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Custom CSS Shopify Apps

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

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

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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

0.0(Reviews)

Provide search suggestions as you type. One can also enable search results and collection filters. This app boosts search & discovery with instant suggestions as you type, helping customers find products, blogs, pages & collections quickly. Product filters: Refine results on search results page & collection pages using smart filters. Data analysis: Gain valuable search data insights. Easy installation: Seamlessly integrate with your store. This app boosts search & discovery with instant suggestions as you type, helping customers find products, blogs, pages & collections quickly. Product filters: Refine results on search results page & collection pages using smart filters. Data analysis: Gain valuable search data insights. Easy installation: Seamlessly integrate with your store. more LiveSearch suggestions with unlimited products, collections, pages & blogs Smart search bar Search results page and collection page filter menu. Complete search and click pattern analysis. The app works for all languages.

4.9(Reviews)

Make your shop comply with the EU Omnibus Directive. Our app ensures full compliance with the European Omnibus Directive by displaying the lowest price of the past 30 days for each product variant. We monitor and record price changes, keeping the lowest price always updated. The product page widget is fully customizable in terms of color, spacing, and formatting, offering advanced display settings, including the ability to hide it by vendor and tag. You can reach us via chat or email for assistance. Our app ensures full compliance with the European Omnibus Directive by displaying the lowest price of the past 30 days for each product variant. We monitor and record price changes, keeping the lowest price always updated. The product page widget is fully customizable in terms of color, spacing, and formatting, offering advanced display settings, including the ability to hide it by vendor and tag. You can reach us via chat or email for assistance. more Complies with Omnibus: Track the lowest price over 30 days or custom timeframe. Customizable Widget: Edit colors, adjust spacing, position and translate texts. Display initial price, hide widget based on product price, vendors or tags. Support through live chat and email for any request.

5.0(Reviews)

Add Google Maps with store locations to your store! Omnium Maps adds a store locator to any page on your store. Works with any Shopify theme without editing code. Useful for any merchant with physical touchpoints: your own stores, franchise locations, service points, showrooms, offline points of sale, retail partners, and stockists. Shopify Partners and developers have additional options for deeper theme integration. Omnium Maps adds a store locator to any page on your store. Works with any Shopify theme without editing code. Useful for any merchant with physical touchpoints: your own stores, franchise locations, service points, showrooms, offline points of sale, retail partners, and stockists. Shopify Partners and developers have additional options for deeper theme integration. more Google Maps integration with automatic, CSS selector, or Liquid code placement. Unlimited maps, one map per page, up to 2000 locations per map. Two search modes: simple text search and address/ZIP with geolocation. CSV import and export with automatic geocoding for bulk location updates. 6 visual themes, 4 layout options, and custom CSS for full design control.

5.0(Reviews)

Instantly boost Google SEO & get indexed faster with a 1-click branded HTML sitemap and XML sitemap! Improve SEO visibility by generating a clean, branded HTML sitemap for your store the moment you install. Set it up in under 1 minute and manage everything inside Shopify Admin—no code required. The sitemap updates automatically as your catalog changes, and you get simple guidance to improve indexing. Auto-create your sitemap page & add it to your footer in one click. Compatible with all themes, optimized for speed. Questions? Chat with our friendly & fast customer support. Improve SEO visibility by generating a clean, branded HTML sitemap for your store the moment you install. Set it up in under 1 minute and manage everything inside Shopify Admin—no code required. The sitemap updates automatically as your catalog changes, and you get simple guidance to improve indexing. Auto-create your sitemap page & add it to your footer in one click. Compatible with all themes, optimized for speed. Questions? Chat with our friendly & fast customer support. more Create an HTML sitemap that lists products, collections, and pages instantly. Auto‑update the sitemap as you add or remove items — no maintenance. Customize colors, typography, and layout on your sitemap to match your brand. Add your HTML sitemap link to the footer menu automatically — no theme edits. Follow the built‑in step‑by‑step guide to submit your XML sitemap to Google.

5.0(Reviews)

Ongoing Upsells instantly adds a Buy Now button to the top of product pages helping to boost sales Ongoing Upsells helps you capture more sales with a sticky 'Add to Cart' bar that stays visible as shoppers scroll. This powerful upsell tool keeps key actions front and center, guiding customers smoothly toward checkout. It’s designed to boost conversions, reduce cart abandonment, and increase engagement on every product page. Easy to install, fully customizable, and built for speed—Ongoing Upsells makes it easier for shoppers to act, so you can turn more traffic into revenue. Ongoing Upsells helps you capture more sales with a sticky 'Add to Cart' bar that stays visible as shoppers scroll. This powerful upsell tool keeps key actions front and center, guiding customers smoothly toward checkout. It’s designed to boost conversions, reduce cart abandonment, and increase engagement on every product page. Easy to install, fully customizable, and built for speed—Ongoing Upsells makes it easier for shoppers to act, so you can turn more traffic into revenue. more Always Visible Add to Cart: Make it easy for customers to buy anytime, anywhere Customizable Design: Match your store's look with full control over colors/ look Fast Checkout: Get customers to checkout quicker and reduce cart abandonment

5.0(Reviews)

Use progress bar to boost average order value (AOV). What is AOV Progress Bar? When it comes to increasing your store's average order value (AOV), there's no better tool to use than AOV Progress Bar. AOV Progress Bar is an interactive progress bar that changes whenever customers add or remove items from cart. This motivates customers to subconsciously add more items to their cart in order to qualify for discounts. What is AOV Progress Bar? When it comes to increasing your store's average order value (AOV), there's no better tool to use than AOV Progress Bar. AOV Progress Bar is an interactive progress bar that changes whenever customers add or remove items from cart. This motivates customers to subconsciously add more items to their cart in order to qualify for discounts. more Rich text editor for call-to-action Customizable progress bar. Change style based on your store design. Inline widget that doesn't clutter your page. Multi-tiers discounting. No powered by message.

4.1(Reviews)

EU Hosted. Next Generation Product Recommendations with Upsell. Why choose OnVoard Product Recommender? Our app don't just display product recommendations. We make product recommendations more compelling by adding social proofs like "25% of customers bought this together" to convince customers WHY they should add product to cart. This is our app differentiation VS other product recommendations app. For GDPR, data are hosted in EU. Why choose OnVoard Product Recommender? Our app don't just display product recommendations. We make product recommendations more compelling by adding social proofs like "25% of customers bought this together" to convince customers WHY they should add product to cart. This is our app differentiation VS other product recommendations app. For GDPR, data are hosted in EU. more Style Editor: Customize product recommendations based on your store design Meta Labels: Use social proofs to enhance product recommendations Filtering: Use filters to exclude products based on rating, quantity, tags etc. Revenue Tracking: Identify assisted revenue generated recommendations Analytics: View analytics to identify top-performing recommendations

5.0(Reviews)

Personalized popups within minutes: Email, Exit intent, Spin-to-Win, Discount, Upsell and more. Increase sales, gamify the experience, collect emails and sync with your favorite tools. Boost user engagement with discount and lucky wheel pop ups. Sell more with smart product suggestions, upsell and cross sell pop ups. The drag & drop pop up builder gives you freedom, while the large number of premade templates get you started quickly. Advanced targeting system supports tons of options such as exit intent and shopping cart rules. Let's grow your business together! Increase sales, gamify the experience, collect emails and sync with your favorite tools. Boost user engagement with discount and lucky wheel pop ups. Sell more with smart product suggestions, upsell and cross sell pop ups. The drag & drop pop up builder gives you freedom, while the large number of premade templates get you started quickly. Advanced targeting system supports tons of options such as exit intent and shopping cart rules. Let's grow your business together! more Drag & drop popup builder. Rich template gallery, easy to customize and brandize Email pop ups that powered gamification widgets for engagement. Sale popups, promote products, offer discounts, free shipping bars, and more. Personalized popups with advanced targeting and smart data bindings. Smart product recommendation popups for up-selling and cross-selling.

5.0(Reviews)

Allows to create various custom fields for product. Effective product option can help to boost sales Add unlimited number of options to your product. Options include dropdown, image upload, single and multi-line text input, radio button, checkbox, date-picker, label, swatches, etc. Options will help you to sell personalized and custom products in your store. If you sell a product that has lots of options or variants and need extra fields to show in the front-end then this app will be your reliable choice. This app will help you to make your products more important to your customers. Add unlimited number of options to your product. Options include dropdown, image upload, single and multi-line text input, radio button, checkbox, date-picker, label, swatches, etc. Options will help you to sell personalized and custom products in your store. If you sell a product that has lots of options or variants and need extra fields to show in the front-end then this app will be your reliable choice. This app will help you to make your products more important to your customers. more Faster and easier way to create Extra Option fields with Conditional Logic Convert more customers and help to increase sales by decorating products Easily create custom options with value & price Add an unlimited number of options for products Options include drop-down, swatch, file upload, text, date-picker etc.

4.2(Reviews)

Add unlimited custom product options & add-ons with AI. Break the 3-option and 100-variant limit. Stop losing sales to limited product options. Optionize adds unlimited custom options to any product, with AI that builds your option sets in seconds. Break the 3-option and 100-variant limit with 16+ option types: text fields, color swatches, file uploads, date pickers, and more. Smart conditional logic shows or hides options based on customer choices. Add pricing for extras like gift wrapping or engraving. Built-in dashboard preview shows exactly how your options will appear on your store. Stop losing sales to limited product options. Optionize adds unlimited custom options to any product, with AI that builds your option sets in seconds. Break the 3-option and 100-variant limit with 16+ option types: text fields, color swatches, file uploads, date pickers, and more. Smart conditional logic shows or hides options based on customer choices. Add pricing for extras like gift wrapping or engraving. Built-in dashboard preview shows exactly how your options will appear on your store. more AI powered: Generate options with the help of AI. Build in minutes, not hours. Unlimited: Create unlimited options and option sets for your products. 16+ Option Types: Text boxes, color/image swatches, file uploads, and much more! Conditional Logic: Hide or show options dynamically based on customer choices. And more: Custom CSS, add-on pricing, preview, product linking, multi-currency

4.5(Reviews)

Personalize products w/ infinite options, text, swatches, file uploads, price addon & live preview Unlock infinite bold product options & flexible variant options beyond Shopify variant limits, built for personalization. Let customers add custom text, upload images, choose sizes, fonts & real-time preview their choices on product page. Collect customer inputs before checkout. Boost AOV with add-ons, bundles, gift wraps & extra prices. Create clean buying flow with conditional logic, option groups, cart page edits, variant-specific images. Easy to use, simple to manage, with 24/7 live support. Unlock infinite bold product options & flexible variant options beyond Shopify variant limits, built for personalization. Let customers add custom text, upload images, choose sizes, fonts & real-time preview their choices on product page. Collect customer inputs before checkout. Boost AOV with add-ons, bundles, gift wraps & extra prices. Create clean buying flow with conditional logic, option groups, cart page edits, variant-specific images. Easy to use, simple to manage, with 24/7 live support. more 20+ options: text box, color image swatch, dropdown, file upload, checkbox, date Price add on & product add-ons for bundles, upsell & track inventory Product personalizer: font picker, image upload, engraving option & live preview Multiple variant images, gift wraps, size chart, cart page variant option edit Fully compatible with all Shopify discounts, integrated into your products offer

4.9(Reviews)

Boost AOV & Conversions with Upsells, Cross-Sells, Free Gifts, Reward Bars & Custom Branding Support Customize your cart drawer with Opus advanced tool. Increase Average Order Value (AOV) with upsell funnels, progress bars, cart upsells, free gifts, BOGO (Buy X get Y) offers, frequently bought together, smart discount and urgency timers. Recover lost sales with our Abandoned Cart Analytics and understand why customers leave. Add a sticky cart button to improve conversions and reduce cart abandonment. Opus turns your cart into a revenue-generating engine with simple, code-free customization. Customize your cart drawer with Opus advanced tool. Increase Average Order Value (AOV) with upsell funnels, progress bars, cart upsells, free gifts, BOGO (Buy X get Y) offers, frequently bought together, smart discount and urgency timers. Recover lost sales with our Abandoned Cart Analytics and understand why customers leave. Add a sticky cart button to improve conversions and reduce cart abandonment. Opus turns your cart into a revenue-generating engine with simple, code-free customization. more Upsells & Cross-sell: Boost AOV with Frequently Bought Together offers Free Gifts: Encourage higher spending with Free Gifts based on cart variants. Rewards Bar: Encourage customers to buy more to get free shipping and rewards. Drive Urgency: Boost conversions with countdown timers & limited-time deals. Abandoned Cart: Recover sales by tracking & understanding why customers leave.

5.0(Reviews)

Turn your Instagram post into a sales funnel. Showcase your brand and gain trust! OT: Instagram Feed turns your Instagram into a sales channel. Create shoppable posts so customers can buy directly, choose which posts to show or hide, drag & drop to arrange, and customize layouts to match your brand. Your feed updates in real time - saving time, boosting engagement, and driving more sales. OT: Instagram Feed turns your Instagram into a sales channel. Create shoppable posts so customers can buy directly, choose which posts to show or hide, drag & drop to arrange, and customize layouts to match your brand. Your feed updates in real time - saving time, boosting engagement, and driving more sales. more Display Instagram posts in various layouts - Boost store look & build trust. Create shoppable posts that drive conversions - Tag upto 3 products in each post Full control with drag-drop - Show, hide, and arrange posts your way. Easily customize layouts & styles to perfectly match your store’s brand look. Real-time updates & performance insights - Keep your feed fresh and on-trend.

4.9(Reviews)

Our Work App lets you effortlessly showcases projects and portfolios, with category and product tags Our Work App is your go-to solution for showcasing projects and portfolios seamlessly on Shopify. This portfolio app not only allows you to display your work with stunning image displays and categorization options but also enables easy tagging of products. Whether you're a manufacturer, selling product or any creative professional, Our Work App enhances your ability to present your portfolio with clarity and style, ensuring your products are shown in real world use, and tagged for purchase. Our Work App is your go-to solution for showcasing projects and portfolios seamlessly on Shopify. This portfolio app not only allows you to display your work with stunning image displays and categorization options but also enables easy tagging of products. Whether you're a manufacturer, selling product or any creative professional, Our Work App enhances your ability to present your portfolio with clarity and style, ensuring your products are shown in real world use, and tagged for purchase. more Showcase Portfolios and Projects: Display your work in an appealing way Tag Products Easily: Highlight key products within your projects with simple tag Organize Your Portfolio: Keep your projects well-organized with catagories

0.0(Reviews)

Turn your cart into a revenue engine with slide cart upsell, free gifts, BOGO & post purchase upsell Boost AOV with cart drawer upsell and cross-sell, frequently bought together bundles in a slide cart drawer. Create one-click post purchase upsell funnels and product page upsell & add-ons to drive impulse buys. Reduce cart abandonment with free shipping bar, reward progress bar, sticky cart, mini cart, countdown timer & trust badges. Run free gifts with purchase, BOGOs, volume discounts, quantity breaks & auto discount codes. Supports subscriptions, order notes, multi-language with Markets Boost AOV with cart drawer upsell and cross-sell, frequently bought together bundles in a slide cart drawer. Create one-click post purchase upsell funnels and product page upsell & add-ons to drive impulse buys. Reduce cart abandonment with free shipping bar, reward progress bar, sticky cart, mini cart, countdown timer & trust badges. Run free gifts with purchase, BOGOs, volume discounts, quantity breaks & auto discount codes. Supports subscriptions, order notes, multi-language with Markets more Boost AOV with AI cart upsell, cross-sell, FBT & one-click post-purchase upsells Free gift with purchase, BOGO, volume discount, quantity breaks & auto discounts Post-purchase upsell funnel, product page upsell, add-ons, gift wraps & tip jars Subscriptions, countdown timer, trust badges, announcement bars & multi-language Free shipping bar, reward bar, progress bar, tiered spend rewards & sticky carts

5.0(Reviews)

Add urgency with countdown timer bars & popups on product, cart, checkout & collection pages. Turn visitors into buyers with essential countdown timer bars and urgency popups — shown on product, cart and collection pages. Run fixed-date timers for Black Friday and product launches, evergreen timers that reset per visitor, or recurring daily timers for same-day shipping cutoffs. Target by country, language, customer tags, collections, vendors and device. Fully customize colors, text, and animations to match your brand. Mobile-optimized and compatible with all Shopify themes. Turn visitors into buyers with essential countdown timer bars and urgency popups — shown on product, cart and collection pages. Run fixed-date timers for Black Friday and product launches, evergreen timers that reset per visitor, or recurring daily timers for same-day shipping cutoffs. Target by country, language, customer tags, collections, vendors and device. Fully customize colors, text, and animations to match your brand. Mobile-optimized and compatible with all Shopify themes. more Essential countdown timer bar & urgency popup on product, cart & collection page Fixed-date, evergreen & recurring timers perfect for BFCM flash sales & launches Geo-targeted & multi-language timers for stores selling globally Target by country, language, tags, collections, vendors & device type Fully customizable — colors, text, animations & schedule. No code, theme-ready

5.0(Reviews)

Go beyond themes—create conversion-ready landing & product pages fast, no coding required. PageFly gives you design freedom alongside your Shopify theme. Build landing pages, product pages, FAQ sections, and more - without code. Start with professionally designed templates or customize layouts fully with drag-and-drop. Test variations through integrations and add optional page elements like countdowns or product recommendations to support campaigns. With 130+ integrations, PageFly helps you design faster, refine smarter, and create a storefront that performs. PageFly gives you design freedom alongside your Shopify theme. Build landing pages, product pages, FAQ sections, and more - without code. Start with professionally designed templates or customize layouts fully with drag-and-drop. Test variations through integrations and add optional page elements like countdowns or product recommendations to support campaigns. With 130+ integrations, PageFly helps you design faster, refine smarter, and create a storefront that performs. more CRO-optimized templates: Build with 100+ page templates & 100+ premade sections. Build with flexibility – Drag, group & align layouts and elements freely. Data-driven A/B Testing: Identify, implement and track high-converting variants. Sales-boosting elements: countdown, upselling, trust badges,... Integrate 130+ apps: reviews, personalizers, upsells,... all to boost conversion

4.9(Reviews)

Our app takes product images from your store and converts these images into a beautiful gallery Most gallery apps, upload the images in the gallery, but our app syncs your product images so you can make your gallery without doing anything much, just configure the settings according to your requirements and your gallery is ready to install in your store. Panda Gallery is simple to create and configure. Set up is quick! installing and getting your gallery live on your site will take no time at all. # Multiple galleries supported #Quick View Box #Most Viewed Products #Product Image Slider Most gallery apps, upload the images in the gallery, but our app syncs your product images so you can make your gallery without doing anything much, just configure the settings according to your requirements and your gallery is ready to install in your store. Panda Gallery is simple to create and configure. Set up is quick! installing and getting your gallery live on your site will take no time at all. # Multiple galleries supported #Quick View Box #Most Viewed Products #Product Image Slider more Convert your product images with stunning galleries, Fast-loading image gallery You can make the product image slider using Carousel & add any page in store Display the Quick View Box on products so that visitors can easily add to cart Display Most Viewed Products, you can make a gallery of the most viewed products You can embed multiple galleries on one page & section of your store.

5.0(Reviews)

GDPR & CCPA Cookie Banner with GCM v2, Certified by Google & Microsoft with IAB TCF v2.3 integration Protect your store from legal fines with the top-rated compliance suite for GDPR, CCPA, and LGPD. We support an ever-expanding list of global data regulations and international privacy mandates. As a Shopify Plus Partner and Google Certified CMP, we ensure full compliance with brand-matched banners. Works with Google Consent Mode v2, IAB TCF v2.3, Klaviyo, and Shopify’s Privacy API. Optimized for Online Store 2.0 and headless stores. Free and paid plans with expert support. Protect your store from legal fines with the top-rated compliance suite for GDPR, CCPA, and LGPD. We support an ever-expanding list of global data regulations and international privacy mandates. As a Shopify Plus Partner and Google Certified CMP, we ensure full compliance with brand-matched banners. Works with Google Consent Mode v2, IAB TCF v2.3, Klaviyo, and Shopify’s Privacy API. Optimized for Online Store 2.0 and headless stores. Free and paid plans with expert support. more Available as Checkout Ext banner, Customer Account Ext, and Page Blocks Multilingual, translated content that aligns with your customers' language Customer Data Requests with Email Notifications, Automated GDPR Cookie Policy Cookies & Script AI Scanner with curated scan results and recommendations Google Certified CMP, TCF v2.3, Microsoft Certified CMP with Meta Pixel Support

5.0(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.