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...
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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Easily curate shoppable and customizable user-generated Instagram feed and Photo Reviews galleries Covet 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 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
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.
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.
Sell custom built products with unlimited option permutations, conditional logic, text & artwork The most powerful customization platform - complete ecosystem. Easy to use interface + AI assistant. Live preview drives 30-50% higher order value. Unmatched features: Text, images, colors, conditional logic, bundles, inventory tracking, price formulas etc. - all in one platform. Integrates with any ERP System. Perfect for jewelry, hardware, sports equipment, apparel, phone cases, home decoration. No risk. Install free. 24/7 support. Scalable infrastructure on Google Cloud. The most powerful customization platform - complete ecosystem. Easy to use interface + AI assistant. Live preview drives 30-50% higher order value. Unmatched features: Text, images, colors, conditional logic, bundles, inventory tracking, price formulas etc. - all in one platform. Integrates with any ERP System. Perfect for jewelry, hardware, sports equipment, apparel, phone cases, home decoration. No risk. Install free. 24/7 support. Scalable infrastructure on Google Cloud. 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 Variant Permutations. Robust SKU Constructor & Inventory Tracking. Interactive Printable Areas For Embroidery, Print On Demand & Neon Signs. Customizable via CSS/JS to Match Brand Design. API For External Systems.
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
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.
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... Create products with QR codes, star maps, calendars, and puzzle generators Let customers see design changes in real-time preview before they add to cart Automatically generate high-resolution files for manual or auto-fulfillment.
Powerful POD designer and online customization features for your personalized products. CustoMeow is an online customization tool built for personalized products. Seamlessly integrate the POD Designer into your store, Deliver a true personalized customization experience for your customers, Ensure your personalized orders are fulfilled easily and reliably. CustoMeow is an online customization tool built for personalized products. Seamlessly integrate the POD Designer into your store, Deliver a true personalized customization experience for your customers, Ensure your personalized orders are fulfilled easily and reliably. more True WYSIWYG with 2D, 3D, and high-fidelity mockup previews. Powerful features for apparel, gifts, and more—meeting all customization needs. AI image filters integration unlocks endless creative possibilities. Auto-generated production files sent to factories for maximum efficiency. 10+ years in personalization, always improving to meet your needs.
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.
All In One Personalizer & Customizer for Print on Demand with Live Previews & Automatic Fulfillment Sell customized products with Customily, a high-converting product customizer for ecommerce and print on demand. Let shoppers customize and personalize products in real time with powerful & trending personalization tools. This product customizer includes live preview customization that your customers will trust and love. Automatically customize and personalize orders, generate print-ready files, and connect your customizer to top print-on-demand providers to scale customization and sell more! Sell customized products with Customily, a high-converting product customizer for ecommerce and print on demand. Let shoppers customize and personalize products in real time with powerful & trending personalization tools. This product customizer includes live preview customization that your customers will trust and love. Automatically customize and personalize orders, generate print-ready files, and connect your customizer to top print-on-demand providers to scale customization and sell more! more Customize with Texts, Photos, Street/Star Maps, Calendars, AI Filters & more! Clipart, Designs, Background Removal, FaceCut, Import from Canva, all included. 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!
Boost sales with sales banners, banner sliders, sales timer, free shipping bar, Trust Badges & popup Dakaas Sales Pop up creates urgency & fomo on flash sale and show visitors that items are limited & selling fast. Create social proof & trust with trust badges among new store visitors. Add convenience & upsell with free shipping bar & sticky add to cart in sales season. Features include: Sales Notifications, Low Stock Countdown Bar, Countdown Timer, Product Visitors Counter, Sold Counter, Sales Popup, Quick View, Trust Badges, Free Shipping Bar, Announcement Bar, Sticky Cart Drawer, Share Cart Dakaas Sales Pop up creates urgency & fomo on flash sale and show visitors that items are limited & selling fast. Create social proof & trust with trust badges among new store visitors. Add convenience & upsell with free shipping bar & sticky add to cart in sales season. Features include: Sales Notifications, Low Stock Countdown Bar, Countdown Timer, Product Visitors Counter, Sold Counter, Sales Popup, Quick View, Trust Badges, Free Shipping Bar, Announcement Bar, Sticky Cart Drawer, Share Cart more Sales Pop up - Recent Sales Notification boost sales, build trust & social proof Upsell and cross-sell campaigns to boost average order value (AOV) & sales Low Stock Countdown & Sold Counter create scarcity, boost sales & add to cart PROMO BAR: promote campaign and show announcement with Promotional Bar Revenue-Oriented: track additional revenue generated by free shipping bar.
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
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
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.
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.
Power your storefront with shoppable social content and personalized product recommendations. DialogueAI transforms static storefronts into interactive shopping experiences using shoppable Reels and Storyteller modules. The platform uses advanced visitor segmentation to deliver personalized content and dynamic product recommendations in real time. Merchants can manage high-engagement visual commerce and intelligent upsells through a no-code visual editor. Get comprehensive insights and automated analysis to drive higher engagement, maximize average order value, and scale store growth. DialogueAI transforms static storefronts into interactive shopping experiences using shoppable Reels and Storyteller modules. The platform uses advanced visitor segmentation to deliver personalized content and dynamic product recommendations in real time. Merchants can manage high-engagement visual commerce and intelligent upsells through a no-code visual editor. Get comprehensive insights and automated analysis to drive higher engagement, maximize average order value, and scale store growth. more Showcase product transformations with interactive Before & After image sliders. Turn social content into sales with shoppable Reels and Storyteller modules. Deliver tailored banners and content based on real-time visitor behavior. Increase AOV with smart product recommendations and automated checkout bundles. A/B testing - Redirect URLs, CTAs, Banners, Texts or designs and ab test Apps
Boost sales with products filter and instant search If you are searching for a way to boost your stores performance by using product filter, collection filter or instant search and suggestions then "Advanced filters & Search" system could be your answer. Using this application, customers can search for products using multiple filters located on collections and search pages. If you are searching for a way to boost your stores performance by using product filter, collection filter or instant search and suggestions then "Advanced filters & Search" system could be your answer. Using this application, customers can search for products using multiple filters located on collections and search pages. more Collection page product filter Instant Search suggestions User friendly customizations
Prominently display a sale, discount code, event, or special promotion to drive customer engagement! Use a quick announcement bar to display a sale, event, or special promotion to your store visitors. In just one click, you can add a top or bottom Announcement Bar to highlight key information for your customers. Discount Announcement Bear has built-in, fully customizable layouts, fonts, and colors to match your brand perfectly. Our announcement bar layouts adapt to look amazing on any device! You can even add some custom CSS to create the design of your dreams. Try it today! Use a quick announcement bar to display a sale, event, or special promotion to your store visitors. In just one click, you can add a top or bottom Announcement Bar to highlight key information for your customers. Discount Announcement Bear has built-in, fully customizable layouts, fonts, and colors to match your brand perfectly. Our announcement bar layouts adapt to look amazing on any device! You can even add some custom CSS to create the design of your dreams. Try it today! more Highlight your store discounts & promotions with our stunning announcement bar. Customize your announcement bar by country and by product. Total design control to easily match your store's branding. Get very detailed with design by using the custom CSS feature.
Run promotions like a pro. Provide personalized incentives to your customers to increase AOV. Discount Ninja is a promotion engine that allows you to quickly set up promotions that convert. View real-time reports to know exactly how the app is growing your average order value. Personalized promotions come to life everywhere in your online store (product page, collections, cart and checkout). The app includes widgets to communicate your promotions to your audience throughout the buyer journey. They blend into your shop and allow you to stay on brand while you increase conversion. Discount Ninja is a promotion engine that allows you to quickly set up promotions that convert. View real-time reports to know exactly how the app is growing your average order value. Personalized promotions come to life everywhere in your online store (product page, collections, cart and checkout). The app includes widgets to communicate your promotions to your audience throughout the buyer journey. They blend into your shop and allow you to stay on brand while you increase conversion. more Combine & stack multiple offers: BOGO, free gift, tiered & volume discounts etc. Schedule promotions to start and stop automatically. Easily exclude collections or discounted products from sales. Offer private promotions to VIP customers using a discount link. Unlock the power of Shopify Functions for a scalable and native experience.
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About Custom CSS Apps for Shopify
Custom CSS apps are essential tools for Shopify merchants looking to enhance their store's functionality and improve customer experience. These specialized applications help store owners streamline operations, increase sales, and provide better service to their customers.
When choosing a custom css app for your Shopify store, consider factors such as features, pricing, customer support, and compatibility with your theme and other apps. Reading reviews from other merchants can also provide valuable insights into the app's performance and reliability.
The apps listed on this page represent some of the best custom css solutions available in the Shopify App Store. Each has been selected based on its functionality, user ratings, and overall value for Shopify merchants.