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 to save your time. Easy contact forms&lead generation form with integrations to make automation.
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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Help customers easily find their true size with detailed size charts and reduce return rate. Size Guides & Size Chart app help your customers to say goodbye to sizing frustrations. Create custom size charts with ease using size selector. Designed for shop owners, our app lets you build accurate, true-to-size charts, size finders, size recommendation and fit guides to enhance your customers' shopping experience. Perfect for clothes size chart, shoes size or accessories. Increase your confidence, increase your profits and make sure that size matters! Size Guides & Size Chart app help your customers to say goodbye to sizing frustrations. Create custom size charts with ease using size selector. Designed for shop owners, our app lets you build accurate, true-to-size charts, size finders, size recommendation and fit guides to enhance your customers' shopping experience. Perfect for clothes size chart, shoes size or accessories. Increase your confidence, increase your profits and make sure that size matters! more Easily create sized size charts comparison table tailored to your products. Visually showcase true size options in size table for your customers. Add detailed measurement guides to assist customers in finding the right size. Simple, intuitive sizing chart design makes it easy to find the information. Size matters & fit guide widget that works seamlessly on all devices.
Create stunning 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 image banners, add social media buttons and discounts with 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.
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.
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.
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.
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
Boost Sales and Ignite Urgency with FOMO Sale Countdown Timer Bar to Increase Conversions! Sales count down timer bar effectively instills a sense of urgency and scarcity in your store. Elevate your customers' FOMO by adding a hurrify countdown timer, pushing them to buy. Create urgency with essential countdown banner or coundown timer, and encourage customers to make a purchase. Maximize your sales during special promotions, flash sales, and seasonal events. Transform your product launches with sales popup countdown time bar or discount timer that build hype and drive early sales. Sales count down timer bar effectively instills a sense of urgency and scarcity in your store. Elevate your customers' FOMO by adding a hurrify countdown timer, pushing them to buy. Create urgency with essential countdown banner or coundown timer, and encourage customers to make a purchase. Maximize your sales during special promotions, flash sales, and seasonal events. Transform your product launches with sales popup countdown time bar or discount timer that build hype and drive early sales. more Countdown timer ultimate tool to highlight limited-time offers with timer cart. Add customizable countdown bars, sales timer to ignite urgency and boost sales. Easily create and customize countdown cart timer to match your brand's style. Set specific triggers & rules when to show the urgency bear without any coding. Track the performance of sale timers & FOMO countdown timer.
Approve wholesale B2B buyers faster with custom wholesale forms that unlock special pricing. Wholesale Forms is a complete solution for managing B2B and wholesale processes and wholesale inquiry. Build custom multi-step registration forms to collect resale certificates, VAT IDs, or business licenses. Let resellers select preferences like packaging or shipping in the form. Simplify wholesale workflows and create a tailored experience for wholesale customers. Launch your wholesale signup form without coding in under 5 minutes and approve your first B2B customer today! Wholesale Forms is a complete solution for managing B2B and wholesale processes and wholesale inquiry. Build custom multi-step registration forms to collect resale certificates, VAT IDs, or business licenses. Let resellers select preferences like packaging or shipping in the form. Simplify wholesale workflows and create a tailored experience for wholesale customers. Launch your wholesale signup form without coding in under 5 minutes and approve your first B2B customer today! more Build advanced B2B wholesale multi step forms with a drag-and-drop form builder. Embed forms anywhere on your store or trigger them via popup. Ideal for reseller signups, vendor applications, or wholesale club access. Collect VAT IDs, resale certificates, and business licenses to stay compliant. Segment B2B customers based on form responses and approve before granting access
Effortlessly build custom RSVP forms in minutes and track responses with RSVP Form Builder. RSVP Form Builder is the easiest way to create custom event registration and RSVP forms. Perfect for weddings, conferences, parties, or private sales, it helps you track event sign ups in real time, manage multiple events, and keep everything organized. Customize every field with a simple drag-and-drop editor, match your brand style, and share your form anywhere. Simplify event planning and boost attendance - install today and make event management effortless. RSVP Form Builder is the easiest way to create custom event registration and RSVP forms. Perfect for weddings, conferences, parties, or private sales, it helps you track event sign ups in real time, manage multiple events, and keep everything organized. Customize every field with a simple drag-and-drop editor, match your brand style, and share your form anywhere. Simplify event planning and boost attendance - install today and make event management effortless. more Build custom event registration forms in minutes - no coding needed. Track sign-ups live and manage multiple events effortlessly. Export guest lists to CSV or Excel for easy organization. Fully customize fields, styles, and branding with drag & drop. Add forms anywhere and get real-time response updates instantly.
Kainic-Plugin makes recommending products simple, and helps you understand customers' needs. With Kainic-Plugin, your customers can view related products to any product, helping to enhance product discovery and improve order value. This app brings recommendation-style features into Shopify, allowing merchants to create a tailored product upsell and recommendation experience. With Kainic-Plugin, your customers can view related products to any product, helping to enhance product discovery and improve order value. This app brings recommendation-style features into Shopify, allowing merchants to create a tailored product upsell and recommendation experience. more Track customer behavior and activity across events. Customize which customer events are tracked. Display a list of recommended products based on customer interaction patterns.
Show product stock by location, geo-search nearest store for availability, & create location filters A must-have app for merchants using Shopify’s multiple locations or local pickup. Show available and incoming stock by location on product pages, let customers geo-search the nearest store, create smart collections and filters by location, allow store selection, and restrict orders by customer tags. Drive foot traffic, boost sales, and give shoppers full visibility into your inventory across all locations. A must-have app for merchants using Shopify’s multiple locations or local pickup. Show available and incoming stock by location on product pages, let customers geo-search the nearest store, create smart collections and filters by location, allow store selection, and restrict orders by customer tags. Drive foot traffic, boost sales, and give shoppers full visibility into your inventory across all locations. more Display location inventory information on product pages. Create location metafields to build smart collections & filter by availability Access location stock info in liquid using location inventory JSON metafields Let customers choose a specific location to shop from for their orders Restrict locations customers can order from using customer tags - ideal for B2B
Displays live precious metal prices, ideal for selling fine jewelry, bullions and coins. Keep Up With Metals helps you display real-time precious metal prices directly on your storefront, giving your customers up-to-date information on gold, silver, platinum, and more. Customize the widget to match your store’s style, apply flexible markups, and easily adjust settings. Perfect for stores selling jewelry, bullion, or any metal-based products, this app ensures pricing transparency and improves customer trust, helping drive sales and engagement with minimal setup required. Keep Up With Metals helps you display real-time precious metal prices directly on your storefront, giving your customers up-to-date information on gold, silver, platinum, and more. Customize the widget to match your store’s style, apply flexible markups, and easily adjust settings. Perfect for stores selling jewelry, bullion, or any metal-based products, this app ensures pricing transparency and improves customer trust, helping drive sales and engagement with minimal setup required. more Real-time metal prices for gold, silver, platinum, palladium and more Customizable widget design to match your store’s theme. Flexible markup options: percentage or fixed amount adjustments. Track impressions, clicks, and revenue with built-in analytics dashboard. Seamless integration with Shopify for easy setup and use.
Create unlimited app options to help merchants increase sales. This app helps you to create infinite product options, which help merchants sell their products and increases sales. Allow shoppers to design their own custom products based on flexible option choices. The function of "option template" can manage options more flexibly. This app is compatible with drawer cart and buy now button. This app helps you to create infinite product options, which help merchants sell their products and increases sales. Allow shoppers to design their own custom products based on flexible option choices. The function of "option template" can manage options more flexibly. This app is compatible with drawer cart and buy now button. more Create unlimited app options to help merchants increase sales. Support ajax cart and "buy it now" Compatible with Online Store 2.0 Themes Flexible and unlimited options template
Reduce returns & increase sales with clean size charts, guides & personalized size recommender Give your store the sleek, professional sizing experience customers expect from top fashion brands. Kiwi makes sizing simple with clean size charts, detailed guides, and AI powered fit recommendations. Customize everything to match your brand. Add size charts and fit recommendations to any product, from apparel to pet collars to snowboards, so customers pick the right size and you deal with fewer returns. Give your store the sleek, professional sizing experience customers expect from top fashion brands. Kiwi makes sizing simple with clean size charts, detailed guides, and AI powered fit recommendations. Customize everything to match your brand. Add size charts and fit recommendations to any product, from apparel to pet collars to snowboards, so customers pick the right size and you deal with fewer returns. more Import size charts from images, webpage, or CSV. Or, build your own Size recommender for clothes or for products where you can't predict body size Add multiple size tables, images, videos, tabs, and more to your size charts Create a product or collection-based size guides that auto-apply to new products Input sizing in any unit and the app will automatically do unit conversions
AI Search & product discovery platform that significantly improves conversion rate and AOV. Perfect for busy merchandising teams, Klevu advanced AI search and recommendations engine helps companies efficiently increase on-site search revenue. Plus, shoppers get personalized product recommendations, and are able to quickly find what they need through our filter and navigation features on product listing pages. Fully compatible with Shopify Markets. With our innovative features, retailers can provide customers with an enjoyable, streamlined shopping experience. Perfect for busy merchandising teams, Klevu advanced AI search and recommendations engine helps companies efficiently increase on-site search revenue. Plus, shoppers get personalized product recommendations, and are able to quickly find what they need through our filter and navigation features on product listing pages. Fully compatible with Shopify Markets. With our innovative features, retailers can provide customers with an enjoyable, streamlined shopping experience. more Advanced AI search and merchandising that learns from your shoppers over time. Easy-to-use merchandising dashboard where you can test and schedule campaigns. Add advanced filtering to product listing pages and manage facets shown. Onsite Search, Merch & Recommendations fully compatible with Shopify Markets. Robust APIs, SDKs and custom storefront documentation, compatible with Hydrogen.
Menu for featuring products, collections or links to improve visibility and accessibility Add circle menu or square menu bar to your theme section and anywhere in your 2.0 theme. Great for shop who wants to create social media familiar menu to feature products, collections and pages. Clean and neat thumbnail navigation menu to redirect users from collections to specific items. Collection menu like instagram stories that made it easy for user to navigate to the right page. With easy navigation and eye catching visual menu, you will be able to reduce bounce rate and improve conversion. Add circle menu or square menu bar to your theme section and anywhere in your 2.0 theme. Great for shop who wants to create social media familiar menu to feature products, collections and pages. Clean and neat thumbnail navigation menu to redirect users from collections to specific items. Collection menu like instagram stories that made it easy for user to navigate to the right page. With easy navigation and eye catching visual menu, you will be able to reduce bounce rate and improve conversion. more Display menu on mobile or desktop or both. Support mobile menu navigation bar Create multiple menu groups for different product types or collections Comprehensive design options to adjust menu gap, width, margin and custom css Menu badge for circle menu to highlight new or collection on sales Support multiple languages
Fashion-Optimized Cart Drawer to Boost AOV: Upsells, Cross-Sell, Rewards, Free Gift & Fast Checkout Kraken Cart helps fashion and apparel stores boost sales with a fully customizable cart drawer. Show in-cart styling suggestions with cross-sells, add upsells, and offer tiered rewards like discounts, free shipping, or gifts. Enable features like shipping protection, subscriptions, discount codes, gift wrap, order notes, and trust badges. Designed to match your brand and deliver a seamless experience across desktop and mobile for better conversions. Easy setup no code required, launch instantly. Kraken Cart helps fashion and apparel stores boost sales with a fully customizable cart drawer. Show in-cart styling suggestions with cross-sells, add upsells, and offer tiered rewards like discounts, free shipping, or gifts. Enable features like shipping protection, subscriptions, discount codes, gift wrap, order notes, and trust badges. Designed to match your brand and deliver a seamless experience across desktop and mobile for better conversions. Easy setup no code required, launch instantly. more Motivate shoppers with in-cart rewards unlocking discounts or gifts. Increase sales with upsells and cross-sells directly in the cart drawer. Offer shipping protection options right within the cart for peace of mind. Enable customers to select subscription plans directly from the cart. Build trust by displaying custom badges directly in the cart interface.
Drive sales with dynamic content,advanced flows & personalized discounts for product recommendations Lantern AI will help you drive sales and collect essential customer data and preferences with interactive product recommendation quizzes. Our AI will jumpstart your quiz setup with a fully customized, product matched quiz in under a minute. Choose from multi-choice, single choice, optin, transition or input pages and dynamically customize your quiz based on answers. Offer dynamically tailored product matches or need-based content like routines, with discount incentives to maximize conversions. Lantern AI will help you drive sales and collect essential customer data and preferences with interactive product recommendation quizzes. Our AI will jumpstart your quiz setup with a fully customized, product matched quiz in under a minute. Choose from multi-choice, single choice, optin, transition or input pages and dynamically customize your quiz based on answers. Offer dynamically tailored product matches or need-based content like routines, with discount incentives to maximize conversions. more Start faster with fully customized TEMPLATES, AI or manual quiz generation. Full versatility with standalone or in-store pages, embed, or popup quizzes Create complex quiz flows with intuitive skip/show logic & custom question paths Capture emails & phone numbers with easy Klaviyo, Omnisend & more integrations Boost sales and opt-in conversions with reward discounts as incentives
Enable Latitude marketing widgets on your product and cart pages. Drive more sales on your store. Promote your partnership with Latitude (AU) and Gem (NZ) Interest Free payments as a payment option for your customer to choose. Our long term plans starts from 6 months onwards, depending on your agreement with Latitude. Showing your customers that you provide interest free option at checkout encourages your customers to even shop more at your store by giving them more flexibility on payment terms. Promote your partnership with Latitude (AU) and Gem (NZ) Interest Free payments as a payment option for your customer to choose. Our long term plans starts from 6 months onwards, depending on your agreement with Latitude. Showing your customers that you provide interest free option at checkout encourages your customers to even shop more at your store by giving them more flexibility on payment terms. more Easily enable Latitude widget on your product pages Customise Latitude widget layout with visual preview Set minimum amount for price breakdown to show (for selected promotions only)
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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.