Shopify Advanced custom css apps 2025

SAVVY | YouTube Video Gallery

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Create a stylish Youtube video gallery, carousel, grid & more.

Easy integration

Customizable displays

No coding needed

Diverse layouts

Unlimited playlists

Multiple play modes

Install App

Easy Custom CSS

$1995 / Month

6.1

8 Reviews

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Add custom CSS code to any available theme on your store Show more

Easy Custom CSS is a powerful app designed to help you effortlessly enhance the appearance of your online store without delving into backend code modifications. This user-friendly tool requires only a basic understanding of CSS, enabling you to swiftly implement changes to your store's design. With Easy Custom CSS, you can conveniently add custom CSS to any of your store's available themes, offering you greater flexibility in tailoring the aesthetic to match your brand's identity. The app features syntax highlighting and autocompletion, which together provide helpful suggestions to streamline the coding process and ensure accuracy. Whether you're looking to make minor tweaks or significant design overhauls, Easy Custom CSS empowers you to take control of your store's visual presentation with ease.

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Add css to theme

Syntax highlighting

Autocompletion

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Mega HTML/CSS/JS Code Embed

8.2

6 Reviews

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Easily add custom HTML, CSS, JS, and Liquid code to your store Show more

Mega HTML/CSS/JS Code Embed is a powerful app designed to enhance your online store with custom code integration, providing flexibility and creativity in managing your shop's appearance and functionality. It allows you to seamlessly add tracking pixels, create eye-catching animations, and implement sophisticated product filters without the need for complex modifications, making it suitable for users of all skill levels. With dedicated fields for HTML, CSS, JavaScript, and Liquid code, you can easily embed videos, style custom elements, and develop interactive features. The live preview feature within the Shopify theme editor lets you see your changes in real time, enabling instant refinement and adjustment. Whether you're looking to add a countdown timer, customize your checkout pages, or integrate third-party tools, the app offers a smooth experience with seamless integration and app embeds. Quick and easy to install with just one click, Mega HTML/CSS/JS Code Embed empowers you to enhance your store's functionality and aesthetics swiftly and efficiently.

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Live preview

Advanced filters

Interactive elements

Instant setup

Custom animations

Theme editor

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BL Custom HTML CSS JS Liquid

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Embed HTML, CSS, JS, and Liquid—no theme code editing needed. Show more

BL Custom HTML CSS JS Liquid is a versatile app designed to give you complete control over your store's design and functionality by enabling the integration of custom HTML, CSS, JavaScript, and Liquid code. This powerful tool allows users to modify their store’s appearance and add unique features, enhancing the overall shopping experience. Whether you want to apply code that runs globally across all pages or focus on specific sections for a more custom look, this app has you covered. Ideal for embedding custom tags, snippets, and specialized elements, it ensures a seamless and dynamic web presence. The standout feature is its capability to make modifications without altering core theme files, ensuring that your store remains secure and easy to update. BL Custom HTML CSS JS Liquid is essential for anyone looking to create a distinct and personalized online shopping environment.

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Embed custom code

Global code application

Targeted code snippets

Custom tag addition

Modify store appearance

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F: HTML/CSS : JS Liquid Code

$19 / Month

8.2

4 Reviews

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Theme scheduler or insert custom CSS, JS, to theme sections Show more

F: HTML/CSS: JS Liquid Code is a versatile app designed to simplify theme customization for store merchants. With this app, users can effortlessly update their theme or insert custom HTML, CSS, and JavaScript code into theme sections without directly editing liquid code files, reducing the risk of errors. Whether you want to change a button's color, add a top bar, or integrate a script, the app enables swift modifications through an intuitive theme sections block extension. The included Theme Updater ensures your customizations remain intact and compatible with theme updates. Additionally, the app supports the easy insertion of essential tools like Google Analytics, Google Tag Manager, Facebook Pixel, and meta tag verification codes to enhance site functionality. This app offers a streamlined, user-friendly solution for anyone looking to personalize their online store's appearance and capabilities.

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Analytics integration

Theme scheduling

Insert custom css

Insert custom js

Html code snippets

Add css sections

Install App

Inline ‑ Critical CSS

$10 / Month

(3.4/5)

11 Reviews

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Speed up your online store by generating critical css Show more

Inline - Critical CSS is an app designed to enhance webpage loading speeds by directly embedding essential styling into the document's `` element. This approach eliminates the need for additional server requests for stylesheets and reduces the time users wait for styles to render. Non-critical, below-the-fold styling is fetched in the background, ensuring the main content is quickly viewable, thereby avoiding render-blocking issues. Faster page load times significantly enhance user experience, improve conversion rates, and elevate search engine rankings, particularly benefiting first-time visitors to the site. By prioritizing critical CSS, this app optimizes performance, providing a seamless browsing experience while contributing to better SEO outcomes.

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Eliminate render-blocking

Faster load times

Improve google ranking

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GeoStyle‑ Country‑Specific CSS

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Change CSS styling based on country Show more

GeoStyle - Country-Specific CSS is a powerful app designed to enhance the online shopping experience by enabling merchants to tailor their store's appearance according to the visitor's geographical location. Ideal for businesses operating in multiple regions, this app allows you to selectively display or hide elements on your website, ensuring that your content is always relevant and compliant with local regulations and cultural norms. With GeoStyle, you can effortlessly set different CSS rules for various countries or groups of countries, creating a more personalized shopping atmosphere for your global audience. The app is designed to manage multiple style rules seamlessly without affecting your site's performance or its Cumulative Layout Shift, thanks to its Liquid-only rendering approach. Whether you're looking to enhance specific content for better engagement or hide elements to maintain regulatory compliance, GeoStyle is a versatile solution for achieving country-specific customization.

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No performance impact

Country-specific css

Customize appearance

Hide elements selectively

Display compliance

Content relevance

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EZ Custom HTML

$4.99 / Month

8.2

3 Reviews

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Easily add custom HTML, custom Javascript, and custom CSS Show more

EZ Custom HTML is a user-friendly app designed to simplify the process of adding custom HTML, CSS, or JavaScript to Shopify pages without the need for programming knowledge. This app serves as an App Block within Shopify's Theme Editor, allowing users to effortlessly drag and drop to place their custom code exactly where they want it. It eliminates the headache of dealing with theme liquid files, making customization accessible to all Shopify store owners. With this app, even those without JavaScript skills can enhance their store's functionality and appearance by incorporating custom scripts and styling. Users can expect first-class support, with responses typically within 24 hours, adding to the app's convenience and reliability. Whether you need to tweak the aesthetics or introduce new features, EZ Custom HTML streamlines the customization process on your Shopify store.

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Add custom html

Add custom css

Add custom javascript

Drag-and-drop functionality

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Easy HTML, CSS Content Embed

$19.99 / Month

8.2

5 Reviews

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Embed rich content of your choice easily on your store. Show more

The HTML, CSS, Rich Content Embed app empowers you to inject creativity and customization into your Shopify store, enhancing its visual appeal and functionality. Utilizing the flexibility of HTML, CSS, and other rich content formats, the app offers endless possibilities for displaying custom content across various parts of your store. With the introduction of Shopify's app blocks, it is now even easier for merchants and developers to personalize their storefronts. This app leverages these advancements, providing a seamless way to configure and showcase diverse content through both the app and theme editor. The user-friendly editor simplifies modifications, while the app's cutting-edge infrastructure ensures minimal load times. Designed with the latest theme architecture in mind, this tool is optimized for both contemporary design and performance, enhancing user experience and store efficiency.

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Embed rich content

Custom content display

Html, css support

User-friendly editor

Theme editor configuration

Minimizes load time

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MinifyMe ‑ File Optimizer

(2.7/5)

17 Reviews

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Minify CSS, JavaScript & Liquid files to speed up your store Show more

MinifyMe - File Optimizer is an intuitive app designed to enhance your store's performance by efficiently optimizing theme assets. With no developer experience required, users can effortlessly reduce the size of JavaScript, Liquid, and CSS files, leading to improved site speed and performance. The app simplifies file optimization with a user-friendly interface, allowing anyone to minify their files with just the press of a button. One of its standout features is the ability to easily revert minified files, enabling users to make necessary edits or fixes before reapplying the optimization. MinifyMe ensures a seamless and accessible experience for users aiming to boost their site's efficiency. Whether you're a seasoned professional or a novice, achieving a faster, more responsive store has never been easier.

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Shopify admin integration

Improve site speed

Minify css files

Minify javascript files

Minify liquid files

Easy file revert

Install App

Designy CSS Visual Editor

$7.95 / Month

8.2

2 Reviews

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Customize, fix and animate any existing or new shop element Show more

Designy Visual Editor is a powerful tool for customizing the look and feel of your online store with unparalleled precision. It allows you to modify various design elements, including backgrounds, text sizes, colors, fonts, and more, giving you the flexibility to create a unique shopping experience. The app enables you to animate elements with both appearance and ongoing animations, adding dynamic flair to your site. Designy also lets you add fully customizable app blocks such as buttons, headers, images, and videos effortlessly. You can visually tweak the CSS of any existing element without needing any coding knowledge, streamlining your design process. Moreover, the app supports tailored modifications for desktop, mobile, and hover states, enhancing its versatility. You can preview your edits across different device views, ensuring a consistent and optimized appearance for all user experiences.

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Countdown timers

Video embedding

Adjust margins

Visual css editor

Modify backgrounds

Change text sizes

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Appy: Sales Announcement Bar

$4.99 / Month

8.2

10 Reviews

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Capture emails, free backgrounds, timers & advanced styling Show more

Appy: Sales Announcement Bar is an intuitive tool designed to enhance your connection with customers by effectively promoting sales and capturing email leads. With no development time required, you can swiftly create custom banners in under 30 seconds and display them site-wide, tailoring them with free custom CSS to seamlessly fit your brand aesthetic. The app prepares you for high sales seasons, allowing you to push promotions and offers effortlessly. Its smart features include auto-scheduling banners to match your timeline, providing discounts to drive email signups, and incorporating countdown timers to create urgency around your offers. The advanced display rules enable you to target specific audiences by showing particular banners on certain pages, ensuring your message hits the mark every time. Enjoy these powerful features, which are typically paid, at no cost, all aimed at boosting your sales and enhancing customer interaction.

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Countdown timers

Custom css

Email capture

Advanced targeting

Free backgrounds

Auto-schedule banners

Install App

CodeUp ‑ Add Custom Code

(3/5)

2 Reviews

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Easily Insert Custom Header & Footer Code to Your Store Show more

CodeUp - Add Custom Code is a versatile application designed to enhance your website's functionality by effortlessly integrating various codes into your site. With CodeUp, you can easily add essential codes such as Google Site Verification, Facebook Domain Verification, Google Analytics, and Facebook Pixel, as well as third-party scripts and live chat scripts. It also allows for the inclusion of custom CSS, empowering you to personalize your site's appearance and performance. The app provides a user-friendly interface, making it simple to customize and manage your code placements, whether in the head or body section. CodeUp offers intuitive features like simple code customization and page-wise code loading, ensuring an efficient and streamlined experience. Enhance your website's capabilities with this powerful tool and make your web presence more impactful and professional.

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Easy to use

Simple code customization

Load code pagewise

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Custom Code Inserter SGTLab

7.7

4 Reviews

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Easily insert custom code and CSS into your store Show more

Custom Code Inserter SGTLab is a powerful yet user-friendly application designed specifically for Shopify users looking to personalize their online stores effortlessly. This innovative app allows you to seamlessly add and manage custom code across various sections of your Shopify theme, including headers and footers, without any coding expertise required. With a click, users can revert to the original code, ensuring that any changes made are fully reversible, protecting the integrity of your theme. The app supports a wide range of scripts, such as CSS, JavaScript, and HTML, offering comprehensive customization options that cater to various design and functionality needs. Designed with ease of use in mind, Custom Code Inserter SGTLab ensures that users can navigate the configuration process smoothly, making customizations accessible to everyone. Transform your Shopify store into a personalized shopping experience with this efficient tool.

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Easy configuration

Insert custom code

Revert original code

Support various scripts

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AI Speed Booster

$14-$29 / Month

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Boost store performance with automated optimizations for faster load times. Show more

AI Speed Booster is designed to elevate your store's performance and enrich user experiences by employing sophisticated optimization tools. The app streamlines technical enhancements and efficiently automates processes such as CSS and JavaScript minification, Cumulative Layout Shift (CLS) adjustments, lazy loading of images, and script deferrals. These features collectively aim to boost page speed and enhance SEO, making the app an ideal solution for merchants who prioritize faster loading times and seek to decrease bounce rates. By simplifying complex optimization tasks, AI Speed Booster ensures that your store operates smoothly and efficiently, which can lead to improved sales outcomes. It's a perfect tool for merchants aiming to optimize their online presence without delving into intricate technical details.

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Lazy loading

Automated css/js minification

Cls adjustments

Script deferral

Link preloading

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Script Inserter

$9.99 / Month

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Easily insert Scripts, Custom Javascript and CSS in your store Show more

Script Inserter is a convenient application designed to simplify the process of embedding scripts in your online store. With this tool, there's no need to meddle with your shop's theme; simply copy and paste your code snippets into Script Inserter, and it will handle the rest, ensuring seamless integration. Whether you wish to implement the scripts on your store's web front, order status page, or both, Script Inserter gives you that flexibility. The app ensures that your scripts remain intact and functional even when you decide to switch your store's theme. It supports an unlimited number of JavaScript and CSS scripts, enabling enhanced customization. Users can also benefit from fast response times and reliable service, all while having the peace of mind that their information is kept private.

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Easily insert scripts

Supports javascript and css

Copy-paste code

Load on web front

Load on order status page

Theme change compatibility

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B&S ‑ Add Custom Code

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Seamlessly integrate custom code for enhanced online store functionality. Show more

B&S ‑ Add Custom Code is a powerful app designed to elevate your online store by enabling the seamless embedding of custom code. With this app, you can easily integrate essential codes for site verification from Google, domain verification from Facebook, and set up Google Analytics and Facebook Pixel to enhance your store’s analytics capabilities. The app allows you to incorporate custom CSS styles into both the head and body sections of your site, enhancing your store's design and functionality. Its intuitive interface ensures that users of all skill levels can manage these tasks with ease, eliminating the need for complicated modifications. The app efficiently handles multiple codes simultaneously, allowing you to add HTML, CSS, Liquid, JQuery, and Javascript code to your store. Whether you need to modify the body or header sections, B&S ‑ Add Custom Code provides a smooth and user-friendly experience tailored to meet your customization needs.

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Custom code integration

Site verification tools

Implement analytics tags

Custom css styles

Manage multiple codes

Code in header

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Acumatica / MYOB Advanced Automation by MyIntegrator

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Automate and streamline BigCommerce integration with Acumatica/MYOB Advanced. Show more

The Acumatica / MYOB Advanced Automation by MyIntegrator is a robust solution designed to seamlessly integrate BigCommerce with Acumatica or MYOB Advanced systems. This integration provides businesses with comprehensive control over orders, inventory, products, customers, and freight, streamlining operations and enhancing efficiency. Recognized for its expertise in connecting accounting software with e-commerce platforms, MyIntegrator simplifies complex workflows, allowing businesses to focus on their core activities. The integration process is straightforward and involves just three simple steps, making it accessible and user-friendly for businesses of all sizes. Additionally, B2B modules are available to expand functionality, including pricing updates based on specific endpoints like orders, inventory, and shipping. With transparent pricing that includes a one-time setup fee and annual service fees, MyIntegrator offers a cost-effective solution tailored to meet the integration needs of modern businesses.

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Manages orders

Automates integration

Streamlines workflows

Controls inventory

Handles freight

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Catalys Checkout

$19 / Month

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Optimise Cash on Delivery (COD) with custom fees and advanced Show more

Catalys Checkout is an innovative app designed to optimize your Cash on Delivery (COD) payment method with ease and efficiency. The app allows businesses to add a customizable COD fee, either as a fixed amount or a percentage, to offset additional costs and promote prepaid orders. It offers the flexibility to modify COD availability at checkout based on various dynamic conditions, such as the order total or specific zip codes, ensuring a tailored shopping experience. Catalys Checkout also provides the capability to discreetly hide the COD option for customers or locations susceptible to fraud. With its intuitive interface and comprehensive step-by-step guides, configuring your COD options is a seamless process. Embrace strategic management of your COD offerings to enhance profitability and reduce risk.

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Fraud prevention

Custom cod fees

Dynamic cod conditions

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PixPro Image Uploader

$9.9-$39.9 / Month

9.1

1 Reviews

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Scale Custom Photo Products With Advanced Image Uploading. Show more

PixPro Image Uploader is a cutting-edge application designed specifically for Shopify users seeking to enhance their custom product offerings. Seamlessly integrated into your product page, PixPro allows customers to upload images with social media-style editing features, including filters, cropping, and fine-tuning for a personalized touch. One of its standout features is the ability to lock the 'Add to Cart' button until an image is uploaded, ensuring a complete and satisfied order every time. The app also offers customizable upload buttons, making it easier for businesses to blend this tool with their existing website design. With added functionalities like one-click CSV export and image download, handling orders has never been simpler. PixPro's dynamic image selection button maintains functionality even with a sticky Add to Cart bar, elevating the overall user experience and streamlining the purchase process.

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Sticky add to cart

Social media-style editing

Customizable upload buttons

Image upload locking

One-click csv export

Install App

Shopify Advanced custom css apps

Related Categories

Price

Based on reviews

Showing 1 to 20 of 1 Apps

SAVVY | YouTube Video Gallery

Easy Custom CSS

Mega HTML/CSS/JS Code Embed

BL Custom HTML CSS JS Liquid

F: HTML/CSS : JS Liquid Code

Inline ‑ Critical CSS

GeoStyle‑ Country‑Specific CSS

EZ Custom HTML

Easy HTML, CSS Content Embed

MinifyMe ‑ File Optimizer

Designy CSS Visual Editor

Appy: Sales Announcement Bar

CodeUp ‑ Add Custom Code

Custom Code Inserter SGTLab

AI Speed Booster

Script Inserter

B&S ‑ Add Custom Code

Acumatica / MYOB Advanced Automation by MyIntegrator

Catalys Checkout

PixPro Image Uploader