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Custom CSS Shopify Apps

Discover the best Custom CSS apps for your Shopify store in 2025. Compare features, pricing, and reviews to find the perfect solution.

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Display your Instagram Feed Gallery with Instagram Stories & Highlights with our Insta feed app Instafeed app helps display your Instagram feed elegantly on your website. You can turn your store visitors into customers with Insta feed. Showcasing your Instagram gallery can give Ultimate Social Proof on your website to your visitors Set it up in less than 60 seconds in two clicks. You can hide posts, rearrange according to popularity and use our custom prompts to design the feed as you'd want with AI. It works like magic 🦄 Instagram lookbooks are the way to go to earn trust for sales. Instafeed app helps display your Instagram feed elegantly on your website. You can turn your store visitors into customers with Insta feed. Showcasing your Instagram gallery can give Ultimate Social Proof on your website to your visitors Set it up in less than 60 seconds in two clicks. You can hide posts, rearrange according to popularity and use our custom prompts to design the feed as you'd want with AI. It works like magic 🦄 Instagram lookbooks are the way to go to earn trust for sales. more Show Instagram posts (photos & Reels) in a gallery grid or slider layout Create shoppable Instagram feeds - Tag multiple products on posts Customise layout for Desktop and Mobile seperately adding rows & cols to each. Show only specific posts from your entire Instagram Feed & Hide others 24/7 Live Chat support to solve all your queries for the photo gallery design

4.2(Reviews)

Create a Sticky Add To Cart button to make it easier to buy in your store, and support mobile. Instant Buy allows you to create a button to redirect store visitors to relevant pages like product pages, discount events, and back-in-stock announcements. Shoppers can easily and quickly add products to their cart instantly and be directed to the checkout page with one click checkout. Instant Buy allows you to add your Facebook Pixel ID and Pinterest Tag ID to the Add To Cart button. Statistics and counting the number of impressions and clicks on the Sticky Add To Cart button Instant Buy allows you to create a button to redirect store visitors to relevant pages like product pages, discount events, and back-in-stock announcements. Shoppers can easily and quickly add products to their cart instantly and be directed to the checkout page with one click checkout. Instant Buy allows you to add your Facebook Pixel ID and Pinterest Tag ID to the Add To Cart button. Statistics and counting the number of impressions and clicks on the Sticky Add To Cart button more Create a Sticky Add To Cart button to make it easier to buy in your store Recover abandoned carts with Facebook and Pinterest Remarketing Statistics and counting the number of impressions and clicks on the Ajax Button Customize the button's text, font size, and color to match with the main theme. Optimize execution speed and do not affect website speed

4.5(Reviews)

The Quick View feature on the collection page that displays the details of the product in a popup Instant View app allows you to enable a feature on the collection page that helps your customers to see the product information in an intuitive way. The Quick View feature plays an important role in creating more conversions from online stores. This saves your customers time and provides a faster browsing experience. Instant View app allows buyers to view product details quickly without navigating to the product page. Instant View app allows you to enable a feature on the collection page that helps your customers to see the product information in an intuitive way. The Quick View feature plays an important role in creating more conversions from online stores. This saves your customers time and provides a faster browsing experience. Instant View app allows buyers to view product details quickly without navigating to the product page. more Highly adaptable view for all desktop screen resolutions and iPad Truly compatible with most of Shopify themes Social Media share One-click Checkout Color Swatch Option

5.0(Reviews)

Dynamic Store Enhancement: Embed Real-Time Instagram Feeds with Instasync With Instasync, effortlessly integrate elegant Instagram feeds into your Shopify store in under a minute. Showcasing Instagram content, such as photos and Reels, on your store enhances social proof, transforming visitors into loyal customers and attracting new Instagram followers. Enjoy a one-click setup that’s compatible with all themes, and customize your feed design to perfectly match your brand. Experience the seamless integration and customization of Instasync—it's like magic! With Instasync, effortlessly integrate elegant Instagram feeds into your Shopify store in under a minute. Showcasing Instagram content, such as photos and Reels, on your store enhances social proof, transforming visitors into loyal customers and attracting new Instagram followers. Enjoy a one-click setup that’s compatible with all themes, and customize your feed design to perfectly match your brand. Experience the seamless integration and customization of Instasync—it's like magic! more Easy Integration: Sync your Instagram feed effortlessly with just a few clicks Product Driven Posts: Tag products in posts to display on related product pages Content Moderation: Hide posts and customize layouts with custom CSS Customizable Layouts: Use grid/slider, adjust rows, columns, posts in all themes Responsive Design: Optimized for both desktop and mobile users

5.0(Reviews)

Improve "Add to Cart" numbers by using personalization for visitors coming from Meta & Google Ads IntelliAssist improves sales by enhancing customer engagement and personalization for visitors coming from Meta & Google Ads. It provides AI recommendation for ad optimization and improve CTR on ads. Intelliassist provides smart dynamic plugins like - popup, chatbot, CDP and announcement bar which are controlled by AI to personalize product pages for the brands. These plugins are loaded as required which improves the page loading speed. IntelliAssist improves sales by enhancing customer engagement and personalization for visitors coming from Meta & Google Ads. It provides AI recommendation for ad optimization and improve CTR on ads. Intelliassist provides smart dynamic plugins like - popup, chatbot, CDP and announcement bar which are controlled by AI to personalize product pages for the brands. These plugins are loaded as required which improves the page loading speed. more Actionable AI recommendations for ad optimization on Meta Ads Visually compare different ad metrics Use dynamic plugins to improve your page speed

0.0(Reviews)

High-converting announcement bar, shipping bar, countdown timer to engage customers & grow upsell Boost your sales and customer engagement with Invints Shipping, Bars, Upsel! Featuring a high-converting announcement bar, shipping bar, and countdown timer, our app is designed to capture attention and drive conversions. Easily create urgency and promote offers with customizable countdown timers, highlight shipping deals, and announce bar updates seamlessly. Perfect for upselling and enhancing the shopping experience, our app helps you grow your business effortlessly. Boost your sales and customer engagement with Invints Shipping, Bars, Upsel! Featuring a high-converting announcement bar, shipping bar, and countdown timer, our app is designed to capture attention and drive conversions. Easily create urgency and promote offers with customizable countdown timers, highlight shipping deals, and announce bar updates seamlessly. Perfect for upselling and enhancing the shopping experience, our app helps you grow your business effortlessly. more Multiple types - multi-announcement bar, countdown timer bar & free shipping bar Fully customizable with various options, animation, background images & styles Increase Average Order Value by incorporating product upsells and cross-sells Increase Conversions: add a product timer, countdown banner or cart countdown. Highly Customizable: customize cart goal progress bar or use pre-made styles.

0.0(Reviews)

Build powerful custom forms like contact us, connect with any third party APIs. No coding required. This all-in-one contact form builder can help you capture more leads & boost sales. You can connect these forms with any 3rd party apps like Mailchimp, Mailbuster, Hubspot, Klavio or your custom CRM. You can create any type of professional looking form like Contact us, Survey form, Registration form, Application form, Inquiry form, Quote request form, Booking form, Order form, File upload form, Newsletter etc with zero coding knowledge. Easy to edit, comes with Google recaptcha for security. This all-in-one contact form builder can help you capture more leads & boost sales. You can connect these forms with any 3rd party apps like Mailchimp, Mailbuster, Hubspot, Klavio or your custom CRM. You can create any type of professional looking form like Contact us, Survey form, Registration form, Application form, Inquiry form, Quote request form, Booking form, Order form, File upload form, Newsletter etc with zero coding knowledge. Easy to edit, comes with Google recaptcha for security. more Easy to build personalised forms with no technical skills. Unlimited fields. Connect forms to 3rd party apps like Mailchimp, HubSpot etc using API Connector. Supports all types of forms including file uploads with google ReCaptcha. Apply custom styles to your form. Personalize appearance of individual fields. Unlimited submissions - view in-app or via email with ability to Export in CSV.

4.1(Reviews)

Create color or image swatches for your products The purpose of the app is to convert your product variant options (typically dropdowns) into color swatches, image swatches, or text swatches. Create swatches for all products in bulk, or for specific products only. Customize the design of your swatches, the shape and size. The purpose of the app is to convert your product variant options (typically dropdowns) into color swatches, image swatches, or text swatches. Create swatches for all products in bulk, or for specific products only. Customize the design of your swatches, the shape and size. more Swatch types: Text swatches, Color swatches, Multicolor swatches, Image swatches Create swatches globally for all products, or for specific product individually Various swatch shapes and sizes, fully customizable design of swatches

5.0(Reviews)

Add a free shipping progress bar to motivate your customers to buy more and boost AOV! A Free Shipping Bar motivates customers to buy more to unlock free shipping. This intuitive free shipping progress bar takes only one minute to set up. Enhance customer engagement by displaying their progress towards the free shipping goal as they add items to their cart. Inspire shoppers to finalize their purchases by reaching the predetermined cart value, seamlessly integrating motivation with convenience. A Free Shipping Bar motivates customers to buy more to unlock free shipping. This intuitive free shipping progress bar takes only one minute to set up. Enhance customer engagement by displaying their progress towards the free shipping goal as they add items to their cart. Inspire shoppers to finalize their purchases by reaching the predetermined cart value, seamlessly integrating motivation with convenience. more Display a free shipping offer with progressive shipping goal to boost AOV Customize text, cart goals, and colors Simple, easy to use app with no coding required

0.0(Reviews)

A simple map section for your store. Display your locations by entering their names and addresses. IzyMaps makes it easy to add one or more store locations to your store. Customize the layout, highlight multiple locations, and even show the nearest one to your customer automatically. With flexible styling options and a clean design, it’s perfect if you're seeking a straightforward, elegant solution. IzyMaps makes it easy to add one or more store locations to your store. Customize the layout, highlight multiple locations, and even show the nearest one to your customer automatically. With flexible styling options and a clean design, it’s perfect if you're seeking a straightforward, elegant solution. more Add a Google Map with one or multiple store locations Auto-locate and show the nearest store based on customer location Let customers search by name, city, or address to find the right store Customize layout, colors, and content to match your store’s look

0.0(Reviews)

IzyRent is a complete and easy-to-use app for rentals, bookings, events, services & appointments Essential for every bookings, rentals, events, services, & appointments business. One click and you can now take hotel bookings, rent equipment & clothings, sell courses & a lot more. You dont have to set each availability date. It's fully dynamic. You can track all your current bookings directly from the app or on your favorite calendar! Speed and ergonomy is important, that's why IzyRent use a fast and lightweight calendar for best performance & user-experience. Essential for every bookings, rentals, events, services, & appointments business. One click and you can now take hotel bookings, rent equipment & clothings, sell courses & a lot more. You dont have to set each availability date. It's fully dynamic. You can track all your current bookings directly from the app or on your favorite calendar! Speed and ergonomy is important, that's why IzyRent use a fast and lightweight calendar for best performance & user-experience. more Auto-Block of Dates, Manual Bookings & Reminders. Discount Price & Special Rates based on any dates you want. Deposit Option & Pay Later for caution and partial online payment. Add products Add-ons and ask informations from customer with booking notes. Synchronize with Google, iCloud, Outlook, AirBNB & every iCalendar solution!

5.0(Reviews)

"Create customizable, responsive countdown timers to boost urgency and drive more sales." Boost conversions with the Jiffy Countdown Timer app, creating urgency and scarcity to drive customer actions. Perfect for flash sales, product launches, and high-traffic events like Black Friday, it lets you easily add countdown timers to announcement bars, product pages, and more. Increase engagement, reduce cart abandonment, and elevate sales with ease. Whether for daily deals or scheduled events, the app is a powerful tool to grow your e-commerce store. Compatible with Online Store 2.0 !!! Boost conversions with the Jiffy Countdown Timer app, creating urgency and scarcity to drive customer actions. Perfect for flash sales, product launches, and high-traffic events like Black Friday, it lets you easily add countdown timers to announcement bars, product pages, and more. Increase engagement, reduce cart abandonment, and elevate sales with ease. Whether for daily deals or scheduled events, the app is a powerful tool to grow your e-commerce store. Compatible with Online Store 2.0 !!! more Custom Countdown Timers: Create and customize timers for key store areas. Complete Customization: Customize text, colors, and styles to match your brand. Optimized for Sales Events: Perfect for Black Friday, Cyber Monday, and more.

0.0(Reviews)

Add size guide & size charts that matches your brand, lightweight, fast, won’t slow down your store Getting returns because customers pick the wrong size? Our size chart app helps fix that. Create clear, fast-loading size charts and size guides with auto unit conversion, prebuilt templates, and fully flexible layouts. Show measurements with images, tables, or text, and customise every detail with plenty of settings. Translate your size guides for global shoppers, flexible size chart button placement options, and rely on our personalised support. We’ve got everything you need, try it out Getting returns because customers pick the wrong size? Our size chart app helps fix that. Create clear, fast-loading size charts and size guides with auto unit conversion, prebuilt templates, and fully flexible layouts. Show measurements with images, tables, or text, and customise every detail with plenty of settings. Translate your size guides for global shoppers, flexible size chart button placement options, and rely on our personalised support. We’ve got everything you need, try it out more Add tabs, images tables to size chart & create flexible size guide, size charts Assign size charts & size guide to specific products, collections, tags & vendor Flexible size chart & guide button placement option + custom button positioning Mobile & desktop responsive size chart, sizing guide & size charts Multi-language Support – Make sizing guides, size charts & size chart global

5.0(Reviews)

Refresh your buyer’s memory and boost sales by Recently Viewed Products in your store. Generate more revenue | Soft-sell products | Simplify the checkout process. Customers may want to pick up their shopping journey from where they have last left off. The Recently Viewed Products feature offers them an overview of the items they may have explored of late. It serves as a reminder for recently viewed items that once held their interest and encourages them to complete the purchase. We also offer homepage customization to display Recently Viewed Products on the home screen. Generate more revenue | Soft-sell products | Simplify the checkout process. Customers may want to pick up their shopping journey from where they have last left off. The Recently Viewed Products feature offers them an overview of the items they may have explored of late. It serves as a reminder for recently viewed items that once held their interest and encourages them to complete the purchase. We also offer homepage customization to display Recently Viewed Products on the home screen. more Multiple Language Translation Support Mobile-friendly display without losing out on features and functionalities. Customize the “Buy Now/Add to Cart” button to maintain brand consistency. Customize recently viewed products with border and background color and display. Enable or disable the recently viewed product slider and auto slider feature.

4.5(Reviews)

Increase sales and AOV with combo products, kits, bundle box sets, and mix & match offers. Encourage customers to spend more by offering product bundles at a discounted price, clear excess stock by bundling slow-moving items with bestsellers, and run seasonal promotions like holiday gift sets. Upsell complementary products in a single bundle, or simplify gifting with ready-made boxes. Create flexible bundle pages for every sales strategy and increase profits. Install fast – go live today – start selling bundles in minutes! Encourage customers to spend more by offering product bundles at a discounted price, clear excess stock by bundling slow-moving items with bestsellers, and run seasonal promotions like holiday gift sets. Upsell complementary products in a single bundle, or simplify gifting with ready-made boxes. Create flexible bundle pages for every sales strategy and increase profits. Install fast – go live today – start selling bundles in minutes! more Mix & Match: Let customers create personalized bundle sets. Build-a-Box: Shoppers pick products to fill their own box. Bundle Page: Dedicated bundle landing to boost AOV. Flexible Variants: Offer combos with multiple product options. Use for Kits, Gift Sets, Meal Packs, Outfit Builders & More.

4.8(Reviews)

Build custom forms without coding required and boost lead generation. Effortlessly connect with your customers and generate more leads and product sales with robust Contact Form Builder. Easy to build Popup & Page Embedded Forms, Multi-Steps Forms & Floating Bubble Forms. Select the fields that customers need to complete in the form, ensuring you gather all the necessary information to provide customer support. Our user-friendly Contact Form Builder app effortlessly integrates with your preferred software tools, such as Mailchimp, Mailerlite, and Getresponse. Effortlessly connect with your customers and generate more leads and product sales with robust Contact Form Builder. Easy to build Popup & Page Embedded Forms, Multi-Steps Forms & Floating Bubble Forms. Select the fields that customers need to complete in the form, ensuring you gather all the necessary information to provide customer support. Our user-friendly Contact Form Builder app effortlessly integrates with your preferred software tools, such as Mailchimp, Mailerlite, and Getresponse. more Effortlessly create forms and collect data from your customers. Customize the app to suit your website style. Trigger your form anywhere. Lots of form templates to save your time. Many integrations to make automation.

5.0(Reviews)

Simplify feedback collection with fun, mobile-friendly emoji forms. The Emoji Request Feedback and Reviews app offers a fun and engaging way to collect customer feedback. Store owners can effortlessly create custom feedback forms using emojis, stars, or hearts, allowing customers to express their opinions quickly and visually. Customizable to fit your store’s brand, the app enables you to gather valuable insights and boost customer satisfaction without any coding required. It’s fully mobile-optimized, ensuring that customers can provide feedback from any device. The Emoji Request Feedback and Reviews app offers a fun and engaging way to collect customer feedback. Store owners can effortlessly create custom feedback forms using emojis, stars, or hearts, allowing customers to express their opinions quickly and visually. Customizable to fit your store’s brand, the app enables you to gather valuable insights and boost customer satisfaction without any coding required. It’s fully mobile-optimized, ensuring that customers can provide feedback from any device. more Customizable emoji feedback forms that match your store’s branding. Simple setup and management of feedback forms. Pre-made templates for quick and easy form creation. Fully mobile-optimized for a smooth customer experience.

0.0(Reviews)

Boost AOV with an announcement bar for free delivery with animated shipping bar and goal messages. Motivate shoppers and boost sales with a customizable free shipping bar. Display real-time cart goal progress, create urgency with countdown timers, or spotlight limited-time offers. Choose from top bar, bottom bar, or embed directly on product pages. Tailor the free shipping widget to match your brand’s style. Set up in 2 minutes - no coding needed. Whether it’s a free shipping progress bar, flash sale, or product launch timer - capture attention and drive more conversions. Motivate shoppers and boost sales with a customizable free shipping bar. Display real-time cart goal progress, create urgency with countdown timers, or spotlight limited-time offers. Choose from top bar, bottom bar, or embed directly on product pages. Tailor the free shipping widget to match your brand’s style. Set up in 2 minutes - no coding needed. Whether it’s a free shipping progress bar, flash sale, or product launch timer - capture attention and drive more conversions. more Use as announcement bar, promo bar, or free shipping widget. Utilize a countdown bar and sales timer for special events to boost sales. Display shipping goal as a header bar, bottom bar or embed on product pages. Free shipping progress bar for real-time goal tracking. Fully responsive on desktop, tablet, and mobile devices.

4.5(Reviews)

GDPR banner to protect privacy, safeguard store & build trust - collect cookie consent in seconds. Create customizable cookie banners, consent bars, and popups to protect user privacy and meet regulations worldwide. Stay GDPR, CCPA, and ePrivacy compliant with tiny cookie widget. Easily match your store’s branding, choose from pre-made templates, and display on any device. Display GDPR legal cookie on all or specific pages. Target customers from different locations like EU, UK, or California - protect your business, build trust, and avoid costly fines with fast, effortless setup. Create customizable cookie banners, consent bars, and popups to protect user privacy and meet regulations worldwide. Stay GDPR, CCPA, and ePrivacy compliant with tiny cookie widget. Easily match your store’s branding, choose from pre-made templates, and display on any device. Display GDPR legal cookie on all or specific pages. Target customers from different locations like EU, UK, or California - protect your business, build trust, and avoid costly fines with fast, effortless setup. more Pre-built cookies popup templates for quick cookie policy setup. Match privacy popup design to your store’s branding & colors. Fully responsive customer privacy banner for desktop & mobile. Display consent cookies banners on all or selected store pages. Install GPDR & go live in minutes, without any technical skills.

0.0(Reviews)

Present your work professionally with a responsive and customizable portfolio photo gallery. Create your perfect portfolio with our easy-to-use photo gallery app. Whether you're building an illustrator portfolio, showcasing a project portfolio, or curating an art portfolio, this is your all-in-one solution. Enjoy an easy portfolio experience with customizable layouts and stunning visuals. From portfolio sammlung to modern galeria styles, our gallery tools make presenting your work effortless and beautiful. Create your perfect portfolio with our easy-to-use photo gallery app. Whether you're building an illustrator portfolio, showcasing a project portfolio, or curating an art portfolio, this is your all-in-one solution. Enjoy an easy portfolio experience with customizable layouts and stunning visuals. From portfolio sammlung to modern galeria styles, our gallery tools make presenting your work effortless and beautiful. more Choose from grid, collage, or list views to showcase your work. Display projects with engaging effects, adding descriptions and links. Customize colors, fonts, CTA buttons, and author details to match your style. Allow visitors to filter projects by category for easy navigation. As zify photo gallery & portfolio, portfolio gallery by powr, elfsight portfolio

5.0(Reviews)

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About Custom CSS Apps for Shopify

Custom CSS apps are essential tools for Shopify merchants looking to enhance their store's functionality and improve customer experience. These specialized applications help store owners streamline operations, increase sales, and provide better service to their customers.

When choosing a custom css app for your Shopify store, consider factors such as features, pricing, customer support, and compatibility with your theme and other apps. Reading reviews from other merchants can also provide valuable insights into the app's performance and reliability.

The apps listed on this page represent some of the best custom css solutions available in the Shopify App Store. Each has been selected based on its functionality, user ratings, and overall value for Shopify merchants.