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I will customize big cartel code using advanced html css js and custom theme apis
jane
About this gig
WELCOME TO MY GIG
Big Cartel is great for artists and independent brands, but default themes quickly limit your layout, product displays, and user experience. I write clean, custom HTML, CSS, JavaScript, and Liquid code to turn your simple store into a high-converting, fully customized shopping experience.
Technical Services Offered:
Custom Theme & Front-End Code:
- Bespoke custom theme builds & layout overhauls from Figma / Adobe XD
- Dynamic custom product page layouts & image galleries
- Custom sliding cart drawers, announcement bars, & custom banners
- Mobile responsiveness fixes & advanced CSS/JS animation tweaks
Advanced Functionality & APIs:
- Big Cartel JavaScript API integrations (dynamic cart, inventory logic)
- Custom fonts, newsletter embeds, & third-party app integration
- Custom code fixes for existing theme templates
Why Choose Me?
- Big Cartel Specialist: Deep knowledge of platform limits & possibilities
- Zero Downtime: Changes are previewed & tested safely before publishing
- Clean Code: Ultra-fast page load speed & fully responsive across devices
NOTE: Custom theme coding varies by scope. Please contact me before ordering to discuss your project!
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know jane
jane
GoHighLevel API Odoo ERP eCommerce Developer
- FromGermany
- Member sinceMay 2026
- Avg. response time1 hour
Languages
English, German, Italian, Spanish, French
I'm Jane a developer specializing in GoHighLevel, Odoo ERP, BigCommerce, and Big Cartel custom development. I build private apps, API integrations, webhooks, custom modules, backend workflows, and advanced theme customizations using HTML, CSS, JavaScript, Handlebars, and platform APIs. Whether you need automation, custom functionality, ERP customization, or scalable eCommerce solutions, I deliver clean, secure, and reliable implementations that improve performance and streamline business operations.
Other Website Development Services I Offer
FAQ
Will I lose my custom code changes if I switch or update my Big Cartel theme?
Standard theme switches override custom HTML/Liquid template files. I write modular CSS/JS scripts and place persistent elements in your store’s Integration Code section ensuring your custom features and styling survive survive future layout updates safely.
Can you customize the Big Cartel checkout page using custom code?
Big Cartel locks down its checkout page for security and PCI compliance, so direct HTML/CSS changes there are restricted. However, I can build custom cart drawers, slide-outs, dynamic upsells, and pre-checkout validation logic on your storefront before buyers reach checkout!
Can you build custom features using the Big Cartel JavaScript API?
Yes! I use the Big Cartel JS API and Liquid tags to build dynamic product variant selectors, live cart counters, interactive image galleries, side-drawer carts, and custom layout features that default free/paid templates don't support.
