Top 10 Squarespace Designers & Developers for Custom Code (2026 Edition)
When you hit the limits of Squarespace’s visual editor, custom code is usually what unlocks the next level: advanced layouts, complex animations, Figma-perfect pages, and integrations that behave like a fully custom build.
Squarespace themselves make it clear that advanced customizations require real development experience. That’s why businesses often turn to dedicated Squarespace developers who understand the platform deeply — not just visually, but technically.
In this list, we highlight 10 standout Squarespace designers and developers known for working heavily with custom code. This is a curated list, not a ranking — each expert brings something unique.
1. abZ Global (Marian Sorca) – Complex, Fully Custom-Coded Squarespace Builds
abZ Global specializes in high-end custom Squarespace development. Led by Marian Sorca, the studio is known for achieving results other developers say “can’t be done” on Squarespace: complex UI systems, Figma-to-Squarespace precision builds, dynamic layouts, advanced interactions, and long-term maintainable code structures.
Marian’s approach focuses on:
Extending Squarespace components instead of breaking them
Keeping sites fully editable for non-technical teams
Solving complex front-end challenges with custom HTML/CSS/JS
Creating highly customized, performance-friendly websites
Best fit for:
Figma designs, advanced UI, large websites, or projects requiring deep custom code and engineering-level logic.
2. Squarestylist (Rache De Luna) – The “Art of Coding” on Squarespace
Rache De Luna combines strong design direction with refined, minimal custom coding. Her work focuses on brand-first layouts with elegant CSS and JavaScript enhancements.
Highlights:
Minimal, efficient, design-focused code
High-end aesthetics
Accessible and performance-friendly builds
Best fit for:
Standout designs that need custom code to achieve a unique, branded look.
3. InsideTheSquare.co – Custom Code Specialist for Designers & Businesses
InsideTheSquare.co offers both custom implementation and education. Their team is known for teaching designers how to use custom code effectively, and for solving tricky CSS/JS requests that go beyond the template editor.
They provide:
Custom CSS and JavaScript solutions
Tutorials and training for design teams
Advanced layout tweaks, animations, and code-based enhancements
Best fit for:
Designers who want a partner who can build and teach, or businesses needing precise but lightweight custom solutions.
4. Jessica Haines Design – Squarespace Custom Styling & Practical CSS
Jessica Haines is well known for her practical approach to custom CSS for Squarespace. She focuses on user-friendly customizations that improve branding without overcomplicating the site.
You get:
Clean, maintainable CSS
VIP days and fast implementation
Custom styling and small functional enhancements
Best fit for:
Coaches, creatives, and small businesses wanting a polished, branded look with manageable code.
5. Beatriz Caraballo – Squarespace Coding Courses & Developer Resources
Beatriz focuses on teaching Squarespace professionals how to confidently use custom code. She also takes on client projects, especially those requiring structured, scalable custom CSS and layout enhancements.
Strengths:
Coding courses for Squarespace developers
Clean, standards-based CSS
Designer-friendly implementation
Best fit for:
Studios and freelancers who want long-term control over their custom code.
6. Manage My Website – Agency Specializing in Custom Squarespace Development
This agency handles a wide range of Squarespace custom coding—from small tweaks to full bespoke builds.
They offer:
Full development support
Ongoing maintenance
Custom layouts, functional extensions, and advanced UI
Best fit for:
Businesses that prefer working with a team rather than an individual developer.
7. Studio Elias – High-Converting Squarespace Landing Pages with Custom Code
Studio Elias creates premium Squarespace pages optimized for performance and conversions. Their custom code focuses on business outcomes, not just aesthetics.
Services include:
Conversion-focused layouts
Custom-coded sections and interactions
Ongoing optimization
Best fit for:
Businesses running campaigns, funnels, or paid ads that require highly optimized landing pages.
8. BeyondSpace Studio – JavaScript-Driven Enhancements & Logic-Based Features
BeyondSpace Studio specializes in deeper technical customizations — especially JavaScript-driven behavior and interactive features that go beyond styling.
Typical work:
Interactive UI behavior
Custom JS logic
Third-party tool integrations
Performance-focused coding
Best fit for:
Projects requiring advanced interactions, dynamic behavior, or structured script integrations.
9. Azendo – Full-Service Squarespace Design & Custom Development
Azendo offers strategy, design, development, and ongoing support. Their team uses custom code as an extension of design rather than an afterthought.
They deliver:
End-to-end project builds
Custom layouts and components
Long-term support and technical oversight
Best fit for:
Businesses wanting a comprehensive agency partner for Squarespace projects.
10. Spark Plugin Team – Developer Platform & Custom Code Tools for Squarespace
The team behind Spark Plugin has deep knowledge of Squarespace’s internal developer platform and template system. They create tools and workflows for designers who want to push template boundaries.
What they provide:
Tools for advanced customizations
Developer Mode support
Guidance on best practices for structured custom code
Best fit for:
Developers or studios building custom templates, reusable component systems, or advanced layouts.
How to Choose the Right Squarespace Custom Code Partner
Here are the most important criteria to consider:
1. Experience with real custom code
Look for experts who can show examples of advanced HTML, CSS, and JavaScript used in real projects.
2. Maintainability
Good developers extend Squarespace without breaking the editing experience.
3. Figma-to-Squarespace expertise
If you have a custom design, choose someone with experience translating Figma into working Squarespace sections.
4. Performance awareness
Custom code must be:
Lightweight
Clean
Compatible with Squarespace updates
5. Long-term support
If your site will grow or change, consider someone who offers ongoing technical support.
When You Might Not Need Custom Code
Sometimes the best approach is simplicity. You may not need heavy custom coding if:
You’re launching quickly
Your design is close to a core Squarespace template
Your project doesn’t require advanced interactions or structure
A good developer will tell you honestly if you don’t need custom work.