Take unlimited appointments and bookings on your calendar. Booking app for any event or service. Create appointment bookings on Shopify in a few clicks. Booking for events, experiences, tastings, tours and group sessions. In person or online. An integrated Calendly or Acuity for Shopify. Appointment booking app that syncs to orders, customers, and POS. Multi-location scheduling, staff portal, deposits, waitlists, intake questions, QR tickets, email and SMS reminders, and rescheduling. Sync to Google Calendar, Outlook, Zoom, Flow, Klaviyo. Built for showrooms, wineries, jewelry, and more. Create appointment bookings on Shopify in a few clicks. Booking for events, experiences, tastings, tours and group sessions. In person or online. An integrated Calendly or Acuity for Shopify. Appointment booking app that syncs to orders, customers, and POS. Multi-location scheduling, staff portal, deposits, waitlists, intake questions, QR tickets, email and SMS reminders, and rescheduling. Sync to Google Calendar, Outlook, Zoom, Flow, Klaviyo. Built for showrooms, wineries, jewelry, and more. more Take free or paid bookings on any page. Every booking lands in Shopify. Send reminders and follow ups by Email, SMS, Google Calendar and Klaviyo Multi-location: staff, availability, POS, and appointment analytics per location Easy to update schedules, add and check-in bookings. Customers can reschedule. Customizable appointment booking widgets; no code. Helpful chat / email support!
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.
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
Create unlimited product options! Create unlimited product options. Easily add text and numeric fields, dropdowns, swatches, date selectors, file uploaders and more! Match products using simple or complex criteria. Set any number of conditions to decide whether the options should show on each product. Select between a handful of choices to make your products options show exactly like your business need! Create unlimited product options. Easily add text and numeric fields, dropdowns, swatches, date selectors, file uploaders and more! Match products using simple or complex criteria. Set any number of conditions to decide whether the options should show on each product. Select between a handful of choices to make your products options show exactly like your business need! more Create unlimited product options. Easily add more product options. Match products using simple or complex criteria. Set any number of conditions. Select between a handful of choices to make your products options show as needed
Make your videos and maps responsive so they look good across all devices. Make embedded YouTube, Vimeo videos, and Google Maps fully responsive on any page. The app helps you display videos and maps correctly on Pages, Articles, Products, and more. By default, the app uses a 16:9 aspect ratio for both videos and maps while making them responsive, but if you prefer a different aspect ratio (for example, if you'd like to have square maps), you may adjust dimensions in the app settings easily. Make embedded YouTube, Vimeo videos, and Google Maps fully responsive on any page. The app helps you display videos and maps correctly on Pages, Articles, Products, and more. By default, the app uses a 16:9 aspect ratio for both videos and maps while making them responsive, but if you prefer a different aspect ratio (for example, if you'd like to have square maps), you may adjust dimensions in the app settings easily. more Make your YouTube and Vimeo videos, and Google Maps responsive. Flexible video aspect ratio. Configure embedded videos dimensions. Improved store usability: no more cut off videos or maps on mobile devices
Create dynamic spec tables from fields, variants & metafields. Easy to build, no code. Add professional product specification tables to your store in minutes. No code required. Easy Specs pulls your product fields, variant fields, and metafields into clean, organized tables customers actually read. Specs update instantly as shoppers switch variants, and metafields render correctly by type. Show the right table automatically by collection, tag, type, or vendor, and match your theme with templates, tooltips, and CSS. Give buyers the details they need to add to cart. Add professional product specification tables to your store in minutes. No code required. Easy Specs pulls your product fields, variant fields, and metafields into clean, organized tables customers actually read. Specs update instantly as shoppers switch variants, and metafields render correctly by type. Show the right table automatically by collection, tag, type, or vendor, and match your theme with templates, tooltips, and CSS. Give buyers the details they need to add to cart. more Dynamic data sources: Combine product fields, variants & metafields in one table Smart metafield display: Render every metafield correctly based on its type Real-time variant updates: Values change instantly as shoppers switch variants Smart targeting: Auto-show tables by collection, tag, product type or vendor Match your theme: Style with templates, settings, tooltips & custom CSS
Upsell, cross sell, and use product recommendations to increase your sales. Increase your sales by displaying offers and product recommendations tailored to each customer. Use the power of artificial intelligence exclusively created for Shopify without configuration or technical knowledge. Convert, grow, and retain more customers through automatic product recommendations and upsells. Increase your sales by displaying offers and product recommendations tailored to each customer. Use the power of artificial intelligence exclusively created for Shopify without configuration or technical knowledge. Convert, grow, and retain more customers through automatic product recommendations and upsells. more Increase average order value and make more sales with easy to setup upsells. Convert and retain more customers through automatic product recommendations. Upsell additional products based on your customer's purchase and behavior. Use the power of artificial intelligence exclusively created for Shopify. Showcase additional products and make more sales during Shopify POS sales.
Wholesale order form and page: Bulk order form for the product and standalone wholesale pages. EasyWholesale is a great solution for simplifying bulk orders and speeding up the checkout process for your wholesalers. Add a bulk order form to the Product pages for selected products or standalone wholesale catalog pages with fast order forms for a set of products. Adjust the wholesale page look and feel to make it fit your store theme perfectly and help wholesalers place b2b batch orders quickly and easily. EasyWholesale is a great solution for simplifying bulk orders and speeding up the checkout process for your wholesalers. Add a bulk order form to the Product pages for selected products or standalone wholesale catalog pages with fast order forms for a set of products. Adjust the wholesale page look and feel to make it fit your store theme perfectly and help wholesalers place b2b batch orders quickly and easily. more Create wholesale offer pages for your wholesalers to complete bulk order fast. Add bulk order form to specified products for swift purchasing. Change colors, texts, and quick order form layouts to fit your business needs. Floating bar with order summary for long wholesale catalogs to improve usability Fast checkout for bulk and wholesale orders
Let shoppers personalize products with text, swatches and file uploads. Paid add-ons can lift AOV Shopify limits each product to three options. EasyFlow adds as many choices as you need without creating new variants. Offer text boxes, dropdowns, checkboxes, radio buttons, color and image swatches, date pickers and file uploads. Set custom pricing for extras like engraving or gift wrap, shown in each shopper's currency. Conditional logic shows only relevant choices, including by variant. Apply one option set to many products, or build options by chatting with Sidekick, ChatGPT or Claude. Shopify limits each product to three options. EasyFlow adds as many choices as you need without creating new variants. Offer text boxes, dropdowns, checkboxes, radio buttons, color and image swatches, date pickers and file uploads. Set custom pricing for extras like engraving or gift wrap, shown in each shopper's currency. Conditional logic shows only relevant choices, including by variant. Apply one option set to many products, or build options by chatting with Sidekick, ChatGPT or Claude. more Add more product options than Shopify's three-option variant limit allows Collect personalization with text boxes, file uploads and date pickers Charge for extras with price add-ons shown in each shopper's currency Show only relevant choices with conditional logic based on variants Build an option set once and apply it to many products in bulk
YMM search and vehicle fitment for auto parts, tires, phone accessories or any parts fitment niche. Year Make Model filter and car make filter for auto parts, used auto parts, car and motorbike parts, phone accessories or any niche where a product must fit. The shopper picks the year, make and model in the YMM search form, and the store shows the parts that fit. Fields can be in any order, such as Make Model Year. Fitment data: import from CSV, sync from Turn 14 Distribution or Slingshot Automotive, or build it in the app. Our support team helps with the initial setup and import. Year Make Model filter and car make filter for auto parts, used auto parts, car and motorbike parts, phone accessories or any niche where a product must fit. The shopper picks the year, make and model in the YMM search form, and the store shows the parts that fit. Fields can be in any order, such as Make Model Year. Fitment data: import from CSV, sync from Turn 14 Distribution or Slingshot Automotive, or build it in the app. Our support team helps with the initial setup and import. more Year Make Model search form and automotive parts finder with custom fields Fitment widget on the product page shows if the part fits the chosen vehicle Fitment table lists every year, make and model a product fits My Garage keeps the shopper's vehicle between visits and across collections Universal products link one product to many vehicle combinations
Create 1-Click COD order form with upsells, product bundles, OTP verification, and fraud prevention. EasySell adds a fast, mobile-first order form to your store, built specifically for cash-on-delivery. Your customers complete their order in seconds. Boost cart value with quantity offers, bonus gifts, product bundles, and sequential upsell/downsell flows. Cut fake orders with OTP verification via SMS/WhatsApp and smart blocking rules. Multi-currency by default: build your form with drag and drop, translate it into any language, and connect Google Sheets and your tracking pixels. EasySell adds a fast, mobile-first order form to your store, built specifically for cash-on-delivery. Your customers complete their order in seconds. Boost cart value with quantity offers, bonus gifts, product bundles, and sequential upsell/downsell flows. Cut fake orders with OTP verification via SMS/WhatsApp and smart blocking rules. Multi-currency by default: build your form with drag and drop, translate it into any language, and connect Google Sheets and your tracking pixels. more Fast COD order form that boosts conversions on mobile and desktop Higher order value: upsells, downsells, bundles, and quantity offers Fewer fake orders: OTP via SMS/WhatsApp and smart blocking rules Partial COD deposits to reduce non-delivery risk Translatable into any language, multi-currency, and address autocomplete
Accordion tabs for your Product Description - Product tabs. FAQ pages. Add a FAQ page to your Store easily. Add questions and answers directly to your Page content and app will transform page to Accordion tabs automatically. Replace your long product description text with accordion widget. Add description based tabs, or create Static panels and assign them to all products, certain collection(s) or individual products to save your time. Add functional panels for Reviews, Size guides and other 3rd party apps integrations. Add a FAQ page to your Store easily. Add questions and answers directly to your Page content and app will transform page to Accordion tabs automatically. Replace your long product description text with accordion widget. Add description based tabs, or create Static panels and assign them to all products, certain collection(s) or individual products to save your time. Add functional panels for Reviews, Size guides and other 3rd party apps integrations. more Easily organize your long description text or page content with accordions. Add accordions to all your products at once or selected collections only. Add accordion tabs to your product description or create fancy FAQ pages. Fully WCAG 2.0 / Section 508 compliant accordion widgets.
Accessibility Widget, Audits & Fixes — Everything You Need for ADA, WCAG, AODA & EAA Compliance. Accessibility WCAG Compliance Remediation — trusted by thousands of Shopify stores across the US, EU, Canada & beyond. Get AI-powered alt text generation, automated full-site audits, real-time accessibility adjustments, accessibility score improvement & scheduled compliance reports in one click. Support for ADA, WCAG 2.2 AA, AODA, EAA & BFSG standards. No coding needed, fully brandable & live in minutes. Join thousands of merchants making stores smarter, more inclusive & litigation-proof. Accessibility WCAG Compliance Remediation — trusted by thousands of Shopify stores across the US, EU, Canada & beyond. Get AI-powered alt text generation, automated full-site audits, real-time accessibility adjustments, accessibility score improvement & scheduled compliance reports in one click. Support for ADA, WCAG 2.2 AA, AODA, EAA & BFSG standards. No coding needed, fully brandable & live in minutes. Join thousands of merchants making stores smarter, more inclusive & litigation-proof. more Fast, easy install for WCAG, ADA, AODA, EAA, & BFSG accessibility compliance. Fully customizable widget to match your brand colors, position, and style. AI-powered alt text generation & accessibility statement template included [New] Automated accessibility audit monitoring with real-time alerts & reports. [New]Accessibility Issues fixes and audit score improvement assistance.
Create attractive form using form builder with conditional based form, Customer based form, etc... This app help you to create your own custom form with drag & drop fields. You can easily add the fields, change their position on the form and mark it required if needed. Form settings are easy to use and you can setup email specific auto responder emails. You can send the form data to the multiple users as well as set BCC according to your requirements. We provide the facility to set the sender email address as well as a subject. This app help you to create your own custom form with drag & drop fields. You can easily add the fields, change their position on the form and mark it required if needed. Form settings are easy to use and you can setup email specific auto responder emails. You can send the form data to the multiple users as well as set BCC according to your requirements. We provide the facility to set the sender email address as well as a subject. more Short Code/Plain HTML based custom forms like Contact, Testimonial, Conditional. Drag & Drop Fields, File Upload, Conditional Fields & Emails. Auto Response Google reCAPTCHA Mailchimp, Klaviyo form integration with form. Google Sheets integration to store data in google sheet.
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
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. AI Page Builder: layout builder, AI search optimize, image & content generator 400+ high-converting templates & countless sections for any niche 30+ CRO add-ons: Cross-sell, upsell, popup, back in stock, compare, wishlist etc Advanced: A/B Test, Page Analytics, Global Blocks, Multi-market, Lazy load, etc.
Countdown timer designs for sale and other promotional purposes. ECOMTREND Countdown Timer app can enhance sales conversion effectively by emphasizing the limited time that the shoppers get to grab the deal. The beautiful and customizable designs allow you to have the exact timer design that matches your theme. This is an essential component for your store if you are planning to run Flash Sales, Seasonal Sales, Daily Deals, or Special Day Sales like Black Friday. ECOMTREND Countdown Timer app can enhance sales conversion effectively by emphasizing the limited time that the shoppers get to grab the deal. The beautiful and customizable designs allow you to have the exact timer design that matches your theme. This is an essential component for your store if you are planning to run Flash Sales, Seasonal Sales, Daily Deals, or Special Day Sales like Black Friday. more Banner type timers and product timers are available Up to 10 different timers on the same page Multi-language support with translations Flexible time scheduling with advanced visibility control Multiple design styles with custom background support
EasyGift: free gift with purchase app. Automatic gift, BOGO, buy 1 get 1 & buy X get Y offers EasyGift is a free gift with purchase app that adds a gift or add-on to the cart when rules are met. Run GWP, BOGO, buy one get one (buy 1 get 1) and buy X get Y offers, or tiered gifts by cart value. Trigger on cart subtotal, quantity, products, collections or tags. Add the automatic gift silently or let shoppers pick it in a popup. Target by customer tag, spend, order history, B2B or country. Schedule Black Friday offers, discount the gift with a Shopify Function and track each rule's orders. EasyGift is a free gift with purchase app that adds a gift or add-on to the cart when rules are met. Run GWP, BOGO, buy one get one (buy 1 get 1) and buy X get Y offers, or tiered gifts by cart value. Trigger on cart subtotal, quantity, products, collections or tags. Add the automatic gift silently or let shoppers pick it in a popup. Target by customer tag, spend, order history, B2B or country. Schedule Black Friday offers, discount the gift with a Shopify Function and track each rule's orders. more Free gift with purchase (GWP), BOGO & buy X get Y, auto added to cart Trigger on cart subtotal, quantity, products, collections or product tags Automatic gift added to cart, or open a popup so shoppers choose their free gift Target by customer tag, total spend, order history, B2B or country Schedule offers, get out-of-stock alerts and see orders for each rule
Promote discount offers and keep buying easy with Sticky Add to Cart. Instant Upsell allows you to create discounted upsells automatically in one click. The offers appear as banners that customers can click to apply coupons right away. Encourage your customers to buy more with targeted incentives. When a customer browses a product, the related coupon will pop up. Display your discount offers nicely on all types of screens and devices. Keep the purchase button visible with Sticky Add to Cart. Desktop is included on Free; mobile is available on paid plans. Instant Upsell allows you to create discounted upsells automatically in one click. The offers appear as banners that customers can click to apply coupons right away. Encourage your customers to buy more with targeted incentives. When a customer browses a product, the related coupon will pop up. Display your discount offers nicely on all types of screens and devices. Keep the purchase button visible with Sticky Add to Cart. Desktop is included on Free; mobile is available on paid plans. more Easy in-store coupon promotion - easy upsell Total control over discounts appearance One-click creation and bulk synchronized Statistic and report impressions and redeem coupons Sticky Add to Cart with variant selection and customizable button styling
Boost AOV with Cart Upsells, Free Gifts, Rewards & A/B Testing Optimize your cart your way with Ego. Build a customizable Ego Cart Drawer or enhance your existing Shopify theme cart and cart page with upsells, rewards bars and free gifts. Run A/B tests to compare cart experiences, preview changes safely with Test Mode, and auto-add eligible gifts or let shoppers choose. AI auto-translate cart for different markets. Add product recommendations, frequently bought together offers and other conversion tools without code to grow AOV across every cart experience. Optimize your cart your way with Ego. Build a customizable Ego Cart Drawer or enhance your existing Shopify theme cart and cart page with upsells, rewards bars and free gifts. Run A/B tests to compare cart experiences, preview changes safely with Test Mode, and auto-add eligible gifts or let shoppers choose. AI auto-translate cart for different markets. Add product recommendations, frequently bought together offers and other conversion tools without code to grow AOV across every cart experience. more Ego Cart Drawer & Theme Cart: Build with Ego or enhance the cart you already use A/B Testing: Compare cart variants, layouts and offers to find what convert best Test Mode: Preview changes safely before showing them to shoppers Free Gifts: Auto-add eligible gifts or let shoppers choose their preferred gift Upsells & Rewards: Grow AOV with FBT offers, recommendations and reward bars
Add posts from your Instagram account or by hashtag to your website Installing Instagram Feed app you can choose the best photos from Instagram to fill your site with enticing content, involving more viewers on the website. Accompany photos with call-to-action buttons and turn website visitors into your Instagram followers. Installing Instagram Feed app you can choose the best photos from Instagram to fill your site with enticing content, involving more viewers on the website. Accompany photos with call-to-action buttons and turn website visitors into your Instagram followers. more Various sources to get more exciting content Filters to get full control over the content Full control of sizes and proportions
Slide Cart Drawer: Boost AOV with cart upsells, cross-sells, free shipping bar, rewards & free gifts EliteCart turns your slide cart drawer into a revenue engine. Run cart upsells, cross-sells & frequently bought together offers with AI recommendations. Boost AOV further with a free shipping bar, progress bar, free gifts, one-click addons & countdown timers. Build trust with announcement bars, badges & payment icons. Create custom AI sections, schedule banners, conditionally show rewards for customer groups. Use our no-code designer with multi-currency, multi-language & Shopify markets support. EliteCart turns your slide cart drawer into a revenue engine. Run cart upsells, cross-sells & frequently bought together offers with AI recommendations. Boost AOV further with a free shipping bar, progress bar, free gifts, one-click addons & countdown timers. Build trust with announcement bars, badges & payment icons. Create custom AI sections, schedule banners, conditionally show rewards for customer groups. Use our no-code designer with multi-currency, multi-language & Shopify markets support. more Slide cart drawer with cart upsells, cross-sells & frequently bought together. Progress bar with rewards like free shipping, free gifts, and discounts. AI-powered upsell engine with product recommendations trained on your store. Countdown timers, announcement bars, payment icons, low inventory display. No-code builder, custom CSS, custom HTML, multi-language, multi-market.
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.