Product Options built for complex products. Guide complex choices with clarity. Build complex product configurations with 30+ option types, conditional logic, add-on pricing, file uploads and live personalization. Reuse option sets, manage shared SKU and inventory workflows, and keep custom choices synced from cart to confirmation. Connect option data to Draft Orders, POS, API and business workflows—with 24/7 human support and hands-on help from our development team. Build complex product configurations with 30+ option types, conditional logic, add-on pricing, file uploads and live personalization. Reuse option sets, manage shared SKU and inventory workflows, and keep custom choices synced from cart to confirmation. Connect option data to Draft Orders, POS, API and business workflows—with 24/7 human support and hands-on help from our development team. more Build complex product options with 30+ flexible input types. Use conditional logic, add-on pricing, file uploads & personalization. Reuse option sets and manage shared SKU & inventory workflows. Keep custom choices synced from cart to orders, emails & packing slips Get 24/7 human support with hands-on help from our dev team
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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Aroopa Apps: Forms, Dashboards, Workflows, CRM & OMS to streamline e-commerce & order management. Automate your entire Shopify workflow — Forms, CRM, Campaigns, ERP integrations, and more, all in one no-code platform. Automate customer approvals, order workflows, and inventory sync while connecting your ERP for seamless data flow. Segment customers, personalize engagement with CRM, and run automated marketing campaigns. Track performance with built-in reports and dashboards. Connect 100+ integrations to extend automation beyond Shopify's native limits — no code required. Automate your entire Shopify workflow — Forms, CRM, Campaigns, ERP integrations, and more, all in one no-code platform. Automate customer approvals, order workflows, and inventory sync while connecting your ERP for seamless data flow. Segment customers, personalize engagement with CRM, and run automated marketing campaigns. Track performance with built-in reports and dashboards. Connect 100+ integrations to extend automation beyond Shopify's native limits — no code required. more Order Management: Automate order approvals, tag customers, and notify instantly. Forms: Build custom forms with an easy drag-and-drop interface. Workflows: Streamline tasks with no-code automation for approvals and processes. CRM Capabilities: Personalize customer interactions with integrated data insight Inventory Management: Sync stock across channels and lock unapproved access.
Revolutionize Your Store with Askflow’s Product Recommendation Quizzes App Maximize your sales potential with Askflow’s Product Quiz App - the ultimate solution to creating personalized Product Recommendation Quizzes with ease and without any technical skills. Our AI algorithms provide the best recommendations for your customers, giving you continuous insights and data to enhance their user experience. With branching logic, you can deliver tailored content that boosts customer loyalty. Supercharge your Shopify store with Askflow’s AI Shop Assistants. Maximize your sales potential with Askflow’s Product Quiz App - the ultimate solution to creating personalized Product Recommendation Quizzes with ease and without any technical skills. Our AI algorithms provide the best recommendations for your customers, giving you continuous insights and data to enhance their user experience. With branching logic, you can deliver tailored content that boosts customer loyalty. Supercharge your Shopify store with Askflow’s AI Shop Assistants. more Use AI credits to generate your quiz in less than 1 minute Build custom logic for precise product suggestions, no coding needed Pick from 6 ready-to-use designs or create your own Integrate with Klaviyo, Google Analytics, Meta Pixel Publish as a page, embedded & pop-up or widget with CTA.
AI shopping assistant for 24/7 customer support & sales with automated product recommendations & FAQ AskTimmy offers human-like AI live chat to automate customer support and reduce support tickets. ChatGPT powered AI shopping assistant handles queries, recommends & promotes products with AI nudges. Syncs product catalogs, pages, policies, documents & FAQs to power an AI knowledge base & AI FAQ. Personalize your AI chatbot widget to match your brand and enable AI customer support with an AI agent. Use AI product filter & search for conversational AI self-service that boosts sales. AskTimmy offers human-like AI live chat to automate customer support and reduce support tickets. ChatGPT powered AI shopping assistant handles queries, recommends & promotes products with AI nudges. Syncs product catalogs, pages, policies, documents & FAQs to power an AI knowledge base & AI FAQ. Personalize your AI chatbot widget to match your brand and enable AI customer support with an AI agent. Use AI product filter & search for conversational AI self-service that boosts sales. more Gen-AI Shopping Assistant with search & discovery to increase sales & AOV AI FAQ & AI Knowledge base built from Shopify pages, policies & documents Smart search & navigation to increase conversions with AI product filter AI customer service to reduce support cost & automate support tickets 24/7 Multi language support for 95+ languages with smart AI nudges & chat widget
Increase your AOV with frequently bought together, volume discount, upsell and post purchase offers Assortion is a one-stop-shop for all your upsell and cross-sell needs. Instead of using 5 different apps with separate integration, analytics, learning curve, impact on loading speed, we offer same functionality with integrated analytics, consistent design across widgets with very easy to use UI. Assortion is a one-stop-shop for all your upsell and cross-sell needs. Instead of using 5 different apps with separate integration, analytics, learning curve, impact on loading speed, we offer same functionality with integrated analytics, consistent design across widgets with very easy to use UI. more Create bundles of frequently bought products and upsell offers Offer product add-ons that can be added to cart alongside a main product Incentivize customers to buy more with quantity breaks / volume discounts Create special post purchase offers after customers place an order Augment your automatic product recommendations with your custom ones
Accessibility toolbar supporting WCAG, ADA & EAA efforts: text sizing, contrast, reading tools. Make your store easier to use for shoppers with disabilities, and show your work on accessibility standards like WCAG, ADA, and the European Accessibility Act. AutoCompliance adds a customizable accessibility toolbar to your storefront in one click, no code required. Shoppers can adjust text size and spacing, invert colors, follow a reading guide, use text-to-speech, and more. Customize colors and the launcher icon to match your brand. Make your store easier to use for shoppers with disabilities, and show your work on accessibility standards like WCAG, ADA, and the European Accessibility Act. AutoCompliance adds a customizable accessibility toolbar to your storefront in one click, no code required. Shoppers can adjust text size and spacing, invert colors, follow a reading guide, use text-to-speech, and more. Customize colors and the launcher icon to match your brand. more Shopper-controlled toolbar: text size & spacing, contrast, reading guide & more Installs with just one click, no coding skills required Powerful features including reading guide, text to speech, text sizing, and more Customizable colors and icon to match your brand Supports your WCAG, ADA, and European Accessibility Act efforts
An accessibility solution that helps you align with EAA, ADA, AODA, and WCAG standards. Avada Accessibility helps merchants identify and fix accessibility issues to meet ADA, EAA, and AODA requirements. Built around WCAG and BFSG standards, it combines AI scanning, AI alt text generation, full-site audits, 25+ accessibility adjustments, automatic update audit statement. Go live in minutes with a fully customizable widget, make stores more inclusive, and litigation-proof. Found issues? Our team can help fix them for you, included during early access, with 24/7 live chat support. Avada Accessibility helps merchants identify and fix accessibility issues to meet ADA, EAA, and AODA requirements. Built around WCAG and BFSG standards, it combines AI scanning, AI alt text generation, full-site audits, 25+ accessibility adjustments, automatic update audit statement. Go live in minutes with a fully customizable widget, make stores more inclusive, and litigation-proof. Found issues? Our team can help fix them for you, included during early access, with 24/7 live chat support. more [New] Compliance issue fixing service is included with early access. 25+ accessibility adjustments without changing your layout and web performance Fully customizable accessibility widget to match your brand Automated accessibility check with AI Scanner & auto-update audit statements AI-generated image Alt Text to support Screen reader
Run the cookie scanner, show the GDPR cookie banners each market needs, and log cookie consent. Built for EU shops, US sellers and stores selling worldwide. Every country and state has its own privacy law. Avada GDPR Cookies Consent helps you stay compliant with each, showing the cookie banners required by each market-based visitor location. The cookie scanner names and sorts the cookies your store run. Cookie consent reaches Google Consent Mode v2 and GTM, so ads and analytics keep working. Privacy policy pages for GDPR, CCPA, LGPD, PIPEDA and APPI on every plan—easy setup with Sidekick. Built for EU shops, US sellers and stores selling worldwide. Every country and state has its own privacy law. Avada GDPR Cookies Consent helps you stay compliant with each, showing the cookie banners required by each market-based visitor location. The cookie scanner names and sorts the cookies your store run. Cookie consent reaches Google Consent Mode v2 and GTM, so ads and analytics keep working. Privacy policy pages for GDPR, CCPA, LGPD, PIPEDA and APPI on every plan—easy setup with Sidekick. more Detect visitor country and show the GDPR cookie banners each market requires Run the cookie scanner and write your privacy policy page on every plan Auto-block cookies until visitors accept, then send cookie consent to GCM v2 Log every consent choice as GDPR proof and reset the banner when policy changes Show the GDPR legal cookie banner on checkout and account pages with TCF v2.3
AVP - Age verification popup: Age check, Age verify, Safeguard Store, Ensure Legal Compliance AVP - Age Verifier: Safeguard your Shopify store and maintain legal compliance & privacy with our fully customizable 18+, 21+ age verification popup - no coding required! Effortlessly set up age verification using the birth date option. Limit age or set age restrictions on accessing your store and age checkout. With our age verification app, you can swiftly create a secure age checker and compliant website in just a few clicks. AVP - Age Verifier: Safeguard your Shopify store and maintain legal compliance & privacy with our fully customizable 18+, 21+ age verification popup - no coding required! Effortlessly set up age verification using the birth date option. Limit age or set age restrictions on accessing your store and age checkout. With our age verification app, you can swiftly create a secure age checker and compliant website in just a few clicks. more Age verifier: Ensure legal compliance with the Age Verification Popup Set a minimum age requirement with Date of Birth verification Choose from age popup templates or customize them to match your store branding Restriction age popup looks good on different screen resolutions Restrict access to all pages or specific pages of your store
Help customers find nearby stores, dealers, and stockists with a searchable map and geolocation. Add a store locator to your storefront so customers can search for nearby stores, dealers, or stockists. Show locations on an interactive map, use geolocation to help customers find nearby results, and let them search by address or distance. Manage business hours and store details, customize the locator with CSS and map styling, and import or export locations in bulk. Add a store locator to your storefront so customers can search for nearby stores, dealers, or stockists. Show locations on an interactive map, use geolocation to help customers find nearby results, and let them search by address or distance. Manage business hours and store details, customize the locator with CSS and map styling, and import or export locations in bulk. more Let customers search stores, dealers, and stockists by location Use geolocation to show nearby locations automatically Filter results by distance with address autocomplete Import and export store locations in bulk Customize map styling, business hours, store details, and CSS
Instantly add a "contact us" button and contact page to your shop. Improved Contact Form adds a floating "contact us" button to the corner of each page of your store. Visitor and customers can click it to contact you, and their message will be delivered to your email. Additional widget options to help boost engagement and purchases can be added to your shop in one click, including lead capture forms, promotional banners, coupon popups and social media buttons. Improved Contact Form adds a floating "contact us" button to the corner of each page of your store. Visitor and customers can click it to contact you, and their message will be delivered to your email. Additional widget options to help boost engagement and purchases can be added to your shop in one click, including lead capture forms, promotional banners, coupon popups and social media buttons. more Adds a "contact us" button to the corner of each page of your site. Creates a contact page you can link to from your navigation menus. Additional widgets can be installed with no code changes.
Cookie-banner management and personalization, compliant with Google Consent Mode v2, GDPR & Law 25 Compliance doesn’t have to hurt performance. Axeptio delivers a premium, immersive consent experience that merges consent and marketing moments with a fully branded consent banner. Keep your Shopify store aligned with GDPR, CCPA, and global regulations, without slowing you down. Launch banners in minutes, optimize with A/B testing and consent walls, and connect with GA4, Matomo, and more. Mobile-ready, SEO-friendly, and trusted by 200,000+ sites. Compliance doesn’t have to hurt performance. Axeptio delivers a premium, immersive consent experience that merges consent and marketing moments with a fully branded consent banner. Keep your Shopify store aligned with GDPR, CCPA, and global regulations, without slowing you down. Launch banners in minutes, optimize with A/B testing and consent walls, and connect with GA4, Matomo, and more. Mobile-ready, SEO-friendly, and trusted by 200,000+ sites. more Secure compliance with Shopify-ready API integration. Achieve global legal compliance effortlessly. Enhance trust with customizable consent banners. Maximize consent rates with detailed analytics. Cookie scanner reveals all cookies on your store, with auto reports provided.
Create wholesale catalogs and linesheets that let buyers browse and order quickly online. Create professional wholesale catalogs and linesheets directly from your Shopify store. Choose products or collections, apply customizable templates, and instantly publish a branded digital catalog with an integrated shopping cart. Buyers can browse, add items, and send orders directly to Shopify draft orders. Flexible PDF export, pricing options, and branding tools make it easy to share catalogs with wholesale and retail customers. Create professional wholesale catalogs and linesheets directly from your Shopify store. Choose products or collections, apply customizable templates, and instantly publish a branded digital catalog with an integrated shopping cart. Buyers can browse, add items, and send orders directly to Shopify draft orders. Flexible PDF export, pricing options, and branding tools make it easy to share catalogs with wholesale and retail customers. more Catalog, Online catalogs with an integrated wholesale order form. Linesheet, Linesheet view for fast bulk ordering Orders, Redirect buyer orders to Shopify draft orders.
Back in stock alerts that help you recover sales when sold-out products become available again. Recover lost sales with back in stock alerts. Let customers sign up to get notified when a particular product or variant is restocked. The app works with almost all Shopify themes and supports product variants. You can customize the “Notify Me” button text, colors, and email templates to match your store's design. Add the button to product or collection pages easily. No coding needed. Quick to install and easy to use. Turn “out of stock” into “back in stock” and recover lost revenue easily Recover lost sales with back in stock alerts. Let customers sign up to get notified when a particular product or variant is restocked. The app works with almost all Shopify themes and supports product variants. You can customize the “Notify Me” button text, colors, and email templates to match your store's design. Add the button to product or collection pages easily. No coding needed. Quick to install and easy to use. Turn “out of stock” into “back in stock” and recover lost revenue easily more Let customers subscribe & get notified when products are back in stock Send automatic or manual alerts when sold-out products or variants are restocked Edit button text, font color, and background to match your store’s style Sync subscribers to your Shopify customer list for future email marketing Preorder feature is avaibale
Create beautifully animated and fully customizable accouncement banners on your storefront! Increase visibility of upcoming events like sales, discounts, coupons and promotions through highly customizable announcement banners. Equiped with dozens of fonts, call to action, animations, and custom behaviour, Bannerfy provides a highly visible platform to show your customers what is really important. Increase visibility of upcoming events like sales, discounts, coupons and promotions through highly customizable announcement banners. Equiped with dozens of fonts, call to action, animations, and custom behaviour, Bannerfy provides a highly visible platform to show your customers what is really important. more Fully customizable to match your theme! Add animations to ensure banners get seen! Custom behaviour to enable sales and events!
Promote product with a variety of widgets Recently Viewed, Social Proof, and Recommendation… Looking for a solution to the annoying problem of multiple pop-up windows overlapping on your website? Sales Pop Total has you covered! Sales Pop Total is a collection of many different popups from Social Proof, Live counter, Recently view, Sticky Add To Cart, Upsell, and Cross-selling popups. All these Sales Pop Total windows will never overlap. This will give your customers a better experience on your website and help your website get more Inhouse Traffic. Looking for a solution to the annoying problem of multiple pop-up windows overlapping on your website? Sales Pop Total has you covered! Sales Pop Total is a collection of many different popups from Social Proof, Live counter, Recently view, Sticky Add To Cart, Upsell, and Cross-selling popups. All these Sales Pop Total windows will never overlap. This will give your customers a better experience on your website and help your website get more Inhouse Traffic. more Supports a variety of widgets Recently Viewed, Social Proof, Live Counter… Increase AOV by showing relevant recommendations based on user activity. Responsive design ensures all widgets look great on any device Full widget report and stats, including impressions, clicks, and actions. Customizable appearance options to match your brand.
Customize checkout using powerful checkout rules to streamline and boost checkout conversion. Take control of your checkout experience by conditionally showing, hiding, renaming, or reordering shipping and payment methods based on cart total, weight, address, items, tags, or other conditions. Set default options, block invalid checkouts, hide express payment buttons, move store pickup to the bottom, restrict PO Box shipping, apply discounts to orders or shipping methods, and more. Enhance customer satisfaction by streamlining your checkout. Take control of your checkout experience by conditionally showing, hiding, renaming, or reordering shipping and payment methods based on cart total, weight, address, items, tags, or other conditions. Set default options, block invalid checkouts, hide express payment buttons, move store pickup to the bottom, restrict PO Box shipping, apply discounts to orders or shipping methods, and more. Enhance customer satisfaction by streamlining your checkout. more Reorder/Rearrange shipping/payment methods on the checkout page. Hide payment/shipping methods by e-g Cart total, Product tag, Customer tag, etc. Set the default pre-selected shipping or payment method. Offer discounts. Hide express checkout payment buttons from the top of the checkout page. Hide shipping, e-g, UPS, or block checkout, if the address contains a PO box.
Add a terms and conditions checkbox. Require customer consent. **BeUniq Agree Terms & Conditions** helps merchants add a terms and conditions checkbox to the cart page, allowing customers to review and accept store policies before proceeding to payment. Once enabled, customers must agree to the terms before completing their order. The app records the customer's consent and displays the accepted terms status in the order details section. Easily customize the checkbox message and policy link to match your store requirements without coding. Provide a transpare **BeUniq Agree Terms & Conditions** helps merchants add a terms and conditions checkbox to the cart page, allowing customers to review and accept store policies before proceeding to payment. Once enabled, customers must agree to the terms before completing their order. The app records the customer's consent and displays the accepted terms status in the order details section. Easily customize the checkbox message and policy link to match your store requirements without coding. Provide a transpare more Add a terms and conditions checkbox on the cart page. Require customer agreement before proceeding to checkout. Record customer consent with order details. PopUp and Inline option to show Agree Terms Checkbox Customize the checkbox appearance to match your store theme.
Add external link buttons to products, blogs, and pages for Amazon, eBay, WhatsApp, and more. BeUniq External Links lets you add customizable external link buttons to product pages, blog articles, and content pages without modifying your theme code. Installation is quick and simple—just enable the app and start adding links. Direct customers to affiliate products, partner websites, marketplaces, or other external resources with ease. Perfect for bloggers, affiliates, and merchants who want to expand buying options while maintaining a seamless shopping experience. BeUniq External Links lets you add customizable external link buttons to product pages, blog articles, and content pages without modifying your theme code. Installation is quick and simple—just enable the app and start adding links. Direct customers to affiliate products, partner websites, marketplaces, or other external resources with ease. Perfect for bloggers, affiliates, and merchants who want to expand buying options while maintaining a seamless shopping experience. more One Click Install - No coding skills required. Unique links for each blog article, page and product page. Multiple links Support. Add any custom link. Hide Add to cart on product page | Mobile compatible. You can customize the button style according to your theme design.
Show a free shipping progress bar. Help customers track cart goals. **BeUniq Free Shipping Bar** helps merchants increase average order value by motivating customers to reach a free shipping goal. Display a customizable progress bar that updates in real time as shoppers add products to their cart, showing how much more they need to spend to qualify for free shipping. Customize the bar to match your store's branding without coding. Encourage larger purchases, improve conversions, and create a more engaging shopping experience. **BeUniq Free Shipping Bar** helps merchants increase average order value by motivating customers to reach a free shipping goal. Display a customizable progress bar that updates in real time as shoppers add products to their cart, showing how much more they need to spend to qualify for free shipping. Customize the bar to match your store's branding without coding. Encourage larger purchases, improve conversions, and create a more engaging shopping experience. more Display a real-time free shipping progress bar that updates as customers shop. Set customizable free shipping goals to encourage higher cart values. Motivate clients to add more products to cart to achieve free shipping cart goal Customize colors, text, icons, and styling to match your store's branding. Fast-loading, mobile-friendly design for a seamless shopping experience.
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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.