounts, and track performance with built-in analytics. Easy setup, no coding required—designed to support trust, engagement, and sales. MP Instagram Feed - Instafeed lets you showcase Instagram feed and TikTok feed as shoppable social proof on your Shopify store. Turn posts, Reels, Stories, and UGC into an Instagram gallery that shoppers can buy from. Choose grid, slider, highlight, coverflow, or masonry layouts, auto-sync content, tag products, support multiple accounts, and track performance with built-in analytics. Easy setup, no coding required—designed to support trust, engagement, and sales. more Shoppable Instagram & TikTok feeds – Turn posts, Reels & videos into sales UGC & Reels support – Build trust with real customer content Auto-sync content – Always show your latest posts automatically Product tagging – Let shoppers buy directly from social feeds Multiple layouts & analytics – Grid, slider layouts with performance tracking
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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Reduce returns & boost conversions with customizable size charts & smart size recommendations Sizing issues cause lost sales and high return rates for apparel brands. When shoppers are unsure of their size, they may abandon their cart or choose the wrong fit. MP Size Chart & Size Guide solves this with clear, customizable charts, auto unit conversion, size chart reminders and smart fit recommendations. Our exclusive sizing page displays all charts on a single page to boost confidence and sales. Switching from another app? We’re ready to migrate your existing data—contact us for details. Sizing issues cause lost sales and high return rates for apparel brands. When shoppers are unsure of their size, they may abandon their cart or choose the wrong fit. MP Size Chart & Size Guide solves this with clear, customizable charts, auto unit conversion, size chart reminders and smart fit recommendations. Our exclusive sizing page displays all charts on a single page to boost confidence and sales. Switching from another app? We’re ready to migrate your existing data—contact us for details. more 23+ ready templates – Create size charts in minutes, no coding needed Fully customizable design – Adjust colors, fonts, layouts, and media easily Size recommendation – Reduce returns with personalized fit suggestions Bulk import & auto unit conversion – Fast setup for global sizing Sizing page – Display all size charts in one auto-synced, dedicated page
Add multiple product options with price addons & conditional logic with zero knowledge of coding. Most e-commerce products require data input from the customer before they make their purchase. These data inputs may be anything from shoe sizes to shirt colors. Certain customizable products also need extra information from the customer, like a name or logo to print. This app allows you to add unlimited options to your Shopify store. You can then see the collected data in the order in admin! Field types include: Short text box, Long text box, Radio buttons, Dropdown, Image upload & Datepicker. Most e-commerce products require data input from the customer before they make their purchase. These data inputs may be anything from shoe sizes to shirt colors. Certain customizable products also need extra information from the customer, like a name or logo to print. This app allows you to add unlimited options to your Shopify store. You can then see the collected data in the order in admin! Field types include: Short text box, Long text box, Radio buttons, Dropdown, Image upload & Datepicker. more Create the fields based on tag, vendor, type, URL, and handle. Create different fields for different products based on your choice. Field type: Short & Long text, Radio button, Dropdown, Image, Datepicker, etc. Price add-ons feature available for per field/option Set the class name, placeholder and default value without any hassle.
5-in-1 Sticky Add to Cart App to Improve Sales, Conversion, AOV, & Reduce cart abandonment. MS Sticky Add to Cart is designed to help increase traffic conversion rates, AOV, and sales by making the add-to-cart and Buy now buttons super easy for customers to find and use. Sticky add to cart allows shoppers around the site to quickly add products to their cart and go through checkout without friction. The Cart Booster bar is easy to find and helps reduce cart abandonment. The button animations are attention-grabbing and help customers skip cart straight to checkout MS Sticky Add to Cart is designed to help increase traffic conversion rates, AOV, and sales by making the add-to-cart and Buy now buttons super easy for customers to find and use. Sticky add to cart allows shoppers around the site to quickly add products to their cart and go through checkout without friction. The Cart Booster bar is easy to find and helps reduce cart abandonment. The button animations are attention-grabbing and help customers skip cart straight to checkout more Sticky Add to Cart and Buy Now button on Product page and collection page A Floating Cart Booster - customer can easily access cart from any pages Sticky Checkout Bar on cart for Quick & faster checkout Mini Cart Icon on Collection Page for Instant checkout One Click Checkout like Amazon for Faster order placing
Easily present complimentary products in a strategic, step-by-step way. MultiStep Purchase allows you to easily showcase products in a step-by-step way. Customers experience tailored shopping routes that mirror the personal touch of an in-store presentation. Whether you’re outfitting customers with the latest fashion or matching them with an assortment of tech gadgets, this novel approach is designed to drive sales by grouping and upselling complementary items. Setting up MultiStep in your store is simple, and our support team is ready to assist if you need help. MultiStep Purchase allows you to easily showcase products in a step-by-step way. Customers experience tailored shopping routes that mirror the personal touch of an in-store presentation. Whether you’re outfitting customers with the latest fashion or matching them with an assortment of tech gadgets, this novel approach is designed to drive sales by grouping and upselling complementary items. Setting up MultiStep in your store is simple, and our support team is ready to assist if you need help. more Show products in customized steps. Create a customer's product journey, or as an upsell popup on product page. Design multiple paths, each with customizable steps of products. No coding required. Simply create steps of products from the Shopify admin. We’re happy to assist with personal support.
Set Cart Goals with a Free Shipping Progress Bar, Cart Upsell Products, Get Higher AOV and Sales. Increase your average order value with the MVR Free Shipping Bar! Set a goal and show the progress bar to your customers! Offer Free Shipping, Discount, or a Gift once they reach the goal. Customers love the feeling of completion and the MVR free shipping bar does just that! It boosts your sales just by adding it to your product or cart page. Choose any of the high-converting designs or create your own! It’s so easy to set up! Don’t wait, install now! Increase your average order value with the MVR Free Shipping Bar! Set a goal and show the progress bar to your customers! Offer Free Shipping, Discount, or a Gift once they reach the goal. Customers love the feeling of completion and the MVR free shipping bar does just that! It boosts your sales just by adding it to your product or cart page. Choose any of the high-converting designs or create your own! It’s so easy to set up! Don’t wait, install now! more Set progress bar on product or cart page Multi-currency and goal customization Upsell products and unlimited views Full progress bar design customisation to fit your brand Developer support
AIO Menu Builder for Mobile + Desktop: Sticky Navbar, Tab bar, Mega Menu, Slide Menu & Grid Menu.. Easily add or replace any Type of Menu Imaginable anywhere on your website. Enhance the User Experience and Guide visitors towards your Business Goals with Navi+ | All-In-One Navigation Toolset—Feature-Rich, Highly Customizable, Easy-To-Use, and Lightning-Fast. Showcase Professionalism, build Credibility, and boost your Business while Cutting Costs on complex themes, native conversion, support tools, and SEO optimization. Support Bottom Bar, Tab bar, Mega Menu, Slide Menu & Dropdown & Grid Menu. Easily add or replace any Type of Menu Imaginable anywhere on your website. Enhance the User Experience and Guide visitors towards your Business Goals with Navi+ | All-In-One Navigation Toolset—Feature-Rich, Highly Customizable, Easy-To-Use, and Lightning-Fast. Showcase Professionalism, build Credibility, and boost your Business while Cutting Costs on complex themes, native conversion, support tools, and SEO optimization. Support Bottom Bar, Tab bar, Mega Menu, Slide Menu & Dropdown & Grid Menu. more Support 50+ layouts with Pre-Designed templates, for both: Mobile & Desktop. Make store Professional and User-Friendly like a native app in just a few clicks Extremely Flexible, no design or technical skills needed, just Drag and Drop. Premium SLA with ultra-fast speed & responsiveness via CDN edge in 6 continents. No conflicts due to the use of native HTML5/CSS3 Without Libraries.
Improve mobile shopping with a bottom menu bar tailored to your store layout for better navigation Mobile Menu Bar helps visitors explore your store with a fixed bottom menu built for mobile users. You can fully customize icons, labels, and links to match your layout, colors, and brand style. Customers can quickly access collections, product pages, search, cart, or account—reducing friction and increasing conversions. Make key pages easier to reach, highlight offers, and enhance the mobile shopping journey with a smooth, on-brand, high-performing mobile experience. Mobile Menu Bar helps visitors explore your store with a fixed bottom menu built for mobile users. You can fully customize icons, labels, and links to match your layout, colors, and brand style. Customers can quickly access collections, product pages, search, cart, or account—reducing friction and increasing conversions. Make key pages easier to reach, highlight offers, and enhance the mobile shopping journey with a smooth, on-brand, high-performing mobile experience. more Create unlimited menus and submenus with custom icons and brand colors Show cart counter, add badges, and highlight collections with image links Translate all menu labels with built-in support for multiple languages Ease of use, Speed of navigation, Recall rate, User experience, Readability Customize menu style with CSS and track performance with built-in analytics
Add different header menus to different pages or based on customer tag. Create unique, targeted navigation menus for logged-in users or specific pages. Display specific navigation menu to VIP customers, wholesale buyers, first-time purchasers, or any targeted segment. Improve satisfaction, reduce support, and drive repeat purchases by providing highly relevant, personalized navigation. Easy to customized and add personalized header menu for different pages or collections. Create unique, targeted navigation menus for logged-in users or specific pages. Display specific navigation menu to VIP customers, wholesale buyers, first-time purchasers, or any targeted segment. Improve satisfaction, reduce support, and drive repeat purchases by providing highly relevant, personalized navigation. Easy to customized and add personalized header menu for different pages or collections. more Add different header menus to different pages Show different header menus to different customers based on customer tag Simplify navigation & increase loyalty. Works directly in Customizer
Create forms with our form builder, enhancing your website's functionality and user experience! E-commerce merchants understand that information is power, and our form builder gives you exactly that. It offers an easy way to create engaging, customizable forms for your customers. This could be anything from detailed customer surveys to simple contact forms. The data you collect helps you make informed business decisions and tailors your offerings to suit your customer's needs. Optimize your business operations, improve user interaction, and make data-driven decisions with Nerdy Form! E-commerce merchants understand that information is power, and our form builder gives you exactly that. It offers an easy way to create engaging, customizable forms for your customers. This could be anything from detailed customer surveys to simple contact forms. The data you collect helps you make informed business decisions and tailors your offerings to suit your customer's needs. Optimize your business operations, improve user interaction, and make data-driven decisions with Nerdy Form! more Customize email notifications and auto responder email when a form is submitted. Easy to create multistep forms. Forms in pop-up and forms with conditional logic Upload files and attach them to notification email. A great variety of fields: datepicker, range slider, image select and more Numerous styling customizations to exactly match your shop's aesthetic.
Build branded email sign-up forms and grow your audience effortlessly with GetResponse Forms GetResponse Forms is an ideal solution for merchants aiming to grow their email list and enhance customer engagement with targeted email campaigns. This app effortlessly integrates with GetResponse, streamlining lead collection so you can easily manage subscribers and run impactful marketing campaigns. With fully customizable, mobile-friendly forms and advanced targeting features, it enables you to connect with the right customers at the right moment, boosting conversions and increasing sales. GetResponse Forms is an ideal solution for merchants aiming to grow their email list and enhance customer engagement with targeted email campaigns. This app effortlessly integrates with GetResponse, streamlining lead collection so you can easily manage subscribers and run impactful marketing campaigns. With fully customizable, mobile-friendly forms and advanced targeting features, it enables you to connect with the right customers at the right moment, boosting conversions and increasing sales. more Create personalized forms and pop-ups that match your store’s design. Start growing your email list in minutes with an intuitive setup process. Automatically connect and sync email subscribers with your GetResponse account. Ensure your forms are optimized for all devices.
A fully customizable and translatable cookie bar that ensures GDPR/CCPA compliance Ninja Cookie Bar GDPR offers a one-click solution for GDPR/CCPA (and more) cookie compliance. With Ninja Cookie Bar, you can display a professional cookie consent banner that appears for every new visitor and stays visible until they provide informed consent. Customize the banner to match your branding strategy and ensure compliance effortlessly. Ninja Cookie Bar GDPR offers a one-click solution for GDPR/CCPA (and more) cookie compliance. With Ninja Cookie Bar, you can display a professional cookie consent banner that appears for every new visitor and stays visible until they provide informed consent. Customize the banner to match your branding strategy and ensure compliance effortlessly. more One-click GDPR/CCPA cookie bar setup with user preferences and rejection options Include links from the banner to the full cookie policy and terms & conditions Fully customize the cookie bar's translations, colors, preferences, and blocks.
Effortlessly create stunning lookbooks & image galleries to captivate your audiences and drive sales Nitro Lookbooks allows merchants to create shoppable image galleries that drive more sales and enhance brand professionalism. You can pin many items to your lookbook including products, images, texts, and links which drive customers to explore more about your products. Also, lookbooks can be added at any position, on any page of your website. With various stunning layouts & design options, you can freely customize the lookbook as you want. Live chat support is always happy to assist. Nitro Lookbooks allows merchants to create shoppable image galleries that drive more sales and enhance brand professionalism. You can pin many items to your lookbook including products, images, texts, and links which drive customers to explore more about your products. Also, lookbooks can be added at any position, on any page of your website. With various stunning layouts & design options, you can freely customize the lookbook as you want. Live chat support is always happy to assist. more Create shoppable lookbooks allowing you to pin products, images & links easily Various stunning & modern layouts to showcase lookbook Freely customize how lookbooks & galleries display on your store Customize presets for lookbook elements: hotspot (pins), tooltips & buttons Showcase lookbooks & galleries at any position on any page
Effortlessly enhance your store with Instant Buy & Ajax Add to Cart - the ultimate shopping This app allows you to optimize your store for a smooth shopping experience. With Instant Buy, customers can purchase products with just one click, eliminating the need for lengthy checkout processes. The app also incorporates Ajax Add to Cart, allowing customers to add products to their cart without having to leave the collection/search page. Recommended Products popup will be shown after added to Cart. The floating Sticky Cart will either open app's built-in Cart Drawer or Go to the Cart page. This app allows you to optimize your store for a smooth shopping experience. With Instant Buy, customers can purchase products with just one click, eliminating the need for lengthy checkout processes. The app also incorporates Ajax Add to Cart, allowing customers to add products to their cart without having to leave the collection/search page. Recommended Products popup will be shown after added to Cart. The floating Sticky Cart will either open app's built-in Cart Drawer or Go to the Cart page. more Instant checkout with one-click purchase Ajax add-to-cart without page reloads Shows recommended products after added to cart Sticky Add to cart on Product page Sticky Cart button easily opens app's built-in Cart Drawer or go to Cart page
Intelligent Commerce Experience Platform helping brands increase online engagement and revenue We help online brands transform the commerce experience by enriching and connecting customer, product, and content data so they can deliver personalized experiences at scale. This is done through our AI-powered Commerce Experience Platform made up of intuitively designed tools that increase online revenue through end-to-end commerce experience management. Nosto makes every online commerce experience authentic and relevant so consumers have loveable experiences with their favorite brands. We help online brands transform the commerce experience by enriching and connecting customer, product, and content data so they can deliver personalized experiences at scale. This is done through our AI-powered Commerce Experience Platform made up of intuitively designed tools that increase online revenue through end-to-end commerce experience management. Nosto makes every online commerce experience authentic and relevant so consumers have loveable experiences with their favorite brands. more Site Search. Powerful, personalized, AI search to boost product discovery Personalization. Make the experience unique for every single shopper every time Merchandising. Total control over product rankings within all discovery pillars Content. Personalized content and authentic UGC to increase conversions Business Intelligence. Dive deep on the things that make your shoppers tick
Engage with customers everywhere: Facebook Messenger, Telegram, & 20+ chat channels & Contact Form. With one-click integration with Omega: Facebook Messenger Chat & Contact Form, you can keep conversions persistent across your Shopify stores through Facebook chat, chat popup, and 20+ platforms like SMS, Email, Viber, Phone, WeChat, Skype, Line, TikTok, Telegram, Facebook and Instagram, etc. Omega Facebook Messenger Chat help increase sales conversions, generate leads, and improve customer support with one live chat button With one-click integration with Omega: Facebook Messenger Chat & Contact Form, you can keep conversions persistent across your Shopify stores through Facebook chat, chat popup, and 20+ platforms like SMS, Email, Viber, Phone, WeChat, Skype, Line, TikTok, Telegram, Facebook and Instagram, etc. Omega Facebook Messenger Chat help increase sales conversions, generate leads, and improve customer support with one live chat button more Build your customer support with Messenger chat, Teleram, and Instagram,... All-in-one chat button lets customers chat with you via their preferred chat app Customize chat widget's style, device & page target, and preset welcome messages Analyze the effectiveness of chat channels: Messenger & contact form Messenger welcome message box helps increase customer engagement
Easy set up WhatsApp, Instagram, other social media, chat, and your favorite images in your shop! This app easily adds a WhatsApp button to your shop. In addition to WhatsApp, it comes with preset icons for social media platforms like Instagram, TikTok, X, Messenger, Telegram, and LINE. You can also upload your favorite images, allowing you to set buttons for phone, email, chat, concierge, and more. You can freely set the destination link for the buttons as well. How you use it is up to you! This app easily adds a WhatsApp button to your shop. In addition to WhatsApp, it comes with preset icons for social media platforms like Instagram, TikTok, X, Messenger, Telegram, and LINE. You can also upload your favorite images, allowing you to set buttons for phone, email, chat, concierge, and more. You can freely set the destination link for the buttons as well. How you use it is up to you! more You can easily install a WhatsApp button in your shop. You can also install SNS buttons other than WhatsApp. You can upload your favorite image and set a link. You can freely set the installation location. Select which markets to display when multiple markets are available.
Boost Sales with AI Quizzes & Funnels That Guide Shoppers, Personalize Products, & Drive Conversions Octane AI helps DTC brands turn shoppers into converted sales with AI-powered quizzes & smart funnels. Collect zero-party data, build rich customer profiles, & deliver personalized product recommendations automatically. Give your shoppers a guided experience by recommending the right product at the right moment, while reducing returns. Uncover opportunities & trends; optimize conversions with built-in A/B testing & performance tracking. Works seamlessly with Klaviyo, Postscript, Attentive, etc. Octane AI helps DTC brands turn shoppers into converted sales with AI-powered quizzes & smart funnels. Collect zero-party data, build rich customer profiles, & deliver personalized product recommendations automatically. Give your shoppers a guided experience by recommending the right product at the right moment, while reducing returns. Uncover opportunities & trends; optimize conversions with built-in A/B testing & performance tracking. Works seamlessly with Klaviyo, Postscript, Attentive, etc. more Quiz: Product recommendations using personalized quizzes automatically with AI Shopping Assistant: Show quizzes in a popup to move from discovery to purchase Smart Products: Tell AI what you want & get immediate product recommendations Smart Copy: Add text prompts to quiz results to recommend personalized products Image Analyzer: Customers upload photos for AI analysis for shade matching, etc.
Discover the ease and flexibility of our customizable and user-friendly store branch locator. Simplify your store branch location with our user-friendly store branch locator app. Push in-store sales, reduce support queries, and effectively showcase your stores, retailers, and dealers. Gain valuable insights into customer preferences with advanced analytics. Optimize your strategy with data-driven decisions. Try our store locator today. Simplify your store branch location with our user-friendly store branch locator app. Push in-store sales, reduce support queries, and effectively showcase your stores, retailers, and dealers. Gain valuable insights into customer preferences with advanced analytics. Optimize your strategy with data-driven decisions. Try our store locator today. more No need for an API key – easy installation without external services or expenses Choose from various map styles and utilize custom markers to categorize Add unlimited number of locations and display store details with review section Add anywhere in your page - home, collection or any page using theme block You can enable widgets or App Embed with customizable option
Allow shoppers to create custom pricing quotes real-time and self-checkout! This app allows you to generate pricing on the fly! Create unlimited variants (avoid Shopify's variant limit), unlimited options, custom pricing calculations, quotes, bundles, subscriptions, selling plans, and more without having to create a custom app! It is designed to be developer friendly with no rigid templates. Use your own HTML, CSS, and JavaScript formula. Customize it however you wish! This app allows you to generate pricing on the fly! Create unlimited variants (avoid Shopify's variant limit), unlimited options, custom pricing calculations, quotes, bundles, subscriptions, selling plans, and more without having to create a custom app! It is designed to be developer friendly with no rigid templates. Use your own HTML, CSS, and JavaScript formula. Customize it however you wish! more Allows unlimited questions / prices / variants / options Increase sales with real-time quotes and shopper self-checkout Run your own code without having to build an app Developer friendly - built for devs
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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.