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Custom HTML Shopify Apps

Find top-rated Custom HTML tools for Shopify. Explore 20+ apps with detailed reviews, pricing information, and feature comparisons.

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

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Add 1-Click COD Form for Dropshipping & boost your Conversions and AOV with Upsells, Offers, OTP ... Make cash payments effortless with EasySell. Offer your customers a smooth shopping experience using a 1-Click advanced Cash On Delivery Form. Let your customers order with a simple COD order form. Orders can be exported automatically to your Google Sheets, grow your AOV with Upsells and quantity offers, Recover potential lost sales with Downsells and cart recovery, Minimize fake orders through phone number verification via SMS/WhatsApp, and track events with Facebook, TikTok, Snapchat, Google.. Make cash payments effortless with EasySell. Offer your customers a smooth shopping experience using a 1-Click advanced Cash On Delivery Form. Let your customers order with a simple COD order form. Orders can be exported automatically to your Google Sheets, grow your AOV with Upsells and quantity offers, Recover potential lost sales with Downsells and cart recovery, Minimize fake orders through phone number verification via SMS/WhatsApp, and track events with Facebook, TikTok, Snapchat, Google.. more Add an easily customizable Cash on Delivery (COD) order form to your store. Add Quantity offers, Discounts, Downsells, Post-purchase and One-Tick Upsells Export Cash on Delivery orders automatically to Google Sheets. Verify phone numbers by OTP, block IP addresses, and limit postal codes. Add tracking pixels (Facebook, Tiktok, Google, Snapchat, Pinterest).

4.9(Reviews)

Showcase your products with multiple variant images, videos, and 3D models to increase conversions. Variant Gallery lets you display multiple variant images, videos, or 3D models for each product variant, decluttering your product page, helping merchants find what they need, and increasing conversions. Each variant image helps customers better understand product options at a glance. Variant Gallery installs seamlessly without altering your theme and works out of the box—no coding or complex setup needed. Managing variant images and other media is simple and can be done in just a few clicks. Variant Gallery lets you display multiple variant images, videos, or 3D models for each product variant, decluttering your product page, helping merchants find what they need, and increasing conversions. Each variant image helps customers better understand product options at a glance. Variant Gallery installs seamlessly without altering your theme and works out of the box—no coding or complex setup needed. Managing variant images and other media is simple and can be done in just a few clicks. more Display multiple variant images, videos, or 3D models for each product option Organize variant images and other media by options like color, size, or material Manage variant images and other media easily with an intuitive setup Works with popular themes, and we can tailor it for your custom theme

3.7(Reviews)

Easy and smart page builder: build any stunning, sales-ready pages - now supercharged with AI EComposer Landing Page builder lets you design any Shopify page fast with a flexible drag-and-drop editor, smart AI tools, and a huge library of stunning templates for any niche. From Landing, Homepage, Collection page, Product, Blog page, Cart page, Footer, Coming Soon Page, 404 page & any theme section. No code, no limits, no slowing down your site. Replace costly apps with built-in extensions that boost sales. Get the freedom to build the store you imagined - with 24/7 support by your side. EComposer Landing Page builder lets you design any Shopify page fast with a flexible drag-and-drop editor, smart AI tools, and a huge library of stunning templates for any niche. From Landing, Homepage, Collection page, Product, Blog page, Cart page, Footer, Coming Soon Page, 404 page & any theme section. No code, no limits, no slowing down your site. Replace costly apps with built-in extensions that boost sales. Get the freedom to build the store you imagined - with 24/7 support by your side. more Build any page & section: landing to home page, collection page, product, etc. Smart AI for layout builder, element editing, image & content generator 300+ high-converting templates & countless sections for any niche 30+ CRO add-ons: Cross-sell, upsell, popup, back in stock, compare, wishlist etc Advanced: Page Analytics, Global Blocks, Multi-market, Lazy load, etc.

4.9(Reviews)

Add urgency with a live cart countdown timer to boost conversions and reduce cart abandonment fast. Create urgency where it matters most - in the cart. Boost your sales and reduce cart abandonment with a live cart countdown timer that creates urgency and FOMO. ET Countdown Cart Timer adds a reserve message and ticking timer to your cart page or drawer, encouraging faster checkout. Customise the styles and expiry action to match your brand. Easy to install, mobile-friendly, and ideal for flash sales, Black Friday (BFCM), limited-time offers, pre-orders, and abandoned cart recovery campaigns. Create urgency where it matters most - in the cart. Boost your sales and reduce cart abandonment with a live cart countdown timer that creates urgency and FOMO. ET Countdown Cart Timer adds a reserve message and ticking timer to your cart page or drawer, encouraging faster checkout. Customise the styles and expiry action to match your brand. Easy to install, mobile-friendly, and ideal for flash sales, Black Friday (BFCM), limited-time offers, pre-orders, and abandoned cart recovery campaigns. more Supports all types of carts (cart pages, side carts can cart popoups) Set different messages for single or multi-item carts. Configure action after timer expires (extend timer/ clear cart/ go to homepage) Add urgency with reservation clock timer and reduce cart abandonment Works on all themes, mobile-friendly, no coding needed

4.9(Reviews)

Through upselling on the cart page and cart drawer, Cart Upsell Elite contributes to higher income You can set up an amazing cart experience with Ecom Trend Cart Upsell Elite by creating fully effective and configurable upsell options. You may encourage clients to make larger purchases and save more money by utilizing our app. With our customizable options, you can create designs that complement the style and feel of your website. Cart Upsell Elite allows you to add upselling features to both the cart page and drawer. With Ecom Trend Cart Upsell Elite, you can raise conversions and AOV. You can set up an amazing cart experience with Ecom Trend Cart Upsell Elite by creating fully effective and configurable upsell options. You may encourage clients to make larger purchases and save more money by utilizing our app. With our customizable options, you can create designs that complement the style and feel of your website. Cart Upsell Elite allows you to add upselling features to both the cart page and drawer. With Ecom Trend Cart Upsell Elite, you can raise conversions and AOV. more Add upselling blocks to both the cart page and drawer Boosts AOV Highly Customizable Simple setup Unlimited upsell rules

0.0(Reviews)

Accurate and personalized size and fit recommendations for online fashion stores EyeFitU enhances online fashion stores with AI-driven size recommendations, improving customer confidence and reducing returns. Our SizeEngine™ platform includes SizeFinder™ for precise sizing and SizeVisualizer™ for an intuitive fit visualization, ensuring a seamless shopping experience. Trusted by major brands, we help fashion retailers optimize conversions and boost sales. EyeFitU enhances online fashion stores with AI-driven size recommendations, improving customer confidence and reducing returns. Our SizeEngine™ platform includes SizeFinder™ for precise sizing and SizeVisualizer™ for an intuitive fit visualization, ensuring a seamless shopping experience. Trusted by major brands, we help fashion retailers optimize conversions and boost sales. more SizeFinder - recommendation engine that provides accurate size recommendation SizeVisualizer - visualization engine assisting shoppers with identifying a fit User Generated Data & Machine Learning for accurate size and fit recommendations Customers need only capture their fit preference once to receive results for all Simple body measurement size tables on a product pages as an option

4.1(Reviews)

Quick Buy Button- Customers buy products directly from the homepage, collection page & products list Quick Buy Button enhances the customer experience and reduces abandoned carts by making checkout as quick as possible. Quickly buy products from home or collection pages or products list and navigate the customer directly to the checkout page. The eye-catching quick buy button draws user attention to impulse purchases. Quick buy button lets customers can add products to their cart from home or jump straight to checkout. Improve conversion rate with a quick purchase button option. Buy Now Button! Quick Buy Button enhances the customer experience and reduces abandoned carts by making checkout as quick as possible. Quickly buy products from home or collection pages or products list and navigate the customer directly to the checkout page. The eye-catching quick buy button draws user attention to impulse purchases. Quick buy button lets customers can add products to their cart from home or jump straight to checkout. Improve conversion rate with a quick purchase button option. Buy Now Button! more Let customers buy products directly from the homepage and collection pages Let Customers add to cart products from the homepage or collection page Quick Buy button triggers impulse purchase and reduces abandoned cart Quick Add to Cart Icon button and text button to buy from the collection page Buy Now Button on the home page or collection page and skip to checkout directly

4.9(Reviews)

Floating add to cart button to reduce cart abandonment, lightweight and mobile responsive design What are the features? Floating cart to reduce cart abandonment, lightweight and mobile responsive design, improve user experience and increase conversion by showing always visible Sticky Add to Cart to your customers on the Product page!How does it work? Install the app with one click, the app works with every theme and requires no coding or changes. You can choose the style of a sticky bar and floating cart to start with. You can also modify colors, styles, and texts according to you What are the features? Floating cart to reduce cart abandonment, lightweight and mobile responsive design, improve user experience and increase conversion by showing always visible Sticky Add to Cart to your customers on the Product page!How does it work? Install the app with one click, the app works with every theme and requires no coding or changes. You can choose the style of a sticky bar and floating cart to start with. You can also modify colors, styles, and texts according to you more The app will improve your sales. You will get more sales with sticky cart Customize colors, backgrounds, text, position & more to match your site Easy to install, just one click to make it works

0.0(Reviews)

Customize product with product personalizer & variants options to boost unique shopping experiences. EZ Product Options helps merchants customize product and create unlimited product options, variants with ease. From text boxes, image dropdowns, and swatches to file uploads and conditional logic, you can build a smooth customization experience for your customers. The app is mobile-friendly, integrates easily with your store design, and saves time by reducing the need for duplicate variants. Merchants can offer personalized products, improve customer experience, and boost sales effortlessly. EZ Product Options helps merchants customize product and create unlimited product options, variants with ease. From text boxes, image dropdowns, and swatches to file uploads and conditional logic, you can build a smooth customization experience for your customers. The app is mobile-friendly, integrates easily with your store design, and saves time by reducing the need for duplicate variants. Merchants can offer personalized products, improve customer experience, and boost sales effortlessly. more Add text fields, dropdowns, checkboxes, color swatches, file uploads, and more. AI suggests optimal product options automatically based on product details No coding needed, works instantly on any theme, desktop & mobile ready.

4.8(Reviews)

Maximize Your Store Sales & ROI with AI Assistant, Search, Merchandising, and Personalization. We're passionate about delivering a cutting-edge eCommerce experience for our clients. That's why we've developed a revolutionary platform that integrates shopper behavior, store signals, and agentic AI to help you optimize your merchandising, navigation, search filters & AI shopping assistants. Fast Simon powers shopping optimization through NO-CODE front end, API, JS SDK, REACT Components and Hydrogen. Let us help you take your eCommerce business to the next level. We're passionate about delivering a cutting-edge eCommerce experience for our clients. That's why we've developed a revolutionary platform that integrates shopper behavior, store signals, and agentic AI to help you optimize your merchandising, navigation, search filters & AI shopping assistants. Fast Simon powers shopping optimization through NO-CODE front end, API, JS SDK, REACT Components and Hydrogen. Let us help you take your eCommerce business to the next level. more Search & Discovery directs shoppers with peak speed and accuracy based on intent Merchandising engages and inspires shoppers while optimizing inventory & sales Personalized Search & Filters that boost customers' conversions Interact with shoppers using AI shopping assistants on your store's own data. Search Audiences lets you target and personalize the entire customer journey

4.7(Reviews)

Seamlessly create all bundle types like mix and match, BOGO, addons, etc, to effortlessly boost AOV! FBP | Fast Bundles provides seamless tools for creating flexible and effective bundle products. Use bundle as product upsell to create offers like mix & match, volume discount, quantity breaks, buy x get y, BOGO, cross-sell, add-ons and fixed bundles strategies to increase AOV. Let customers build their own bundle or use our bundle builder; free gifts, and AI-powered Frequently Bought Together. We empower you to create all types of bundles, maximizing revenue and delighting your customers. FBP | Fast Bundles provides seamless tools for creating flexible and effective bundle products. Use bundle as product upsell to create offers like mix & match, volume discount, quantity breaks, buy x get y, BOGO, cross-sell, add-ons and fixed bundles strategies to increase AOV. Let customers build their own bundle or use our bundle builder; free gifts, and AI-powered Frequently Bought Together. We empower you to create all types of bundles, maximizing revenue and delighting your customers. more Create bundles like Volume Discounts, Mix and Match, Upsell, and Cross-sell Increase revenue at your Point of Sale (POS) with bundles and discounts. Showcase bundled products as kits or sets, simplifying the shopping experience. Let customers customize bundles with an easy-to-use Bundle Builder. Increase customer retention by integrating subscriptions with bundles.

5.0(Reviews)

Group products (colors, styles, upsells, etc...) and show more options on the product page. Make it easier for your customers to discover all your products by grouping them based on shared attributes such as style, color, design, etc..., and display them on the product page with ease. If you sell items with similar features, this app makes it super simple to group them. The app also comes with many automations to make the process quicker and automatic. Make it easier for your customers to discover all your products by grouping them based on shared attributes such as style, color, design, etc..., and display them on the product page with ease. If you sell items with similar features, this app makes it super simple to group them. The app also comes with many automations to make the process quicker and automatic. more Create product groups that tie products together based on shared attributes Display grouped products on each product page Many display options (1 or 2 color swatches, custom images, text, etc...) Eliminate manual work with built-in automations Autohide/disable out of stock & unpublished products

5.0(Reviews)

App provides Upsell based Cart Drawer | Popup | Progress Shipping bar | Discount | Agree Terms "Flying Cart Slide Drawer" Replaces traditional cart pages with a side-sliding drawer or popup with your cart items  and keeping shoppers on the same page. The app also includes the functionalities of Progress Shipping Bar, Discounts, Agree Terms, Upsell.  You can rely on the app for hassle free experience for your users to see there products in cart anytime on your site and checkout at the same time. It also includes animated checkout button in cart drawer which will attract users attention. "Flying Cart Slide Drawer" Replaces traditional cart pages with a side-sliding drawer or popup with your cart items  and keeping shoppers on the same page. The app also includes the functionalities of Progress Shipping Bar, Discounts, Agree Terms, Upsell.  You can rely on the app for hassle free experience for your users to see there products in cart anytime on your site and checkout at the same time. It also includes animated checkout button in cart drawer which will attract users attention. more Creates a customizable Slide Cart designed to increase average order value (AOV) Update cart through Cart Drawer and easy checkout option | Fully Customization Free Shipping Progress Bar with indicating amount left for free shipping Promo Code for adding discount coupon on slide cart only Announcement bar | I Agree To Cart Terms | Upsell | Cart Notes

4.9(Reviews)

Increase your store's conversion rate by 20% and increase 27% in sales with visual recommendations AI-powered visual-based product recommendation engine that shows highly relevant result across large amount of SKUs. Increase clickthrough from your marketing emails with showing highly personalized product emails through Klaviyo integrations. Increase sales, conversion rate, clickthrough rate, and ROI. AI-powered visual-based product recommendation engine that shows highly relevant result across large amount of SKUs. Increase clickthrough from your marketing emails with showing highly personalized product emails through Klaviyo integrations. Increase sales, conversion rate, clickthrough rate, and ROI. more AI-powered product recommendations that show highly visually relevant products Style the recommendation module to your liking. Integrate with Klaviyo and send personalized recommendations in emails.

5.0(Reviews)

AI-powered Page Builder built for Conversion. Create Sales Funnels with Post-Purchase Upsell Offers Conversion-Focused Page Builder for Shopify. Build all page types faster with with AI-powered tools and a flexible drag-and-drop editor - no code. Choose from 400+ CRO templates optimized for speed and performance across all industries and niches. Build complete sales funnels featuring post-purchase upsells and A/B testing. Each page is SEO-optimized, mobile-responsive, and fast-loading for better conversions. Seamlessly integrate with 160+ Shopify apps to enhance your store’s capability. Conversion-Focused Page Builder for Shopify. Build all page types faster with with AI-powered tools and a flexible drag-and-drop editor - no code. Choose from 400+ CRO templates optimized for speed and performance across all industries and niches. Build complete sales funnels featuring post-purchase upsells and A/B testing. Each page is SEO-optimized, mobile-responsive, and fast-loading for better conversions. Seamlessly integrate with 160+ Shopify apps to enhance your store’s capability. more Build all page types: Home, Product, Landing, Advertorial, Collection, and more SEO-friendly pages: Mobile-ready designs that work with latest Shopify theme Built-in CRO & sales boosters: Countdown, Stock Counter, Bundles, Before & After AI-driven Page Builder: Turn images & URLs into ready-to-edit layouts in seconds Customizable Funnels: Add post-purchase upsells & downsells offer to boost AOV

4.9(Reviews)

Add gift wrapping, message cards, noshi, and more to your product, cart, or checkout pagee Customers want to send gifts — but without wrapping or message options, they may leave your store. Gift Options Plus lets you offer gift wrapping, noshi, message cards, and more on product pages, cart, or checkout. Each widget is customizable to match your store's design and supports multiple languages. Setup takes just 3 steps, and our team provides hands-on support. Turn every order into a gift-ready experience and increase your average order value. Customers want to send gifts — but without wrapping or message options, they may leave your store. Gift Options Plus lets you offer gift wrapping, noshi, message cards, and more on product pages, cart, or checkout. Each widget is customizable to match your store's design and supports multiple languages. Setup takes just 3 steps, and our team provides hands-on support. Turn every order into a gift-ready experience and increase your average order value. more Add gift options to product, cart, or checkout pages — manage from one dashboard Offer gift wrapping, message cards, noshi, and more to boost order value Multilingual support — customize widget text for each language your store serves Set up in 3 steps with instant activation and free hands-on engineer support

3.7(Reviews)

Unlimited product options for any store. Enable product personalization with live preview Shopify limit 2048 variants per product. This app helps you to create infinite product options. It also encourages buyers to personalize their products, which increases sales. Allow shoppers to design their own custom products based on flexible option choices. Apply particular option set to appropriate products. Your customer will be happy to pay a small extra amount for a custom option to have the most satisfied product. Shopify limit 2048 variants per product. This app helps you to create infinite product options. It also encourages buyers to personalize their products, which increases sales. Allow shoppers to design their own custom products based on flexible option choices. Apply particular option set to appropriate products. Your customer will be happy to pay a small extra amount for a custom option to have the most satisfied product. more Text input field, file upload, color swatch, variant image, dropdown, checkbox Add-on price - Additional cost when you customer choose a product variants Conditional logic: Show/hide relevant options depending on the previously select Import & Export product variants by CSV file. Complete product custom tool. Powerful product personalization w/ text, images, custom fields & live preview.

4.9(Reviews)

Incentivise customers to buy more with ⎯ free gift with purchase, free shipping, BOGO & Buy X get Y! Boost AOV with free gift with purchase, order discount or free shipping which are stackable and easily communicated to your customers with our beautiful template. You can set conditions based on cart criteria such as 'Cart value, Cart has products, Cart has X quantity'. You can reward your customers with: 'Free shipping, Order discount, Free gift'. All of the goals are configurable and localised - design, translations, currency, countdown timer. You can even hide goals from specific countries. Boost AOV with free gift with purchase, order discount or free shipping which are stackable and easily communicated to your customers with our beautiful template. You can set conditions based on cart criteria such as 'Cart value, Cart has products, Cart has X quantity'. You can reward your customers with: 'Free shipping, Order discount, Free gift'. All of the goals are configurable and localised - design, translations, currency, countdown timer. You can even hide goals from specific countries. more Configure rules such as ⇝ cart value, cart quantity, cart has XYZ products. Configure stackable rewards such as ⇝ free gift, free shipping, order discount. Set as much as rules and rewards you want, you can stack both rules and rewards. Multi design templates fully localized ⇝ translations & currency conversion. Use it both as a top bar on your shop + a widget which you can place anywhere.

4.8(Reviews)

Boost your conversions with slide cart upsells, free gifts & custom brand design support! Increase your store’s average order value with progress bars, cart upsells, free gifts, BOGO (Buy X Get Y) offers, frequently bought together bundles, discounts, and promotions. The sticky cart drawer looks great on any theme and helps reduce cart abandonment by keeping the cart accessible anywhere on your site. Unlock 10+ powerful features and transform your cart into a revenue-driving machine — fully designed for your brand. Increase your store’s average order value with progress bars, cart upsells, free gifts, BOGO (Buy X Get Y) offers, frequently bought together bundles, discounts, and promotions. The sticky cart drawer looks great on any theme and helps reduce cart abandonment by keeping the cart accessible anywhere on your site. Unlock 10+ powerful features and transform your cart into a revenue-driving machine — fully designed for your brand. more Cart Upsell & Cross-Sell: Suggest complementary products right in the cart Rewards Progress Bar: Motivate customers to spend more with reward goals Free Gifts: Automatically offer gifts based on products, MOQ, or cart value Discount Bar: Let shoppers apply and stack discount codes in the cart drawer Sticky Cart Drawer: A floating cart that stays visible and accessible storewide

4.7(Reviews)

Add a customizable side cart drawer & boost AOV with cart discount, AI cart upsells & progress bar iCart Cart Drawer Cart Upsell is a full-featured upselling and cross-selling app to boost sales before checkout. Create a stunning sticky cart, cart popup or cart page with an easy-to-use no-code cart editor. Boost AOV with AI-powered product upsells, cross-sells, product bundles, progress bar/shipping bar, order delivery date & time picker & more. Recover lost sales by giving your customers special discounts & free gifts. So why wait? Create irresistible deals & reduce cart abandonment now! iCart Cart Drawer Cart Upsell is a full-featured upselling and cross-selling app to boost sales before checkout. Create a stunning sticky cart, cart popup or cart page with an easy-to-use no-code cart editor. Boost AOV with AI-powered product upsells, cross-sells, product bundles, progress bar/shipping bar, order delivery date & time picker & more. Recover lost sales by giving your customers special discounts & free gifts. So why wait? Create irresistible deals & reduce cart abandonment now! more Increase your AOV by giving cart upsell & cross sell offers in side cart drawer Motivate customers to buy more save more with free shipping bar/progress bar Fully customizable cart drawer, popup & full cart compatible with all themes Show urgency in product upsell offers by showing a cart timer/countdown timer Make more revenue by giving cart discounts like volume discounts, BOGO & more

4.8(Reviews)

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About Custom HTML Apps for Shopify

Custom HTML 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 html 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 html solutions available in the Shopify App Store. Each has been selected based on its functionality, user ratings, and overall value for Shopify merchants.