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

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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)

Drive Sales! Use your INSTAGRAM feed to Unlock New Ways for Customers to Shop your AMAZING Products! InstaShop embeds galleries of product pictures anywhere in your store. Galleries allow you to display ‘pins’ in the pictures. Pins link directly to your store’s product pages. Pictures are pulled from your Instagram account; connect your account and hand select the pictures you want to appear. You then add the pins. Each pin links to a product page: with the product and price displayed alongside the gallery. Choose from a range of gallery layouts and design options to fit your store. InstaShop embeds galleries of product pictures anywhere in your store. Galleries allow you to display ‘pins’ in the pictures. Pins link directly to your store’s product pages. Pictures are pulled from your Instagram account; connect your account and hand select the pictures you want to appear. You then add the pins. Each pin links to a product page: with the product and price displayed alongside the gallery. Choose from a range of gallery layouts and design options to fit your store. more Create Beautiful Instagram Galleries that KEEP Customer in your Store. Add 'CLICK TO BUY' Pins to Pictures. Pins Link to Products. Pins Drive SALES! Product Galleries, Automatically Created and added to Individual Product Pages. InstaShop keeps customers in your store, FOCUSED on making a PURCHASE Advanced Analytics Helps You See Which Pictures Make More Sales

4.8(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)

Build custom contact forms and send submissions to CRMs, email, APIs, and tools Contact Form to Any API is a powerful Shopify form builder for merchants, agencies, and developers. Build unlimited custom forms using a visual editor, collect unlimited submissions, and control how your data flows. Send form data to HubSpot, Salesforce, Zoho CRM, Mailchimp, Slack, or Zapier. Pro includes OAuth 2.0 authentication for the most popular CRMs, so there are no API keys to manage. No coding required. Free plan available with no limits on forms or submissions. Contact Form to Any API is a powerful Shopify form builder for merchants, agencies, and developers. Build unlimited custom forms using a visual editor, collect unlimited submissions, and control how your data flows. Send form data to HubSpot, Salesforce, Zoho CRM, Mailchimp, Slack, or Zapier. Pro includes OAuth 2.0 authentication for the most popular CRMs, so there are no API keys to manage. No coding required. Free plan available with no limits on forms or submissions. more Build unlimited Shopify forms with no submission limits Drag-and-drop form builder that works with all Shopify themes OAuth 2.0 authentication for HubSpot, Salesforce, Zoho, Pipedrive and many more Start free and upgrade only when automation is needed Connect without API keys - OAuth 2.0 login for 8 CRM and business platforms

4.0(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

1.0(Reviews)

Help customers find your physical stores, view opening hours, and drive local in-store sales. IzyMaps lets you add a sleek Google Maps store locator to your Shopify store with no Google API key or Google Cloud account needed. Add single or multiple locations, auto-detect nearest stores, and display opening hours and direct Google directions. Fully customizable, native OS 2.0 theme section with zero impact on page speed, and ready in minutes to drive local retail foot traffic. IzyMaps lets you add a sleek Google Maps store locator to your Shopify store with no Google API key or Google Cloud account needed. Add single or multiple locations, auto-detect nearest stores, and display opening hours and direct Google directions. Fully customizable, native OS 2.0 theme section with zero impact on page speed, and ready in minutes to drive local retail foot traffic. more Zero setup hassle: No Google API keys or Google Cloud account required Interactive Google Map section with single or multiple store location pins Auto-detect nearest store and instant search by city, address, or zip code Display store opening hours, contact details, and one-click directions Native OS 2.0 theme section: Fast, responsive, and zero impact on speed

5.0(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!

4.6(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.

4.6(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 (fixed discount or percentage discount), 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. Use bundle maker to 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 (fixed discount or percentage discount), 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. Use bundle maker to 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 with bundle builder. Build-a-Box / Boxbuilder: Shoppers pick products to fill their own box. Bundle Page: Dedicated bundle landing to boost AOV. Combo Bundle / Flexible Variants: Offer combos with multiple product options. Use Bundles app for Bundle Kits, Gift Sets, Meal Packs, Outfit Builders & More.

4.9(Reviews)

Stay compliant with legal age restrictions and protect business age verify 18+ or 21+ age popup. Build shopper trust and control access to restricted content with Age Verification 21. Instantly set up an 18+ or 21+ agegate using customizable popups. Choose from yes/no buttons, birth year, or full date of birth. Use disclaimer on all pages or restrict access to specific product categories like alkohol, wine, tobacco, adult content, CBD, or regulated industries. Verify age or redirect underage visitors automatically - no coding required. Keep your store safe, trusted, and legally compliant. Build shopper trust and control access to restricted content with Age Verification 21. Instantly set up an 18+ or 21+ agegate using customizable popups. Choose from yes/no buttons, birth year, or full date of birth. Use disclaimer on all pages or restrict access to specific product categories like alkohol, wine, tobacco, adult content, CBD, or regulated industries. Verify age or redirect underage visitors automatically - no coding required. Keep your store safe, trusted, and legally compliant. more Start with ready-made age verifier designs for age verification pop up. Customize age check popup layout, text, and background easily. Choose age checker method: yes/no, birth year, or full DOB & minimum age limit. Add age restriction popup on all or selected pages in one click. Redirect underage users or block access to sensitive content as alcohol, tobacco

5.0(Reviews)

Create stunning Halloween banners in minutes. Engage shoppers & boost sales - no coding needed. Show banners that build trust and drive more sales. Present promotions, spotlight new arrivals or events, and announce sales with elegant, mobile-friendly designs. Announcement Banner by Kaktus boosts engagement with eye-catching banners that match your brand. Customize layouts, colors, and speed easily - no coding needed. Install in minutes and track clicks and views with built-in analytics. Perfect for keeping shoppers informed and turning visits into purchases. Show banners that build trust and drive more sales. Present promotions, spotlight new arrivals or events, and announce sales with elegant, mobile-friendly designs. Announcement Banner by Kaktus boosts engagement with eye-catching banners that match your brand. Customize layouts, colors, and speed easily - no coding needed. Install in minutes and track clicks and views with built-in analytics. Perfect for keeping shoppers informed and turning visits into purchases. more Build Halloween image banners, add social media buttons and discounts ease. Choose pre-made templates or customize layouts to match your style. Embed banners anywhere or show as floating pop-ups to boost visibility. Track clicks & views with built-in analytics tools to optimize your strategy. Mobile-friendly designs match your brand on all devices.

0.0(Reviews)

Flexible custom contact forms with file upload to handle inquiries and boost lead generation. Effortlessly connect with your customers to generate more leads and product sales with Contact Form Builder. Easy to build Popup Contact Form, Page Embedded Forms, Signup Form, Multi Step Forms & Floating Bubble Forms. Select the fields, add contact form file upload, ensuring you gather all the information in register form or data collection form. Our user-friendly Contact Form app effortlessly integrates with your email providers, such as Mailchimp, Mailerlite, and Getresponse. Effortlessly connect with your customers to generate more leads and product sales with Contact Form Builder. Easy to build Popup Contact Form, Page Embedded Forms, Signup Form, Multi Step Forms & Floating Bubble Forms. Select the fields, add contact form file upload, ensuring you gather all the information in register form or data collection form. Our user-friendly Contact Form app effortlessly integrates with your email providers, such as Mailchimp, Mailerlite, and Getresponse. more Effortlessly create contact forms and collect data from your customers. Customize formulaire contact& formulieren to suit your website style. Trigger your signup form, formulario de contacto anywhere. Drag&drop form builder with file upload and AI generation to save your time. Easy contact forms&lead generation form with integrations to make automation.

5.0(Reviews)

Show product recommendations and cross-sell offers on key pages to increase average order value. Product Related | Also Bought | FBT allows you to show related products that customers may purchase along with the selected product. This helps increase sales and push deals for a better shopping experience. Offer bundle-style cross-sells to push higher-value carts or show “Complete the look” or “You may also like” sets to increase AOV. No coding needed—set up widgets in a few steps and start driving more revenue from each order by using your ultimate sales frequently bought together app. Product Related | Also Bought | FBT allows you to show related products that customers may purchase along with the selected product. This helps increase sales and push deals for a better shopping experience. Offer bundle-style cross-sells to push higher-value carts or show “Complete the look” or “You may also like” sets to increase AOV. No coding needed—set up widgets in a few steps and start driving more revenue from each order by using your ultimate sales frequently bought together app. more Frequently Bought Together widget display on the related product pages. Customize FBT widget design, text, and layout to match your brand. Recommended and Manual Related Products - Also Bought for upsell&cross-sell. Line, grid, Amazon styles for frequently bought together products. Also bought – related products pro to promote bestsellers or seasonal items.

4.8(Reviews)

Simplify feedback collection, get customer reviews 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 emoji benefits feedback forms. Pre-made templates for quick and easy rating and review form creation. Fully mobile-optimized for a smooth сustomer кeviews & щpinions experience. Let visitors share feedback with emoji requests & submit custom reviews easily.

5.0(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 shiping 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 on product pages. Tailor the free shipping cart bar to match your brand’s style. Set up in 2 minutes ultimate free shipping bar - without coding. 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 shiping 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 on product pages. Tailor the free shipping cart bar to match your brand’s style. Set up in 2 minutes ultimate free shipping bar - without coding. 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, free delivery 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.

4.7(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.

5.0(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 gallery, 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 galerie projects by category for easy navigation. As zify photo gallery & portfolio, portfolio gallery by powr, elfsight portfolio

5.0(Reviews)

Create beautiful price tables to showcase product compare plans, tiers, or service packages. Make it easy for shoppers to compare packages, services, or plans at a glance. By showcasing options side-by-side, you shorten decision time and encourage more premium or higher-value purchases. Use comparison tables to cross-sell related products, wholesale pricing volume table while keeping your store organized, professional, and easy to navigate. Install Pricing Table app to showcase your packages with clarity, boost conversions, and make it easier for shoppers to choose your best offerings. Make it easy for shoppers to compare packages, services, or plans at a glance. By showcasing options side-by-side, you shorten decision time and encourage more premium or higher-value purchases. Use comparison tables to cross-sell related products, wholesale pricing volume table while keeping your store organized, professional, and easy to navigate. Install Pricing Table app to showcase your packages with clarity, boost conversions, and make it easier for shoppers to choose your best offerings. more Accelerate purchase decisions with side-by-side pricing comparisons. Adjust price table size, spacing, colors, and borders to match your brand. Run price test variations with multiple pricing table layouts. Add as many plan features in specification table as you need for full clarity. Draw attention to your price match “Best” or “Recommended” choice.

0.0(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.