Flowbox is a User Generated Content platform developed for established eCommerce brands. Flowbox is a User Generated Content platform that helps brands leverage and distribute social content throughout the buyer journey to increase engagement, social proof and sales. Through our platform, our customers are able to collect, moderate and publish content to their website, online shop and social channels. Flowbox was founded in 2016 and is headquartered in Stockholm with regional offices in Amsterdam and Barcelona. Flowbox is a User Generated Content platform that helps brands leverage and distribute social content throughout the buyer journey to increase engagement, social proof and sales. Through our platform, our customers are able to collect, moderate and publish content to their website, online shop and social channels. Flowbox was founded in 2016 and is headquartered in Stockholm with regional offices in Amsterdam and Barcelona. more The key features you expect Built for the most demanding brands Rely on advanced data-driven insights Fuel every customer interaction with UGC
Custom CSS Shopify Apps
Discover the best custom css apps for your Shopify store. 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
Customisable Bundle Solution for Product Bundles, Quantity Breaks & Frequently Bought Together Transform your product pages with Fly's advanced bundle features: Create pure bundles with Product Bundles to showcase your best combinations.Build perfect Shop the Look bundles in seconds.Boost sales with Frequently Bought Together recommendation bundles.Drive bigger orders with quantity breaks and volume discounts.Mix and match any products or variants –no limits! Fully customisable with easy-to-use templates, built on Shopify's latest technology with real-time inventory sync-24/7 support. Transform your product pages with Fly's advanced bundle features: Create pure bundles with Product Bundles to showcase your best combinations.Build perfect Shop the Look bundles in seconds.Boost sales with Frequently Bought Together recommendation bundles.Drive bigger orders with quantity breaks and volume discounts.Mix and match any products or variants –no limits! Fully customisable with easy-to-use templates, built on Shopify's latest technology with real-time inventory sync-24/7 support. more Customisable Bundle Upsells, Quantity Breaks, & Simple bundles on Product page Using latest Shopify Bundle Tech for inventory management of individual SKU's Set offers like '%' & '$' Off on Bundle, BOGO, Tiered Volume discounts and more Customizable Widget UI, Branding & Messaging to match with your store's design Round-the-clock chat support, video-based FAQs & 1-on-1 Onboarding
App provides Upsell based Cart Drawer | Popup | Progress Shipping bar | Discount | Agree Terms Flying Cart Slide Drawer Cart skips the redirection to cart page when product is added to cart and show sidebar cart drawer or popup with your cart items. The app also includes the functionalities of Progress Shipping Bar, Discounts, Agree Terms, Upsell. You can rely on the app for hassle free experience for your users to see there products in cart anytime on your site and checkout at the same time. It also includes animated checkout button in cart drawer which will attract users attention. Flying Cart Slide Drawer Cart skips the redirection to cart page when product is added to cart and show sidebar cart drawer or popup with your cart items. The app also includes the functionalities of Progress Shipping Bar, Discounts, Agree Terms, Upsell. You can rely on the app for hassle free experience for your users to see there products in cart anytime on your site and checkout at the same time. It also includes animated checkout button in cart drawer which will attract users attention. more Easy Installation with no coding skill required | Boost Sales with Upselling Update cart through Cart Drawer and easy checkout option | Fully Customization Free Shipping Progress Bar with indicating amount left for free shipping Promo Code for adding discount coupon on slide cart only Announcement bar | I Agree To Cart Terms | Upsell | Cart Notes
Boost urgency & sales with customizable countdown timers on your store. FOMO - Countdown Timer Pro helps you drive sales by creating a sense of urgency. With customizable countdown timers, showcase limited-time offers and flash sales across your product pages. Perfect for promotions, it encourages quick purchases and reduces cart abandonment for higher conversions. FOMO - Countdown Timer Pro helps you drive sales by creating a sense of urgency. With customizable countdown timers, showcase limited-time offers and flash sales across your product pages. Perfect for promotions, it encourages quick purchases and reduces cart abandonment for higher conversions. more Customizable Countdown: Personalize fonts, colors, layouts, and preview live. Seamless Integration: Countdown timer appears on product pages as designed. Synced Countdown Action: Timer starts per settings, synced in preview and store.
Build custom forms with our easy-to-use Form Builder app. # At a Glance * You can build beautiful online forms as simple as 123. Just drag & drop fields to your form, select your notification email, and publish the form to any page. Minimum coding Skill required! * Creating your contact forms, order forms, event registration forms, online surveys and any other types of web forms has never been this easy! With the Advanced Form Builder real-time form editor, you can create and customize your form in minutes. Minimum coding skills required. # At a Glance * You can build beautiful online forms as simple as 123. Just drag & drop fields to your form, select your notification email, and publish the form to any page. Minimum coding Skill required! * Creating your contact forms, order forms, event registration forms, online surveys and any other types of web forms has never been this easy! With the Advanced Form Builder real-time form editor, you can create and customize your form in minutes. Minimum coding skills required. more Improve customer loyalty and drive business growth Easy-to-use interface and advanced features Create custom forms quickly and easily with minimum coding knowledge
Form builder with drag & drop, multilanguage, upload fields, auto styling and email autoresponder. With our form builder, you can create custom forms with important fields like Google reCaptcha and file image upload. Our AI-powered form editor allows you to build basic but also complex multistep forms like warranty claim, product registration, extended contact form, customer registration and company registration. View your submissions, UTMs and uploaded files of your form inside the app and approve or reject submissions. All created forms are WCAG compliant fast, responsive and pretty. With our form builder, you can create custom forms with important fields like Google reCaptcha and file image upload. Our AI-powered form editor allows you to build basic but also complex multistep forms like warranty claim, product registration, extended contact form, customer registration and company registration. View your submissions, UTMs and uploaded files of your form inside the app and approve or reject submissions. All created forms are WCAG compliant fast, responsive and pretty. more Multilanguage - translate your form and emails to all languages of your shop. Drag & drop builder - build any form, without code. Automate - connect your form with Shopify customers and third party apps. Upload field - add an upload field to your form for images or files. Auto styling - automatic form styling with your OS 2.0 theme and are very fast.
「formrun（フォームラン）」は、フォーム作成やフォームに入力された顧客情報の管理までをワンストップで行うことができるツールです。 多種多様なテンプレートから1つを選択することで、エンジニアの手を借りずとも誰でも簡単にフォーム作成することができ、フォームから送信された顧客情報をステータス毎にチームで管理することができるボード画面、複数人で利用できるメール機能により、顧客獲得からコミュニケーション対応の生産性向上に貢献します。 本アプリの利用に関しては、「リソース」の「よくある質問」に掲載された「利用規約」が適用されます。必ず事前に内容をご確認ください。アプリのご利用を頂いた場合、「利用規約」にご同意頂いたものとみなされます。 多種多様なテンプレートから1つを選択することで、エンジニアの手を借りずとも誰でも簡単にフォーム作成することができ、フォームから送信された顧客情報をステータス毎にチームで管理することができるボード画面、複数人で利用できるメール機能により、顧客獲得からコミュニケーション対応の生産性向上に貢献します。 本アプリの利用に関しては、「リソース」の「よくある質問」に掲載された「利用規約」が適用されます。必ず事前に内容をご確認ください。アプリのご利用を頂いた場合、「利用規約」にご同意頂いたものとみなされます。 more 柔軟で拡張性高いフォーム作成 お問い合わせ内容の確認 各お問い合わせの担当者や対応状況の可視化、メール対応
AI-powered skin analysis with personalized product recommendations Formulary's exclusive skin-scanning technology enables customers to conveniently scan their faces from any location and receive instant results. By pinpointing Formulary's six skin health markers—wrinkles, blemishes, eye area, pigmentation, elasticity, and hydration—the app generates immediate results and personalized product recommendations from your lineup. This offers clear insights into individual skincare needs, empowering customers to make confident purchasing decisions. Formulary's exclusive skin-scanning technology enables customers to conveniently scan their faces from any location and receive instant results. By pinpointing Formulary's six skin health markers—wrinkles, blemishes, eye area, pigmentation, elasticity, and hydration—the app generates immediate results and personalized product recommendations from your lineup. This offers clear insights into individual skincare needs, empowering customers to make confident purchasing decisions. more Easy to install, customize and use Scan face from anywhere, receive instant results Delivers personalized product and treatment recommendations Empower customers to make confident purchasing decisions
Create shoppable Instagram, TikTok, and UGC galleries. Boost desire and sales with social proof. Turn your Instagram, TikTok, UGC, and ambassador content into shoppable galleries for your online store, email campaigns, and Shop App. With Foursixty, you’ll be able to give your customers the ultimate social shopping experience that will engage, inspire, and ultimately, inspire purchase intent and increase sales. If your business uses Instagram, builds social community, or works with ambassadors, this app is for you. Turn your Instagram, TikTok, UGC, and ambassador content into shoppable galleries for your online store, email campaigns, and Shop App. With Foursixty, you’ll be able to give your customers the ultimate social shopping experience that will engage, inspire, and ultimately, inspire purchase intent and increase sales. If your business uses Instagram, builds social community, or works with ambassadors, this app is for you. more Showcase shoppable galleries in product pages, homepages, and dedicated pages Showcase your army of ambassadors and create dedicated galleries for each one Push Instagram and UGC to your email strategies and abandoned cart campaigns Collect UGC from customers and get the legal rights to feature their content Auto-schedule your Instagram posts and get in depth Instagram platform analytics
Upsell & Cross-sell easily with Bundles, Discounts, Countdowns, & Pop-ups to increase CR & AOV Convert browsers into shoppers, & hesitant customers into heavy spenders. Your customers will stay longer & spend more, boosting conversion rates, sales & AOV. FoxKit offers high-converting upsells - In-cart Upsell, Discounts, & Back-in-stock alerts. Cross-sell with Bundles, Pre-purchase offers, & Related products. Boost more sales using Countdown; Lucky Wheel; Recent Sales Noti; Pre-orders; & Pop-up to collect emails, offer discounts, & announce news; Easy set-up, no code needed! Convert browsers into shoppers, & hesitant customers into heavy spenders. Your customers will stay longer & spend more, boosting conversion rates, sales & AOV. FoxKit offers high-converting upsells - In-cart Upsell, Discounts, & Back-in-stock alerts. Cross-sell with Bundles, Pre-purchase offers, & Related products. Boost more sales using Countdown; Lucky Wheel; Recent Sales Noti; Pre-orders; & Pop-up to collect emails, offer discounts, & announce news; Easy set-up, no code needed! more Popular Upsell features: Bundles, Discounts, & In-cart Offer to boost AOV Effective Cross-sells: Free ship goal, Countdown, Lucky wheel, Back in Stock Extra tools to boost Sales: Size chart, Pre-order, Recent Sales Pop-up, etc. Insightful Analytics of conversion performance, from impressions to sales & AOV 5-star live chat support, weekly updated help docs & video tutorials
Fixed Bundles, Mix and Match Bundles, Build Your Own Box Bundle with Add Ons to boost your AOV We help brands boost AOV with Product Bundles - like Bundle Builder, Fixed Bundles, or Volume Bundles. Create mix and match product bundles or bundle builder with add ons or free Gifts. Build a box or build your own bundle with infinite variants. You also have a wide bundle template options. Seamlessly manage your product bundles inventory. Create simple bundles or easy bundles and get in-depth Analytics into each product bundle. We help brands boost AOV with Product Bundles - like Bundle Builder, Fixed Bundles, or Volume Bundles. Create mix and match product bundles or bundle builder with add ons or free Gifts. Build a box or build your own bundle with infinite variants. You also have a wide bundle template options. Seamlessly manage your product bundles inventory. Create simple bundles or easy bundles and get in-depth Analytics into each product bundle. more Mix and match or Build your own bundle for complex bundling (infinite variants) Easy Order Fulfillment along with Automated Inventory Management Volume Bundle with Quantity Breaks to upsell shoppers Fixed Bundles now supports 30 products in a Bundle!
Boost sales by showcasing the Best Sellers on your Homepage using an image Slider / Carousel Best sellrs drive the majority of a store's revenue. Increase visibility for your best seller products by automatically promoting them on your store's homepage through product sliders and caruosels. Customize product sliders to showcase one product with an enlarged product slider or several products with a compact product slider | Built-in lazy load for all product sliders leading to higher PageSpeed score | Zoom on image hover | Slider supported on Online Store 2.0 | collection sliders Best sellrs drive the majority of a store's revenue. Increase visibility for your best seller products by automatically promoting them on your store's homepage through product sliders and caruosels. Customize product sliders to showcase one product with an enlarged product slider or several products with a compact product slider | Built-in lazy load for all product sliders leading to higher PageSpeed score | Zoom on image hover | Slider supported on Online Store 2.0 | collection sliders more One click Add to Cart button to boost sales on your product slider Improve customer engagement towards your products with carousels and slideshows Customise the product sliders and carousels as per your theme and brand colors Track your product slider sales and revenue with our analytics dashboard The product sliders are mobile-optimised to ensure for the best experience
Increase your store's conversion rate by 20% and increase 27% in sales with visual recommendations AI-powered visual-based product recommendation engine that shows highly relevant result across large amount of SKUs. Increase clickthrough from your marketing emails with showing highly personalized product emails through Klaviyo integrations. Increase sales, conversion rate, clickthrough rate, and ROI. AI-powered visual-based product recommendation engine that shows highly relevant result across large amount of SKUs. Increase clickthrough from your marketing emails with showing highly personalized product emails through Klaviyo integrations. Increase sales, conversion rate, clickthrough rate, and ROI. more AI-powered product recommendations that show highly visually relevant products Style the recommendation module to your liking. Integrate with Klaviyo and send personalized recommendations in emails.
By using this app, you can show a free shipping bar on your store and also set cart value goals. By using this app, you can add a Free Shipping Bar or Promotion Bar on the top of your site header to attract visitors. Its an easy tools to create engagement among site visitors and increase conversions. The Free Shipping bar feature allows you can create goals for cart as per requirement and it will show the remaining amount in the bar as per cart total. You can setup the app easily and update the settings to set your cart goals on which you want to offer Free Shipping to users. By using this app, you can add a Free Shipping Bar or Promotion Bar on the top of your site header to attract visitors. Its an easy tools to create engagement among site visitors and increase conversions. The Free Shipping bar feature allows you can create goals for cart as per requirement and it will show the remaining amount in the bar as per cart total. You can setup the app easily and update the settings to set your cart goals on which you want to offer Free Shipping to users. more Create a freeshipping bar, hello bar, announcement bar or header bar for store Easy to customize and setup on store with lots of customization options in fsb Set a goal as well for the free shipping bar message to attract user attention Promotion bar to add promotional message for visitors of store + social proof Feature rich sticky bar
Display free shipping offers with a cart progress sticky bar to motivate customers to buy more! Motivate customers to buy more by emphasizing free shipping offers. With Free Shipping Bar, it’s easier than ever to set cart value goals and keep customers engaged and willing to spend more. The free shipping app supports multiple cart goals by country. Set it up within 5 minutes to drive more sales in your store. Keep customers engaged by showing their progress as they add products to their carts. Motivate customers to complete their purchases once they have reached the cart value goal. Motivate customers to buy more by emphasizing free shipping offers. With Free Shipping Bar, it’s easier than ever to set cart value goals and keep customers engaged and willing to spend more. The free shipping app supports multiple cart goals by country. Set it up within 5 minutes to drive more sales in your store. Keep customers engaged by showing their progress as they add products to their carts. Motivate customers to complete their purchases once they have reached the cart value goal. more Display free shipping offers through a cart progress sticky bar to increase AOV. Set multiple cart goals by country and set a unique cart goal per country. Keep customers engaged by showing their progress towards your cart goal.
Combined Listing | Variants on Collection | Product Group Automation | Color Swatch | Swatch Button Grouptify helps Shopify merchants merge related products into a single display, boosting conversions and enhancing the shopping experience. It enables managing variants as individual products with unique URLs, titles, and descriptions while maintaining a consistent display across collection pages. Improve SEO, inventory management, and analytics tracking. Customize Shopify options with buttons, dropdowns, and swatches. The Auto Group Products feature saves time by automatically combining listing Grouptify helps Shopify merchants merge related products into a single display, boosting conversions and enhancing the shopping experience. It enables managing variants as individual products with unique URLs, titles, and descriptions while maintaining a consistent display across collection pages. Improve SEO, inventory management, and analytics tracking. Customize Shopify options with buttons, dropdowns, and swatches. The Auto Group Products feature saves time by automatically combining listing more Combine product variation listings to improve conversions, experience and SEO Display variants consistently across all pages with multi-language & currency Allow to replace or customize Shopify default options. Provide a flexible option editor with various appearance styles(swatch,button..) Auto-group similar products for bulk management via CSV import/export.
Product options | Variant images | Color swatches | Variant option | Product linking GROOPIE Discover your ultimate variant option app for product customization. Add infinite product options and variant images to your product pages, empowering customers to fully customize products to their linking. From color swatches to variant Images, this product customizer provides the flexibility you need. GROOPIE Discover your ultimate variant option app for product customization. Add infinite product options and variant images to your product pages, empowering customers to fully customize products to their linking. From color swatches to variant Images, this product customizer provides the flexibility you need. more Drag-and-drop setup on product page Personal color list to Autofill Colors Optional styles | Custom Solutions for your theme
Highlight your products or events with customizable galleries that enhance your site’s visual appeal Transform your website into a visual masterpiece with our Photo Gallery App. Whether you want a lookbook, image gallery, or to let customers shop the look, make your photos shine. Photo Gallery is a powerful tool that showcases your products, boosting engagement and sales. Even if your focus isn't on selling products, you can use the gallery to showcase articles, events, or other unique content that differentiates your brand. Transform your website into a visual masterpiece with our Photo Gallery App. Whether you want a lookbook, image gallery, or to let customers shop the look, make your photos shine. Photo Gallery is a powerful tool that showcases your products, boosting engagement and sales. Even if your focus isn't on selling products, you can use the gallery to showcase articles, events, or other unique content that differentiates your brand. more Easy Integration: Add image galleries to your website with just a few clicks. Choose from various layouts to find the perfect way to showcase your images. Add captivating captions to each photo to tell its unique story. Enhance your gallery with the ability to include both images and videos. Our app ensures your image galleries look great on all devices.
Engage customers with eye-catching Announcement Bars Enhance your store’s visibility with the ultimate tool for creating stunning announcement bars. Share important updates, promotions, and special offers while keeping your customers informed and engaged. With multiple display options, you can choose a scrolling announcement bar, a simple sticky banner, or multiple rotating announcement bars to showcase different messages at once. Add clickable links to guide customers to products, deals, or key pages. Enhance your store’s visibility with the ultimate tool for creating stunning announcement bars. Share important updates, promotions, and special offers while keeping your customers informed and engaged. With multiple display options, you can choose a scrolling announcement bar, a simple sticky banner, or multiple rotating announcement bars to showcase different messages at once. Add clickable links to guide customers to products, deals, or key pages. more Show bars site-wide or on specific pages for targeted messaging. Ensure your announcement bars look great and work seamlessly on any device. Highlight discounts, free shipping offers, and seasonal sales with ease. Add sliding or fixed-position effects for dynamic visuals. Easily adjust text, colors, and styles to match your brand’s look.
Design custom support forms effortlessly – the ultimate solution for creating and managing forms. Support Forms application is designed to streamline your workflow and enhance customer engagement through dynamic and customizable forms. With an intuitive interface, rich templates, and robust analytics, it empowers users to collect, manage, and act on support requests and feedback seamlessly. Ideal for any business looking to simplify form creation, Support Forms Builder is the trusted choice for efficient and effective customer support. Support Forms application is designed to streamline your workflow and enhance customer engagement through dynamic and customizable forms. With an intuitive interface, rich templates, and robust analytics, it empowers users to collect, manage, and act on support requests and feedback seamlessly. Ideal for any business looking to simplify form creation, Support Forms Builder is the trusted choice for efficient and effective customer support. more Choose from a variety of templates to match your brand and style. No coding required! Design your forms with a user-friendly drag-and-drop builder Never miss a submission with instant email notifications. Track the performance of each form with detailed analytics.
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.