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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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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)

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.

4.8(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)

Slide cart drawer with in cart upsell with free gift, FBT, post purchase upsell, checkout upsell Oxify turns your slide cart drawer into a revenue engine with in-cart upsell, cross-sell & one-click upsells. Add post purchase upsell, thank you page upsell & product page upsell to lift AOV after checkout. Show frequently bought together bundles, free gift with purchase, BOGO, volume discounts & upselling with discount codes. Cut cart abandonment with a free shipping bar, reward progress bar, countdown timer, sticky cart & trust badges. Supports subscriptions, multi-language & multi-currency. Oxify turns your slide cart drawer into a revenue engine with in-cart upsell, cross-sell & one-click upsells. Add post purchase upsell, thank you page upsell & product page upsell to lift AOV after checkout. Show frequently bought together bundles, free gift with purchase, BOGO, volume discounts & upselling with discount codes. Cut cart abandonment with a free shipping bar, reward progress bar, countdown timer, sticky cart & trust badges. Supports subscriptions, multi-language & multi-currency. more Slide cart drawer with in-cart upsell, cross-sell & product recommendations Post purchase upsell & thank you page upsell funnels to boost AOV after checkout Product page upsell, frequently bought together bundles & one-click cart upsell Free gift with purchase, BOGO, volume discounts & upselling with discount codes Free shipping bar, reward progress bar, countdown timer, sticky cart & badges

5.0(Reviews)

Countdown timer bar, sticky banner & FOMO popup for flash sales, BFCM, launches & cart urgency Oxify Countdown Timer Bar adds a countdown timer bar, sticky banner & urgency popup to your store to create FOMO and drive action. Run fixed-date timers for Black Friday, Cyber Monday & product launches, evergreen timers that reset per visitor, daily recurring timers for shipping cut-offs, or session timers for cart urgency. Place on product, cart, drawer, landing or collection pages. Target by country, language, customer tags, collection, vendor & device. No code, mobile-friendly, theme-ready. Oxify Countdown Timer Bar adds a countdown timer bar, sticky banner & urgency popup to your store to create FOMO and drive action. Run fixed-date timers for Black Friday, Cyber Monday & product launches, evergreen timers that reset per visitor, daily recurring timers for shipping cut-offs, or session timers for cart urgency. Place on product, cart, drawer, landing or collection pages. Target by country, language, customer tags, collection, vendor & device. No code, mobile-friendly, theme-ready. more Countdown timer bar, sticky banner & urgency popup on product & cart pages Fixed-date, evergreen, daily & session timers for BFCM, flash sales & launches Geo-target by country, language, tags, collection, vendor & device — no code Built-in templates with full color, font, animation & schedule customization Lightweight, mobile-friendly & compatible with Dawn, Horizon & all OS 2.0 themes

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, Google, Microsoft certified, ADA/WCAG Accessibility Widget & EU Withdrawal Protect your store with the premier compliance suite for global privacy laws, Web Accessibility (ADA/WCAG), and EU Withdrawal. As a Shopify Plus Partner and Google/Microsoft Certified CMP, Pandectes ensures your store meets the highest standards. We provide brand-matched banners for GDPR, CCPA, etc, plus an accessibility widget for inclusive browsing. Fully integrated with Google Consent Mode v2, IAB TCF v2.3, and Shopify Privacy API. Optimized for Online Store 2.0 and headless stores. Protect your store with the premier compliance suite for global privacy laws, Web Accessibility (ADA/WCAG), and EU Withdrawal. As a Shopify Plus Partner and Google/Microsoft Certified CMP, Pandectes ensures your store meets the highest standards. We provide brand-matched banners for GDPR, CCPA, etc, plus an accessibility widget for inclusive browsing. Fully integrated with Google Consent Mode v2, IAB TCF v2.3, and Shopify Privacy API. Optimized for Online Store 2.0 and headless stores. 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 & Microsoft Certified CMP with TCF v2.3 and Consent Mode

5.0(Reviews)

Transform your store with Make, Model, Year search for an efficient shopping experience. Enable Make, Model, Year, and optional Submodel search to enhance customer convenience and increase sales. This feature helps shoppers quickly find the right products for their vehicles. With persistent vehicle filtering, customers’ selections are saved across sessions, ensuring they always see relevant products. Simplify product management with easy bulk data import via CSV/Excel, and allow customers to save their preferred vehicles in 'My Garage' for faster future shopping Enable Make, Model, Year, and optional Submodel search to enhance customer convenience and increase sales. This feature helps shoppers quickly find the right products for their vehicles. With persistent vehicle filtering, customers’ selections are saved across sessions, ensuring they always see relevant products. Simplify product management with easy bulk data import via CSV/Excel, and allow customers to save their preferred vehicles in 'My Garage' for faster future shopping more Make, Model, Year collection filtering with Submodel support Persistent vehicle filtering Bulk data importing via CSV/Excel Save vehicles to 'My Garage'

4.9(Reviews)

Generate sale bars, countdowns & free-shipping promos with AI — no code needed. Generate eye-catching announcement bars in seconds with built-in AI. Describe a promotion and Pasilo writes the copy, picks the colors, and sets the countdown — no design skills needed. Run sales, countdown timers, free-shipping bars, news tickers, and rotating messages from one app. The native theme embed survives theme updates. Add scheduling, regional variants, A/B testing, and auto-translation as you grow. Start free with every bar type unlocked. Generate eye-catching announcement bars in seconds with built-in AI. Describe a promotion and Pasilo writes the copy, picks the colors, and sets the countdown — no design skills needed. Run sales, countdown timers, free-shipping bars, news tickers, and rotating messages from one app. The native theme embed survives theme updates. Add scheduling, regional variants, A/B testing, and auto-translation as you grow. Start free with every bar type unlocked. more AI assistant writes your copy, picks colors, and sets the timer Countdown timers in five styles — Flip Cards, Boxes, Circles & more Rotating messages, news tickers, fade & typewriter effects Schedule start/end dates or run recurring weekly campaigns Auto-translate bars into your store's languages

5.0(Reviews)

Provide visitors with the option to accept or decline cookies with customizable Cookie bar. In the digital market sphere, your online store's compliance with Europe's GDPR (General Data Protection Regulation) is of vital importance. Pasilobus EU Cookie Bar simplifies this process. Unlike confusing alternatives, it is user-friendly and does not slow down your store. It complies with GDPR, CCPA (California Consumer Privacy Act), and VCDPA (Virginia Consumer Data Protection Act), bolstering your store's global credibility. In the digital market sphere, your online store's compliance with Europe's GDPR (General Data Protection Regulation) is of vital importance. Pasilobus EU Cookie Bar simplifies this process. Unlike confusing alternatives, it is user-friendly and does not slow down your store. It complies with GDPR, CCPA (California Consumer Privacy Act), and VCDPA (Virginia Consumer Data Protection Act), bolstering your store's global credibility. more Cookie bar for GDPR to comply with EU regulations & California Privacy Act Fully customizable cookie bar that matches the style of your store. Supersonic mode so that the speed of your store is not affected. Automated styling - Picks up your store’s font and design. One-click installation, no coding required.

0.0(Reviews)

Real-time social proof. Live visitors, cart activity, sales popups and recently viewed products. Help customers buy with confidence using real-time social proof on product pages. Display live visitor counts, cart activity, sales totals, and purchase popups powered by actual store data, not fake numbers. Includes a recently viewed widget with cross-device sync so returning customers pick up where they left off. Counters update instantly. Works with any theme through drag-and-drop blocks. Help customers buy with confidence using real-time social proof on product pages. Display live visitor counts, cart activity, sales totals, and purchase popups powered by actual store data, not fake numbers. Includes a recently viewed widget with cross-device sync so returning customers pick up where they left off. Counters update instantly. Works with any theme through drag-and-drop blocks. more Live visitor count, cart activity, and sales badges Recent purchase popup notifications from real orders Recently viewed products with cross-device sync Real data from your store, no fake numbers Product analytics and customer browsing insights

4.5(Reviews)

Add a sticky add-to-cart bar to every page. Always-visible cart access with banners. Customers leave product pages and forget to buy. Sticky Cart keeps an add-to-cart bar visible as they scroll, so they can add items without scrolling back up. On non-product pages, it shows a cart summary with item count and total. Add banner messages for announcements, countdown urgency timers, or free shipping progress bars. Control where it appears with page, product, collection, customer, and market targeting rules. Works on mobile and desktop with full color customization. Customers leave product pages and forget to buy. Sticky Cart keeps an add-to-cart bar visible as they scroll, so they can add items without scrolling back up. On non-product pages, it shows a cart summary with item count and total. Add banner messages for announcements, countdown urgency timers, or free shipping progress bars. Control where it appears with page, product, collection, customer, and market targeting rules. Works on mobile and desktop with full color customization. more Sticky add-to-cart bar on product pages with variant selector Cart summary bar with item count on all other pages Banner messages: custom, countdown timer, free shipping bar Display rules for pages, products, customers, and markets Analytics dashboard tracking carts generated and events

0.0(Reviews)

Easily add stores & dealer locator map with customizable maps & filters that matches your brand Easily integrate a searchable store map to your store. Our intuitively designed locator lowers customer inquiries, and fosters brand trust. Highlight your outlets, dealers, and more while gaining insights from search analytics about where your customers are seeking your products. Provide custom filters to help customer narrow down results. Get started with clicks and no coding required. Easily integrate a searchable store map to your store. Our intuitively designed locator lowers customer inquiries, and fosters brand trust. Highlight your outlets, dealers, and more while gaining insights from search analytics about where your customers are seeking your products. Provide custom filters to help customer narrow down results. Get started with clicks and no coding required. more Manage store listings from intuitive dashboard or import via spreadsheets Mobile friendly with search filters & options to help simplify shopping Customizable map themes, colors, layout & translations Powerful analytics to track where customers are looking for your products Get started with few clicks and no coding required.

5.0(Reviews)

Easy to show your Portfolio, Photo Gallery, Image Gallery, Video anywhere on your store. What’s a professional photographer without a portfolio? What about an artist, agency, or freelance writer? With content creation comes the task of displaying your work online in order to find the best-fitting clients. A portfolio serves as your first line of offense. A place to show the best of the best. A hub to say exactly which types of niches you focus on. An easy way to build a portfolio is to find a portfolio, photo gallery or image gallery app. What’s a professional photographer without a portfolio? What about an artist, agency, or freelance writer? With content creation comes the task of displaying your work online in order to find the best-fitting clients. A portfolio serves as your first line of offense. A place to show the best of the best. A hub to say exactly which types of niches you focus on. An easy way to build a portfolio is to find a portfolio, photo gallery or image gallery app. more Portfolio, Photo Gallery or Image Gallery: Responsive & mobile friendly Bulk upload unlimited photos and arrange photo positions quickly. Save more time Photo Gallery, Image Gallery, Video anywhere on your store with multiple layouts Video gallery. Lookbook gallery. Grid, Masonry Template. 35+ hover effects. Drag & Drop to sort order photo quickly.

4.7(Reviews)

Product Sliders & Carousel can make your store show a large number of products in a professional way Product Slider & Carousel app allows you to create easily attractive product slider on any page.(Featured products, recommended / related products, products slider by collection, recently viewed, product slider by tag, collections). Product Slider helps you showcase featured, best-selling, or promotional products with a modern, fully responsive carousel. No coding needed – just drag, drop, and configure in minutes. Supports all themes, loads fast, and optimized for conversions. Product Slider & Carousel app allows you to create easily attractive product slider on any page.(Featured products, recommended / related products, products slider by collection, recently viewed, product slider by tag, collections). Product Slider helps you showcase featured, best-selling, or promotional products with a modern, fully responsive carousel. No coding needed – just drag, drop, and configure in minutes. Supports all themes, loads fast, and optimized for conversions. more Products slider by collection, Featured, Tag, Related, New, Bestseller, Recently Easy to show your product slider on homepage, pages, product, collection or blog Helps highlight specific products and it will allow you to increase conversions. Customize slider (items, speed,..). Lazy load. Support RTL. Show Add to Cart, View more button. Multi-currency compatibility

5.0(Reviews)

Boost Sales & Enhance Your Shop w/ Unlimited Product Options, Variants Options, & Product Customizer Empower your Shopify store with unlimited product options. From jewelry engravings to texture preferences & beyond, use extra product variants fields for more sales. It goes beyond simply creating product variants, the product customizer app creates unlimited variant options including image & color swatches and image & file upload fields for full product personalization. More than just a product customizer, it empowers merchants to up-charge for custom product options to boost revenue. Empower your Shopify store with unlimited product options. From jewelry engravings to texture preferences & beyond, use extra product variants fields for more sales. It goes beyond simply creating product variants, the product customizer app creates unlimited variant options including image & color swatches and image & file upload fields for full product personalization. More than just a product customizer, it empowers merchants to up-charge for custom product options to boost revenue. more ADD UNLIMITED PRODUCT OPTIONS FIELDS - to unlimited product pages on your store UPCHARGE PRICING - charge more $$$ for options to increase Shopify revenue 1-CLICK OPTIONS TEMPLATES - create and apply whole templates (sets) of fields PREMIUM OPTIONS FIELD TYPES - File uploads, color or image swatches & much more ROBUST CONDITIONAL LOGIC - hide/display options fields based on prior selections

4.7(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.