StoreCensus

Custom CSS Shopify Apps

Discover the best custom css apps for your Shopify store. Compare features, pricing, and reviews to find the perfect solution.

Looking for the Top Custom CSS Apps?

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

View Best Custom CSS Apps
View all categories

Push Your Sales with a Dynamic Countdown Timer Bar – Harness the Power of Drive to Purchase Unlock the Secret to Skyrocketing Sales with the Timer! Create urgency, scarcity, and FOMO to encourage customers to Buy NOW instead of delaying their purchase. Want to push your sales? Use this powerful tool daily or for special events like promotions, pre-orders, product launches, flash sales, and holidays. The countdown timer is especially effective for impact moments like Black Friday, Cyber Monday, and beyond. Simply click 'Install' and join the savvy merchants already using this Unlock the Secret to Skyrocketing Sales with the Timer! Create urgency, scarcity, and FOMO to encourage customers to Buy NOW instead of delaying their purchase. Want to push your sales? Use this powerful tool daily or for special events like promotions, pre-orders, product launches, flash sales, and holidays. The countdown timer is especially effective for impact moments like Black Friday, Cyber Monday, and beyond. Simply click 'Install' and join the savvy merchants already using this more Push Sales: Drive urgency with a customizable announcement timer bar More Conversions: Add product timers, countdown banners, or cart timers Customize Timer: Adjust text, colors, style, and placement to match your brand Stick your timer to the top bar

5.0(Reviews)

Beautiful cart drawer offering Free Gifts and In Cart Upsells, BXGY Bundles Offer multiple free gifts at once or offer customers a choice from a list of free gifts (E.g choose any 2 out of 3). Regular products from your inventory can be used as gifts. Unlike other apps, you don't need to create $0 products which can messes up inventory. If a customer adds the same item to their cart again, the normal price applies. Offers in cart upsell like frequently bought together product upsell + one click upsells & more. Offer multiple free gifts at once or offer customers a choice from a list of free gifts (E.g choose any 2 out of 3). Regular products from your inventory can be used as gifts. Unlike other apps, you don't need to create $0 products which can messes up inventory. If a customer adds the same item to their cart again, the normal price applies. Offers in cart upsell like frequently bought together product upsell + one click upsells & more. more Powered By Functions: Give any product in inventory as free gifts Multi-tier Progress Bar: Give Free Gifts & shipping based on cart total value Smart In Cart Upsells: Upsell frequently bought together items in your cart One Click upsell: Add a checkbox to upsell addon services like Gift wrapping And more marketing & conversion campaigns to boost your Average Order Value(AOV)

4.9(Reviews)

Raise Your Sales with Our Easy-to-Use Countdown Timer App! Our Countdown Timer app supports creating urgency and improving conversions! With our Countdown Timer, customers can be more aware of the events that are taking place on your website. This app is developed to raise your sales by highlighting low-stock products, special promotions, product launches, and more. Whether you're gearing up for Black Friday, Cyber Monday, or any holiday sale, our app can help you cover them with various timer options, including one-time, auto-recurring, and daily. Our Countdown Timer app supports creating urgency and improving conversions! With our Countdown Timer, customers can be more aware of the events that are taking place on your website. This app is developed to raise your sales by highlighting low-stock products, special promotions, product launches, and more. Whether you're gearing up for Black Friday, Cyber Monday, or any holiday sale, our app can help you cover them with various timer options, including one-time, auto-recurring, and daily. more Choose one-time, auto-recurring, daily, or weekly timers to fit any sale events Add a product timer, estimated delivery, countdown banner, or stock countdown Show checkout timer (cart countdown) in your cart to prevent cart abandonment Simple to customize to fit your store’s design: text, font, color, css...

5.0(Reviews)

Easily curate shoppable and customizable user-generated Instagram feed and Photo Reviews galleries Covet.pics helps you collect and show photo & video reviews from your customers. Automate & display Instagram @profile or #hashtag photos, videos & reels. Invite your customers to upload their own photo & video reviews. Run email campaigns and monitor which buyers have uploaded media. Approve their reviews for the gallery and reward them with a discount. Upload your own photos to showcase your seasonal lookbook. Run photo contests and create a community around your brand. Covet.pics helps you collect and show photo & video reviews from your customers. Automate & display Instagram @profile or #hashtag photos, videos & reels. Invite your customers to upload their own photo & video reviews. Run email campaigns and monitor which buyers have uploaded media. Approve their reviews for the gallery and reward them with a discount. Upload your own photos to showcase your seasonal lookbook. Run photo contests and create a community around your brand. more Automate & display Instagram feed: @profile or #hashtag photos, video & reels Photo Reviews - invite your customers to upload their own photos or videos Shoppable Gallery - allow users to browse and shop right inside the gallery Lookbook - use all the magnificent photos to curate & show your product photos Product Gallery - show your product photos in aspirational, real-life action

4.8(Reviews)

Showcase galleries of images in an appealing way to make your store look aesthetic. We are here to enhance your stores with our Image Gallery App. Create astonishing galleries with ease. The built-in editor provides a treasure of editing options. We know that having high-quality images is important, hence we support 4K and 8K images and optimize them to make the pictures load as quickly as possible. As we understand your time is valuable, we have provided an auto-embed feature to publish the gallery using the app on any page already created on your store. We are here to enhance your stores with our Image Gallery App. Create astonishing galleries with ease. The built-in editor provides a treasure of editing options. We know that having high-quality images is important, hence we support 4K and 8K images and optimize them to make the pictures load as quickly as possible. As we understand your time is valuable, we have provided an auto-embed feature to publish the gallery using the app on any page already created on your store. more Customize gallery layout as per your choice within the app. Create unlimited Grid, Masonry & Carousel galleries. Add lightbox/Popup view, Links, Captions & Hover effects to your images Embed anywhere just with an HTML embed snippet. Easily organize images in the gallery using Manual or Automatic Sorting.

4.8(Reviews)

Easily create registration, wholesale, feedback & any custom forms with file uploads by drag & drop. CP24 Form Builder & File Upload provides the solution to create beautiful forms with file attachments to fulfill different purposes. CP24 - Form Builder is a spam-free app that helps you to build a fully responsive, user-friendly, spectacular, and professional contact form in a short span of time. You can create different category forms like Registration, Wholesale Registration, Steps, Order Attachment, Quiz Form, Product Feedback Form, and many more with ease. & Integration with Klaviyo. CP24 Form Builder & File Upload provides the solution to create beautiful forms with file attachments to fulfill different purposes. CP24 - Form Builder is a spam-free app that helps you to build a fully responsive, user-friendly, spectacular, and professional contact form in a short span of time. You can create different category forms like Registration, Wholesale Registration, Steps, Order Attachment, Quiz Form, Product Feedback Form, and many more with ease. & Integration with Klaviyo. more Create registration, order attachments, and wholesale forms with file uploads. Set admin notification with file attachment, and customer autoresponder. Captcha support to prevent bots & all device supported forms. Klaviyo integration: Sync form submission with Klaviyo.

4.9(Reviews)

Easily create custom products with unlimited options, logic, text fields, and artwork uploads Custom Product Builder empowers Shopify stores to offer a seamless customization experience. Customers can personalize every detail—material, color, and shape—while adding text, images, and file uploads. Advanced conditional logic, flexible pricing with OpenOffice Calc, automatic Shopify inventory updates, SKU management, and out-of-stock variant hiding make customization effortless. Wholesale order options, quantity and size breakdowns, and real-time layer colorization enhance the experience. Custom Product Builder empowers Shopify stores to offer a seamless customization experience. Customers can personalize every detail—material, color, and shape—while adding text, images, and file uploads. Advanced conditional logic, flexible pricing with OpenOffice Calc, automatic Shopify inventory updates, SKU management, and out-of-stock variant hiding make customization effortless. Wholesale order options, quantity and size breakdowns, and real-time layer colorization enhance the experience. more Offer 'Build Your Own Product' Experience w/ Live Preview From Every Angle. Upload Photos / Artwork / Logos / Monograms / Text & Almost Any Other File Type. Unlimited Options. Super Complex Logic & Pricing via OpenOffice Calc Integration Interactive Printable Areas & Templates For Print On Demand & Neon Signs. Easily Customizable Interface via CSS / Liquid to Match Your Brand Book Design.

4.5(Reviews)

Add Upsells, Cross-Sells and Bundles Across 8 High-Impact Locations to Drive Sales! Increase your AOV with personalized Upsells and Cross-Sells at key moments throughout the shopping journey. Our app offers 8+ strategic upsell locations to display your upsell offers, from Product Page and Cart to Checkout and Post-Purchase Upsell—ensuring every opportunity to maximize revenue! Your all-in-one upsell app with AI-powered auto-suggestions to assign upsells, plus customizable widgets that seamlessly match your brand’s design—no coding needed. 📍 Where You Can Upsell & Cross-Sell: Increase your AOV with personalized Upsells and Cross-Sells at key moments throughout the shopping journey. Our app offers 8+ strategic upsell locations to display your upsell offers, from Product Page and Cart to Checkout and Post-Purchase Upsell—ensuring every opportunity to maximize revenue! Your all-in-one upsell app with AI-powered auto-suggestions to assign upsells, plus customizable widgets that seamlessly match your brand’s design—no coding needed. 📍 Where You Can Upsell & Cross-Sell: more Product Page – Highlight bestsellers and upsell bundles. Carts & Pop-ups – Include last-minute upsells at the Cart Drawer (Mini-Cart). Post-Purchase Page – One-click upsells after checkout. Checkout Page – Encourage higher-value upsell purchases before payment. Home Page & Collections Page – Highlight bestsellers, upsells and cross-sells.

4.9(Reviews)

Create Upsell & cross-sell bundles with discounts to achieve higher sales Cross-sell upsell master offers a wide range of widgets to the customer in which different bundles/funnels can be created with discounts and special offers like percentage discounts or fixed off from the total product prices. The app offers multiple ways like bundle offers, volume discounts, and frequently bought-together offers of the products in simultaneous ways. Also, the app offers some special discounts for a selected group of products to generate higher sales. Cross-sell upsell master offers a wide range of widgets to the customer in which different bundles/funnels can be created with discounts and special offers like percentage discounts or fixed off from the total product prices. The app offers multiple ways like bundle offers, volume discounts, and frequently bought-together offers of the products in simultaneous ways. Also, the app offers some special discounts for a selected group of products to generate higher sales. more Multiple upsell & cross-sell discount bundles can be created on different pages Create bulk quantity discounts, upsell frequently brought together products Fully customizable template to match store color theme

5.0(Reviews)

Build Unlimited Forms with ease and hassle-free. No limits and no restrictions on using any feature. * Fully Customize the fields and the look and feel * Can store form submissions in App or email or both. * Setup email recipients for form submissions * Set optional Auto-Responders for all of your forms * Mobile responsive. * Enable Captcha to prevent fraudulent form submissions. * Use SMTP to send all emails. * Mailchimp Integration * Accept Payments with Stripe and PayPal. * Google Analytics * Webhooks * Export Form Submissions in an excel sheet. * Customize redirect URL after form submission * Fully Customize the fields and the look and feel * Can store form submissions in App or email or both. * Setup email recipients for form submissions * Set optional Auto-Responders for all of your forms * Mobile responsive. * Enable Captcha to prevent fraudulent form submissions. * Use SMTP to send all emails. * Mailchimp Integration * Accept Payments with Stripe and PayPal. * Google Analytics * Webhooks * Export Form Submissions in an excel sheet. * Customize redirect URL after form submission more We help you to save your time in building a custom and advanced form in minutes. Embed form anywhere by short code. Email alerts to admin and customer on form submissions.

4.5(Reviews)

Product customizer that makes it easy for Print on Demand stores to sell personalized products. Customall is the ultimate product personalizer for Print on Demand (POD) store, designed to maximize efficiency & boost sales. With Customall, you can easily set up custom products, offering a wide range of personalization options for your customers. Our app connects with leading Print partners like Dreamship, Printify, Printway, Printful, Gearment to automate fulfillment. Plus, real-time previews ensure that your personalized products convert easily with less return. Customall is the ultimate product personalizer for Print on Demand (POD) store, designed to maximize efficiency & boost sales. With Customall, you can easily set up custom products, offering a wide range of personalization options for your customers. Our app connects with leading Print partners like Dreamship, Printify, Printway, Printful, Gearment to automate fulfillment. Plus, real-time previews ensure that your personalized products convert easily with less return. more Personalization options: custom texts, custom photo upload, clipart... Support text effects, background remover, face cutout... Unique custom products with: QR code, calendar, crossword puzzle, moon phase Let customers check the final customized product with live preview Send orders to leading Print-on-Demand providers. Export ready-to-print files.

4.9(Reviews)

Boost your conversions with CustoMeow for personalized products. The personalized market is a world apart from traditional sales. If you want to boost your custom conversion rates, you absolutely need to deliver a superior customization experience for your customers—and that’s exactly where CustoMeow shines. With the excellent user-friendly design tools and the powerful customization features, powered by AI, you can now create custom functions with a single click—amazing, right? Plus, we’ve added support for upselling and add-on pricing. The personalized market is a world apart from traditional sales. If you want to boost your custom conversion rates, you absolutely need to deliver a superior customization experience for your customers—and that’s exactly where CustoMeow shines. With the excellent user-friendly design tools and the powerful customization features, powered by AI, you can now create custom functions with a single click—amazing, right? Plus, we’ve added support for upselling and add-on pricing. more Create unlimited product options fields with advanced conditional logic. Added your own custom preview to enhance the shopping experience. Upload photo to support cropping, face recognition, cutouts, and filters. Support for color swatches and variant images to visualize customizations. Reduce returns and increase retention with product personalizer.

3.9(Reviews)

No-code A/B Testing and Website Personalization CRO platform built for marketers CustomFit.ai is an easy no-code platform for marketers for A/B testing, personalization, and popups. Easily run A/B tests on any page—product pages, home page, checkout page—to identify what drives the most sales. Beyond modifying existing content, you can add new content blocks with drag-and-drop simplicity, such as UGC video reels, recently viewed or purchased items, and more. Leverage AI Machine Learning to optimize conversion rates (CRO), boost revenue, and enhance upselling strategies CustomFit.ai is an easy no-code platform for marketers for A/B testing, personalization, and popups. Easily run A/B tests on any page—product pages, home page, checkout page—to identify what drives the most sales. Beyond modifying existing content, you can add new content blocks with drag-and-drop simplicity, such as UGC video reels, recently viewed or purchased items, and more. Leverage AI Machine Learning to optimize conversion rates (CRO), boost revenue, and enhance upselling strategies more AI Conversion Optimization: Leverage Machine Learning to optimize conversions No code, A/B Testing, Split URL testing, Theme A/B testing, and A/B/N testing Easy to use No code visual editor to personalize product pages & landing pages Add new blocks like Video Reels, Recently Viewed items, and more via drag-n-drop SEO-friendly with fast performance and a flicker-free experience.

5.0(Reviews)

Product customizer for Print on Demand. Design, sell, and automate fulfillment, fast and easily! Customily makes product personalization simple and powerful. Offer engaging & high-converting customized products with real-time previews, boosting customer satisfaction and conversions. Unlimited tools to allow your shoppers to create unique custom products with a smooth shopping experience. Connect with top print on demand providers & automate fulfillment to save time and reduce returns. Improve your business with a product customizer designed to increase sales and streamline operations! Customily makes product personalization simple and powerful. Offer engaging & high-converting customized products with real-time previews, boosting customer satisfaction and conversions. Unlimited tools to allow your shoppers to create unique custom products with a smooth shopping experience. Connect with top print on demand providers & automate fulfillment to save time and reduce returns. Improve your business with a product customizer designed to increase sales and streamline operations! more Personalization options: Texts, Photos, Textures, Crossword, Street & Star Maps. Clipart & Designs + Background Removal & Face Cut tools, included in the App! Export ready-to-print, engrave or laser-cut files! No extra manual work needed! Connect with different Print-on-Demand (POD) providers to AUTOMATE FULFILLMENT! Global support team to help your products look stunning. LIVE CHAT included!

4.6(Reviews)

Boost Your Sales with a Countdown Timer—create urgency that drives customers to make a more purchase Our Sales Pop app creates instant sales notifications that grab visitors attention and encourage them to make quick purchases. When peoples see a Sales Pop notification, they understand that their favorite items are in high demand and selling out fast. This sense of urgency helps turn casual visitors into eager buyers. The Sale Timer is a powerful new tool to boost your sales! It’s ideal for achieving the best results during Black Friday, Cyber Monday, and beyond. Boost your sales today! Our Sales Pop app creates instant sales notifications that grab visitors attention and encourage them to make quick purchases. When peoples see a Sales Pop notification, they understand that their favorite items are in high demand and selling out fast. This sense of urgency helps turn casual visitors into eager buyers. The Sale Timer is a powerful new tool to boost your sales! It’s ideal for achieving the best results during Black Friday, Cyber Monday, and beyond. Boost your sales today! more Boost sales with engaging Upsell popups by adding a Countdown Timer. Add multiple popups with eye-catching animations for enhanced user engagement. Live preview your sales popups: Customize text, colors, placement and more. Set any schedule: Auto start and stop your sales popups with custom timing. Fully customize your sales popups with built-in CSS for complete design control.

5.0(Reviews)

Easily add customized age checks, prevent content theft, and block unwanted traffic by IP or country Dashi Security Suite makes store protection easy. Quickly set age verification pop-ups tailored by product or region, prevent content theft by disabling copy-paste and right-click actions, and easily block or redirect visitors by IP address or country. Perfect for regulated industries or merchants prioritizing security, Dashi helps you stay compliant, protect your valuable content, and control store access—all without technical hassle. Dashi Security Suite makes store protection easy. Quickly set age verification pop-ups tailored by product or region, prevent content theft by disabling copy-paste and right-click actions, and easily block or redirect visitors by IP address or country. Perfect for regulated industries or merchants prioritizing security, Dashi helps you stay compliant, protect your valuable content, and control store access—all without technical hassle. more Flexible age verification on specific pages or by country with customized design Disable copy, right-click, and developer tools to protect content Prevent fraudulent orders by blocking high-risk countries, IPs, and bots

5.0(Reviews)

Easily add and customize size charts & guides to help customers find the perfect fit. Create clean, responsive size charts for any product and customize them with text, images, and tables. Perfect for apparel, shoes, and detailed body measurements. Improve conversions and reduce returns with fit finders. The app is compatible with Hydrogen stores and works with any 2.0 theme. We've provided 11 presets for quick setup, along with an easy-to-follow guide to get started. Create clean, responsive size charts for any product and customize them with text, images, and tables. Perfect for apparel, shoes, and detailed body measurements. Improve conversions and reduce returns with fit finders. The app is compatible with Hydrogen stores and works with any 2.0 theme. We've provided 11 presets for quick setup, along with an easy-to-follow guide to get started. more Compatible with any 2.0 themes and Hydrogen stores Quick setup with 11 size chart presets Unit conversion ability between inch and cm Select size charts based on customer's location Floating and inline buttons to display

0.0(Reviews)

Get a Discount Box on your cart. Minimise your abandoned cart and maximise your conversion rate. Our app is designed to help online stores reduce cart abandonment rates and increase conversion rates. By offering a customisable discount box on the cart page, customers are more likely to complete their purchase, knowing they can apply the code at the right place and time. Our app seamlessly integrates with your store and helps your customers easily find and apply a coupon code directly in the cart. With our app, you can improve your customer's shopping experience and enhance your sales. Our app is designed to help online stores reduce cart abandonment rates and increase conversion rates. By offering a customisable discount box on the cart page, customers are more likely to complete their purchase, knowing they can apply the code at the right place and time. Our app seamlessly integrates with your store and helps your customers easily find and apply a coupon code directly in the cart. With our app, you can improve your customer's shopping experience and enhance your sales. more Supports cart page and cart drawer Easy to install and setup the discount box Allows you to create and display multiple discount boxes on various pages Supports discount share links.

4.4(Reviews)

SVG Web Component to render and animate clock dials. Includes counter functionality and a JS API. DeDial is a set of Web Components whose primary purpose is to draw circular dials, counters, and timers. Dials can be used to represent animated gauges, or the ticks on a clock dial, or segments of a targeting sight. Additionally, animated countdowns can be initiated to add a more dynamic feel to any store. These components are intended for use by Theme designers, or advanced users familiar with CSS, that are looking to compose custom animations within the Theme Editor. DeDial is a set of Web Components whose primary purpose is to draw circular dials, counters, and timers. Dials can be used to represent animated gauges, or the ticks on a clock dial, or segments of a targeting sight. Additionally, animated countdowns can be initiated to add a more dynamic feel to any store. These components are intended for use by Theme designers, or advanced users familiar with CSS, that are looking to compose custom animations within the Theme Editor. more Render varied circular dials for static or animated displays, and clock faces. Animated forward and reverse counter with optional JavaScript interface. Smooth SVG scaling and CSS support from the theme editor.

0.0(Reviews)

AB testing & AI Personalization CRO Platform. Sales Driven, No-code, Robust & Intuitive Dialogue empowers brands to visually transform & optimize their store with no-code A/B testing, allowing precise personalization of every touchpoint including PDP and checkout using AI-driven product recommendations, bundles, cart and checkout upsells, Shoppable Stories & Shoppable Videos, personalized content, and post-purchase offers. With AI-based 1:1 personalization and segmentation - users convert & rebuy. Dialogue offers a powerful alternative to Google Optimize, shoplift & Intelligems. Dialogue empowers brands to visually transform & optimize their store with no-code A/B testing, allowing precise personalization of every touchpoint including PDP and checkout using AI-driven product recommendations, bundles, cart and checkout upsells, Shoppable Stories & Shoppable Videos, personalized content, and post-purchase offers. With AI-based 1:1 personalization and segmentation - users convert & rebuy. Dialogue offers a powerful alternative to Google Optimize, shoplift & Intelligems. more Dynamic AI recommendations, Cart & Checkout cross-selling, Post purchase offers AB testing - Redirect URLs, CTAs, Banners, Texts, Apps (Like Google Optimize) Increase AOV with “Frequently Bought Together” Bundles. Add discounts & segments Personalized campaigns, personalized banners and segmented content, Video slider Shoppable Stories & Shoppable videos - connect instagram & TikTok with ChatGPT

5.0(Reviews)

Related Categories

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.