AI-powered personalized search and product discovery The Relewise for Shopify app makes it easier to bring Relewise personalization into your Shopify storefront. The app helps you connect Shopify store data, including products and Shopify Pages such as articles and blogs, to a Relewise dataset and import your catalog. You can complete the core setup in just a few clicks without custom code. Once installed, you can add Relewise search and recommendation blocks directly in Shopify’s theme editor. Behavior tracking is included, so personalization The Relewise for Shopify app makes it easier to bring Relewise personalization into your Shopify storefront. The app helps you connect Shopify store data, including products and Shopify Pages such as articles and blogs, to a Relewise dataset and import your catalog. You can complete the core setup in just a few clicks without custom code. Once installed, you can add Relewise search and recommendation blocks directly in Shopify’s theme editor. Behavior tracking is included, so personalization more Connects your Shopify store to a Relewise dataset and configures the integration Imports and syncs product catalog via Shopify webhooks and scheduled refreshes Builds the search foundation for Relewise search and recommendations Add search and recommendation blocks in Shopify theme editor (no custom code) Supports search overlay, search results block, and multiple recommendation types
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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View Best Custom CSS AppsAdd custom fields on the cart page. Request the information you need to fulfill orders. With our app, you can easily add custom fields to your cart page, and optionally make them required. Customers won't be able to visit the checkout area unless they fill out the information you need. The captured information is saved with Shopify and available to you in the order page. It can also be exported, displayed in emails and order printouts etc. The app supports the newest theme format known as Online Store 2.0. With our app, you can easily add custom fields to your cart page, and optionally make them required. Customers won't be able to visit the checkout area unless they fill out the information you need. The captured information is saved with Shopify and available to you in the order page. It can also be exported, displayed in emails and order printouts etc. The app supports the newest theme format known as Online Store 2.0. more Field types: Text, Number, Checkbox, Radio, Dropdown, Combobox, and Text area. Simple drag and drop install process, built into the Theme Editor. Field data is saved in Shopify and easily accessible on the order page. Efficient code served from Shopify's servers — minimal impact on store speed. Captured information can be exported and displayed using Liquid code.
Custom-fit your sales with dynamic, easy-to-edit and personalized size charts. Retailed Size Chart & Guide is your key to reducing returns and boosting conversions. Designed for Shopify merchants, our app empowers you to create tailored size charts with no coding required. Whether you're selling sneakers, apparel, accessories, or bespoke items, our solution simplifies size guidance, ensuring your customers find their perfect fit. Reduce sizing confusion and enhance shopping experience — all with a few clicks. Retailed Size Chart & Guide is your key to reducing returns and boosting conversions. Designed for Shopify merchants, our app empowers you to create tailored size charts with no coding required. Whether you're selling sneakers, apparel, accessories, or bespoke items, our solution simplifies size guidance, ensuring your customers find their perfect fit. Reduce sizing confusion and enhance shopping experience — all with a few clicks. more Data stored in your shop: Using metaobjects and metafields as dynamic sources Drag & drop customization: Easily adjust your size charts without coding. Full theme editor compatibility: Seamlessly edit within Shopify's theme editor. Rich content support: Incorporate tables, images, videos, and tabs. Size chart | Size converter | Size guide | Size | Help size | Size tab | Sizer
AI analyzes Amazon product reviews to help merchants showcase insights and drive conversions. Reviewal helps Shopify store owners enhance the shopping experience by enabling customers to compare Amazon products based on real customer feedback. Using AI, it analyzes reviews and provides clear, data-driven summaries, making decision-making easier. This helps merchants improve engagement, build trust, and drive conversions by offering shoppers valuable insights at a glance. Simple to use and highly effective, Reviewal turns customer feedback into a powerful sales tool. Reviewal helps Shopify store owners enhance the shopping experience by enabling customers to compare Amazon products based on real customer feedback. Using AI, it analyzes reviews and provides clear, data-driven summaries, making decision-making easier. This helps merchants improve engagement, build trust, and drive conversions by offering shoppers valuable insights at a glance. Simple to use and highly effective, Reviewal turns customer feedback into a powerful sales tool. more Product Comparison Tool AI-Powered Review Summaries Easy Integration
Recently Viewed Products lets customers remember items they want to buy, and thus increase sales. The recently viewed products image slider will automatically display images of items that customers have previously looked at. In addition to adjusting the border, style, and color, you can also choose whether or not to autoplay and loop the pictures in your slider. Simply install the app in your Shopify store dashboard page, configure your settings (including how many products show up), and then paste a shortcode into any Theme pages you want active. The recently viewed products image slider will automatically display images of items that customers have previously looked at. In addition to adjusting the border, style, and color, you can also choose whether or not to autoplay and loop the pictures in your slider. Simply install the app in your Shopify store dashboard page, configure your settings (including how many products show up), and then paste a shortcode into any Theme pages you want active. more The image slider makes it easy for customers to find recently viewed products. It will help customers to find his/her recently viewed products. Change the number of products to display in the image slider. 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.
Self-service order editing app trusted by world-class brands. More sales, higher AOV, fewer tickets. Revize delivers enterprise grade order editing trusted by world‑class brands. Shoppers edit orders before shipping: edit address, change quantity & variants, swap/ add products, apply discounts, generate tax invoices, or cancel orders. Auto-refunds as store credits keep revenue. AI upsells on order status page/ thank you page, email upsells & auto cancel orders. 100+ integrations: Klaviyo, Recharge & Shopify Flow. Revize analytics in Sidekick. 20+ languages. Enterprise order editor for Shopify. Revize delivers enterprise grade order editing trusted by world‑class brands. Shoppers edit orders before shipping: edit address, change quantity & variants, swap/ add products, apply discounts, generate tax invoices, or cancel orders. Auto-refunds as store credits keep revenue. AI upsells on order status page/ thank you page, email upsells & auto cancel orders. 100+ integrations: Klaviyo, Recharge & Shopify Flow. Revize analytics in Sidekick. 20+ languages. Enterprise order editor for Shopify. more Edit shipping address, change variants & quantity, swap/ add products, discounts Cancel orders w/ instant refunds or auto-refunds as store credits + reconvert AI post-purchase upsells on order status page & thank you page + Email upsells Subscription editing, B2B orders, tax invoices, smart edit windows & tag rules 100+ integrations, 20+ languages, third-party checkout & Built for Shopify
Provide the EU-required withdrawal button with a compliant two-step confirmation flow. EU Directive 2023/2673 requires an electronic withdrawal button for online shops. Revoq adds the compliant two-step withdrawal form to your store — no customer login required, automatic confirmation email included. Withdrawal requests are matched against your Shopify orders, tracked with status, and managed in a structured dashboard. Form appearance is fully customizable via Theme Editor. Guests and account holders are covered. Set up in minutes — no custom development or coding required. EU Directive 2023/2673 requires an electronic withdrawal button for online shops. Revoq adds the compliant two-step withdrawal form to your store — no customer login required, automatic confirmation email included. Withdrawal requests are matched against your Shopify orders, tracked with status, and managed in a structured dashboard. Form appearance is fully customizable via Theme Editor. Guests and account holders are covered. Set up in minutes — no custom development or coding required. more Legally compliant withdrawal button & form aligned with EU Directive 2023/2673 GDPR-compliant data protection – hosted in the EU, built in Germany Deadline check & order matching for structured internal workflows Tags, exports and documentation to reduce manual effort Multilingual withdrawal process for international EU shops
Boost your Average Order Value with Upsells, Upgrades & Discounts. Sell more, and better! Don’t miss the opportunity to sell more items on every order with upsell and cross-sell offers. Set up manual or AI offers which contain upsell and/or upgrade products, you can also add automatic and combinable discounts, which increases the conversion rates. Revy Unlimited UpSell goal is to increase your average order revenue without bothering your customers, providing a light experience but that can bring great results. UpSell and Cross-sell now! Don’t miss the opportunity to sell more items on every order with upsell and cross-sell offers. Set up manual or AI offers which contain upsell and/or upgrade products, you can also add automatic and combinable discounts, which increases the conversion rates. Revy Unlimited UpSell goal is to increase your average order revenue without bothering your customers, providing a light experience but that can bring great results. UpSell and Cross-sell now! more Call-to-Action Trigger - Upsell or Cross-Sell at the add-to-cart action AI AutoPilot — AI-driven recommendations for highly relevant offers Mobile-first Design - Optimized for a smooth mobile & desktop experience Auto Discounts - Leverages the latest discount tech for a native-like experience Automatic & Clean Install - No theme disruption, ZERO coding needed
Product quiz builder for global brands. Turn shoppers into sales with product recommendation quizzes Build high-converting product recommendation quizzes - no coding needed. RevenueHunt helps you guide shoppers to their best matching product, collect actionable data, and drive measurable results across your store and marketing channels. Create a product quiz with our AI-powered builder, gain customer insights, sync with your mailing list or CRM to create high-ROI marketing campaigns. Easily migrate from TypeForm, Octane AI, JotForm, Quizify, Quiz Kit, Jebbit, OutGrow, Quizell, or Lantern. Build high-converting product recommendation quizzes - no coding needed. RevenueHunt helps you guide shoppers to their best matching product, collect actionable data, and drive measurable results across your store and marketing channels. Create a product quiz with our AI-powered builder, gain customer insights, sync with your mailing list or CRM to create high-ROI marketing campaigns. Easily migrate from TypeForm, Octane AI, JotForm, Quizify, Quiz Kit, Jebbit, OutGrow, Quizell, or Lantern. more Boost sales - Guide customers to the right product with a quiz that converts. Collect actionable data - Segment and tag your shoppers based on quiz responses. Send captured leads to your mailing list or CRM to run personalized campaigns. Match your brand – Customize images, fonts, layout, and CSS to fit your style. Global Markets - Supports multi-store, multi-currency, multi-language workflows.
Virtual try-on and AI size recommendation to boost conversion and cut fit returns. Shoppers can't try clothes on through a screen, so they guess, order two sizes, and send one back. Robosize fixes both halves of that. Virtual try-on lets them see your garment on their own body. AI size recommendation tells them which size to pick, using height, weight and age. No tape measure. Set up one product and every other item in your store maps automatically. Works on any apparel store. Shoppers can't try clothes on through a screen, so they guess, order two sizes, and send one back. Robosize fixes both halves of that. Virtual try-on lets them see your garment on their own body. AI size recommendation tells them which size to pick, using height, weight and age. No tape measure. Set up one product and every other item in your store maps automatically. Works on any apparel store. more Virtual try-on: shoppers see your garment on their own body before buying AI size recommendation from height, weight and age. No tape measure needed Cut fit-related returns, roughly half of all apparel returns Fit one item and every product in your store maps to the right size Custom questions, fabric and cut inputs, plus fit analytics
Drive Sales w/ Sales Pop Up, Social Proof, Sales Notification, Stock alert, FOMO, & Countdown timer Maximize conversions with Sales Rocket by creating urgency and FOMO in your Shopify experience using sales popups and email popup ups. Boost sales with social proof to your store with sales notifications, falling emojis and emoji reactions. Encourage faster buy decisions in your Shopify store with quick view stock counter and countdown FOMO timer. These urgency tools elevate user experience and motivate purchases, leading to higher revenue. Implement Sales Rocket for impactful sales growth. Maximize conversions with Sales Rocket by creating urgency and FOMO in your Shopify experience using sales popups and email popup ups. Boost sales with social proof to your store with sales notifications, falling emojis and emoji reactions. Encourage faster buy decisions in your Shopify store with quick view stock counter and countdown FOMO timer. These urgency tools elevate user experience and motivate purchases, leading to higher revenue. Implement Sales Rocket for impactful sales growth. more Sales Popup: Spark engagement with real-time notifications of recent purchases Popup: Offer limited time offers & coupons to users with an urgency pop up Stock Countdown: Encourage FOMO buying w/ visible, diminishing stock levels Countdown Timer: Infuse urgency with urgency timers for special deals & offers Animated Buttons: Elevate checkout with animated cart and checkout button
Easily add an interactive Google map of your shop or Stockist/Supplier locations. Add store locations individually or in bulk, and list by location, radius, or custom tags. Customize the interactive Google map design to match your store perfectly. Customers can easily find nearby stores or Suppliers, get directions, and filter by unique store or stock details you add in. Add store locations individually or in bulk, and list by location, radius, or custom tags. Customize the interactive Google map design to match your store perfectly. Customers can easily find nearby stores or Suppliers, get directions, and filter by unique store or stock details you add in. more Bulk import: Upload 500+ locations via a simple CSV file. Custom Filters: Tag stores. Booking/Appt Integration, Calendars and More.. Fully Customizable Layouts, custom images and pins on an interactive map. Available in 25+ Languages with Customizable Translation Live Support 24/7 - Contact us to Schedule Installation Support
Combine products as variants. Create combined listings with product image swatches or color swatches Link separate products as variants with variant image swatches or color swatches on product pages & cards. Optimize SEO & AEO with lightweight swatches with no impact on page load. Create easy combined listings product grouping to group products as image variant siblings, works with all plans and themes. Create product groups in bulk. Customize swatch styles with rich options. Products auto-sync instantly. Combine product listings with unlimited variant options. Agent-friendly MCP server. Link separate products as variants with variant image swatches or color swatches on product pages & cards. Optimize SEO & AEO with lightweight swatches with no impact on page load. Create easy combined listings product grouping to group products as image variant siblings, works with all plans and themes. Create product groups in bulk. Customize swatch styles with rich options. Products auto-sync instantly. Combine product listings with unlimited variant options. Agent-friendly MCP server. more Make combined listings product swatches fit your brand with rich customizations Linked product variants swatches color grouping w/ image variant or color swatch Combine sibling products to show grouped products as variants on product cards Display out-of-stock as crossed out, at the end, or hidden. Auto-hide archived Color swatches product variants grouping under sub-sections like Limited edition
Set multiple variant images, display only correct images. Show color swatches with image variants Better conversion & lower returns by showing only selected variant images when variant picker options are selected. It is for shops with product variants & multiple variant images such as color variant images. Assign multiple images per varient. Show only selected variant pictures and variant swatches. Preserve your theme’s variant image gallery. Variant image swatches and variant color swatches are also available with custom image variant selector. Alternative to variant image automator Better conversion & lower returns by showing only selected variant images when variant picker options are selected. It is for shops with product variants & multiple variant images such as color variant images. Assign multiple images per varient. Show only selected variant pictures and variant swatches. Preserve your theme’s variant image gallery. Variant image swatches and variant color swatches are also available with custom image variant selector. Alternative to variant image automator more Assign multiple photos per variant. Auto assign variant images with AI or MCP Show multiple varient images for clean variant image gallery & product swatches Show variant picker with variant image swatches, color swatches, image variants Works seamless with all themes & page builder apps with no impact on page speed Clear product image swatch, variant photos help reduce return rates effectively.
Setup in 3 easy steps, No-code, Add new product launch announcements, Set selling period. Schedule product launches and limited-time sales without code. Set start and end dates for each product or variant, or use just one date. Hide or disable purchase buttons outside the selling period and restrict purchases at checkout. Show different messages before, during, and after sales, with customizable text, colors, and placement. Add countdown timers and product badges to make availability clear. Set translated messages for international shoppers. Ideal for seasonal products and drops. Schedule product launches and limited-time sales without code. Set start and end dates for each product or variant, or use just one date. Hide or disable purchase buttons outside the selling period and restrict purchases at checkout. Show different messages before, during, and after sales, with customizable text, colors, and placement. Add countdown timers and product badges to make availability clear. Set translated messages for international shoppers. Ideal for seasonal products and drops. more Scheduling | Set selling periods by product or variant, with start or end dates. Product messages | Show messages before, during, and after selling periods. Timers & badges | Count down to launches or end dates and show product status. Purchase restrictions | Block purchases at checkout outside the selling period. - Multilingual | Set product messages and checkout alerts for shoppers' language
Find what shoppers mean with AI-powered search, visual search, and collection filters Ryzo turns product discovery into a few taps. Shoppers upload or snap a photo to find visually similar products, or type a query and let AI-powered search understand what they mean — even with typos or vague wording. Smart filters adapt to each search so shoppers refine by what matters. Click any product to surface similar items and recommendations. Real-time analytics reveal what shoppers search for and where they drop off. Available in 10 languages, with hands-on setup support. Ryzo turns product discovery into a few taps. Shoppers upload or snap a photo to find visually similar products, or type a query and let AI-powered search understand what they mean — even with typos or vague wording. Smart filters adapt to each search so shoppers refine by what matters. Click any product to surface similar items and recommendations. Real-time analytics reveal what shoppers search for and where they drop off. Available in 10 languages, with hands-on setup support. more Search by image — shoppers find products by uploading or snapping a photo. AI text search understands intent, synonyms, typos and queries in any language Similar products & recommendations on every product to drive discovery Filter as shoppers search, or while they browse any collection page Real-time analytics on searches, clicks and drop-offs to guide decisions
Storeify Appointment Booking app is an all-in-one solution for booking and scheduling appointments Storeify Appointment Booking app allows business owners and professionals to create appointment booking type products on their website so that customers could easily fix their appointments online for the time slot available. This Appointment Booking app can be used for different businesses and professionals such as Doctors, Cosmetologists, Pathologists, and Automobile Servicing, etc. Feel free to try our app to understand why merchants around the world trust us. Storeify Appointment Booking app allows business owners and professionals to create appointment booking type products on their website so that customers could easily fix their appointments online for the time slot available. This Appointment Booking app can be used for different businesses and professionals such as Doctors, Cosmetologists, Pathologists, and Automobile Servicing, etc. Feel free to try our app to understand why merchants around the world trust us. more Customers can easily book/cancel an appointment with just a few steps Notify customers and employees when there is any change of appointment via email Add appointment booking form anywhere, multi-language, add custom questions, etc Store admin can create appointment from backend Google / Office 365 / Outlook Calendar Integrations
Easy contact form, contact us form, contact page, form builder: the great way to reach your audience Wondering why you need a contact form (contact us form) on your website? Why not just publish an email address instead? A contact form (contact us form) makes your store more interactive and useful. And a contact form (contact us form) will be very helpful to help you grow your business. You can easily create beautiful & professional contact forms, contact us pages. Feel free to try our app to understand why merchants around the world trust S: Contact Form Builder. Wondering why you need a contact form (contact us form) on your website? Why not just publish an email address instead? A contact form (contact us form) makes your store more interactive and useful. And a contact form (contact us form) will be very helpful to help you grow your business. You can easily create beautiful & professional contact forms, contact us pages. Feel free to try our app to understand why merchants around the world trust S: Contact Form Builder. more Build contact form/popup custom form/contact us page easily with AI Form builder Build many form types: contact/survey/product question/subscription form, etc Custom email messages, auto-response, integration of popular email services Manage Submissions: view submission history, report or export submissions easily Multi-steps, conditional logic, integrates with Shopify Customers, Google sheets
Help customers find the nearest store in seconds using Google Maps, product search and SEO-optimize Our Store Locator app will help you show all your physical stores, dealers, distributors, and more on a single page on your Shopify website. Use Google maps to display store locations/dealer locations with exact addresses to make the shopping process as easy as it can be. You can add an unlimited number of store locations that will be conveniently displayed and ordered as per your personal preferences. Feel free to try our app to understand why merchants around the world trust us. Our Store Locator app will help you show all your physical stores, dealers, distributors, and more on a single page on your Shopify website. Use Google maps to display store locations/dealer locations with exact addresses to make the shopping process as easy as it can be. You can add an unlimited number of store locations that will be conveniently displayed and ordered as per your personal preferences. Feel free to try our app to understand why merchants around the world trust us. more Bulk uploads (CSV/Sheets), Automatically sync with with Google Sheets Easily search for stores by location/postcode/store name/product name/tags Location detail page with products, SEO meta, LocalBusiness, tracking code Dealer registration form, location contact form, Heat-map, language translation Multi page layout & map style, custom CSS, custom fields, bulk import & export
Allows your customers to submit quotes for any product and bargain for the best price With SA Request a Quote, buyers can add products to quote in one click from collection and product pages as well as from the shopping cart. Let customers suggest new best-suited prices and add remarks to each quote item. With this app you can also hide price, hide add-to-cart button of a product. Require customer login to see product prices With SA Request a Quote, buyers can add products to quote in one click from collection and product pages as well as from the shopping cart. Let customers suggest new best-suited prices and add remarks to each quote item. With this app you can also hide price, hide add-to-cart button of a product. Require customer login to see product prices more Request quotes for D2C & B2B customers, works with B2B companies and catalogs. Design the RFQ button & form to match the style of your B2B/D2C store. Login to see price. Hide product prices based on tag, vendor, collection, etc. Convert quotes to orders with advanced B2B management tools. Get notified and track every quote request in real time.
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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.