We build clean, upgrade-safe, and high-performance Magento extensions — purpose-built for your business workflows, fully compliant with Adobe Commerce coding standards.
Custom Magento 2 extension development from scratch PWA & GraphQL-ready extensions for headless commerceCompatible with Adobe Commerce Cloud & On-PremWhat does your store need built? Let’s talk.
Build exactly what your store needs — from scratch, with clean architecture.
Best for: Stores needing unique business logic not available off-the-shelf
Connect your Magento store to the systems your business runs on.
Best for: Enterprises connecting Magento to existing tech stacks & workflows
Already have extensions? We make them work better, faster, and reliably.
Best for: Teams managing legacy extensions or preparing for version upgrades
Custom Module Development
Build exactly what your store needs — from scratch, with clean architecture.
Connect your Magento store to the systems your business runs on.
Already have extensions? We make them work better, faster, and reliably.
Across 300+ projects, we’ve developed custom modules that solve real operational
and commerce challenges. Here’s a snapshot.
Why leading brands choose Growisto as their Magento support agency over generic support providers
| Growisto | Typical Magento Agencies |
|---|---|
 Magento Coding Standards – AlwaysEvery extension follows Adobe Commerce best practices, making upgrades smooth and code maintainable long-term. |
 Varying Code StandardsNot all agencies prioritise coding standards, which can make future upgrades and maintenance more difficult. |
Upgrade-Safe ArchitectureExtensions are built as independent modules – decoupled from core, testable, and easy to update. |
Tightly Coupled CodeExtensions that are not architecturally decoupled can create complications when upgrading Magento versions. |
PWA & GraphQL-ReadyWe build extensions compatible with headless and PWA architectures – not just traditional Magento themes. |
Theme-Dependent ExtensionsExtensions built primarily for traditional themes may not be compatible with modern headless or PWA setups. |
Full QA & Compatibility TestingEvery extension is tested for conflicts, performance impact, and compatibility before deployment. |
Limited Testing ScopeTesting processes vary across agencies and may not cover compatibility with your full module stack. |
Complete Documentation & HandoffYou receive full technical documentation so your team can manage, update, or extend the module independently. |
Minimal DocumentationPost-delivery documentation is not always standard practice, making future changes harder to manage. |
Long-Term PartnershipOngoing support, version upgrades, and feature enhancements are part of how we work – not an afterthought. |
Project-Scoped EngagementMany agencies focus on delivery alone, with limited support available after the project concludes. |
A leading consumer finance startup needed a plug-and-play BNPL extension that would let D2C brands onboard and go live within minutes — while meeting all payment platform security requirements.
Results
90%
Reduction in Brand Onboarding Time
PWA
Fully Supported via GraphQL
Created a BNPL extension in Adobe Commerce adhering strictly to Adobe Commerce coding standards
Implemented signature hashing for secure verification of all interactions between the client and Adobe Commerce
Made the extension fully configurable for both brands and the client
Added express checkout on EMI directly from the Product Detail Page
Built full GraphQL and PWA support
A smart and energy-efficient consumer electronics brand needed a cutting-edge e-commerce platform that was robust, scalable, and flexible to provide seamless experience to both end users and operations team, with advanced analytics integration.
Results
+177%
Conversion Rate Growth
+36%
AOV Increase
+58%
YoY Revenue Growth
Built their ecommerce platform 4 years prior through an 8-year long-term partnership, then optimized it for conversion as their dedicated technology partner
Executed comprehensive CRO program covering the entire customer journey—from Add to Cart and Checkout Conversion to Trust & Confidence, Analytics & Data, Mobile Experience, Cart Recovery, and Operations
Achieved 100% increase in Page Speed scores and 100% automation for product feeds, reports, and customer communication
A leading US manufacturer of safety signs and labels needed to revamp their existing ShopSite website to a more user and conversion-friendly design with scalable architecture using the latest technology stack.
Results
+25%
Increase in Conversion Rate
ZERO
Downtime Migration
90
Desktop Page Speed Insight Score
Developed decoupled system with Magento backend and ReactJS frontend for optimal performance and user experience
Implemented PWA (Progressive Web App) to significantly reduce load time and improve mobile experience
Seamlessly migrated product catalog, customer data, and SEO status with zero business disruption
Enhanced platform with multiple payment gateways, custom sign builder, and advanced features—results at every stage of the customer journey
Tyresnmore, a leading online tyre retailer, needed systematic conversion optimization to improve their user journey and checkout experience.
Results
+53%
First 2 years
+120%
Annual revenue
+17%
International markets
Conducted data-driven discovery by analyzing GA4 data to identify gaps in user-to-cart-addition funnel and cart/checkout journey issues
Executed comprehensive CRO roadmap covering multiple initiatives including product discovery, cart optimization, checkout experience, performance, and analytics
Implemented systematic methodology: Data collection → Insight & Hypothesis → Roadmap of conversion growth → Implementation → Data analysis & iteration → Conversion Growth
Ex-Vice President, Justrite (US)
“Growisto’s highly experienced technical team managed our website for three years. They helped us successfully re-platform our existing online business with no cut-over downtime. Their team allowed us to effectively migrate our website from an older CMS system into the Magento 2.3 and upgraded 2.4 environments, maintaining tight integrations with existing critical business systems along the way. Their team focused on site performance score improvements as well as technical upgrades working closely with our Ecommerce team. We thank them for their hard work and support.”
Chief Growth Officer, Tyresnmore
“What I appreciate most about working with Growisto is the depth and rigour they bring to every audit, be it CRO, TnM’s technical infra/performance, GA4 tracking, or UI/UX. As a data geek myself, I really appreciated the metric-driven plan and execution, consistently focused on improving conversions. The attention to quality in both the analysis and follow-through gives us confidence as a partner.”
Founding Member & Chief Business Officer, Atomberg Technologies
“We’re thrilled with Growisto’s website development capabilities. Growisto conducted an extensive analysis to recommend a tech stack considering our long term and diverse needs. The new site developed by Growisto performs flawlessly, enhancing the user experience. Load times have significantly improved, and navigation is seamless.”
AGM - Ecommerce, Kama Ayurveda
“The Growsito team has taken the initiative to solve problems and has continued to solve them with maturity and integrity. Since we began working together, the performance of our website has also significantly improved. The continuous maintenance assistance has been excellent, with prompt reaction times and proactive problem-solving, which has strengthened the team and fostered a true partnership. Growisto has been a wonderful experience for us.”
Associate Director - Engineering, Design Cafe
“Growisto team has been instrumental in developing the custom middleware solution for integrating multiple systems used by our sales, operations, marketing and production teams. They went above and beyond to meet the targeted deadlines and ensured to deliver a quality product. It has been a really great partnership with Growisto which we hope to continue for a long period of time.”
The terms are used interchangeably, but technically a module is a self-contained unit of code that adds or modifies functionality in Magento, while an extension is a packaged module (or set of modules) distributed for installation. When we build custom Magento extension development solutions, we follow Magento's module architecture — ensuring clean, conflict-free code that integrates naturally with your store.
It depends on complexity. A simple module — such as a custom admin notification or a checkout field modification — can take 1–2 weeks. More complex extensions involving third-party API integrations, payment gateways, or multi-step business logic typically take 4–8 weeks. We provide a clear timeline estimate after a scoping call.
The cost of Magento 2 extension development depends on the scope, complexity, and integrations involved. Simple modules start at a lower investment; enterprise-grade extensions with complex business logic and integrations require a larger budget. We provide detailed, transparent quotes after understanding your requirements — no hidden fees.
Avoiding conflicts is a core part of how we build. We follow Magento's dependency declaration system, avoid core file overrides, and conduct compatibility testing against your existing module stack before deployment. If you already have conflicting extensions, we can audit and resolve them as well.
Yes. Our extensions are developed to be compatible with both Adobe Commerce (Magento Open Source) and Adobe Commerce Cloud. We follow Adobe's extension quality guidelines and ensure Cloud-specific requirements such as read-only filesystem compatibility are addressed.
Yes. We build extensions with GraphQL support, making them compatible with PWA Studio, Vue Storefront, Hyvä, and other headless frontends.
Absolutely. We handle third-party extension conflict resolution, performance refactoring, compatibility upgrades for new Magento versions, and bug fixing on existing modules — whether they were built by us or another agency.
Yes. Every extension we deliver includes full technical documentation. We also offer ongoing support and maintenance packages for bug fixes, version upgrades, and feature enhancements after launch.
Yes. We build extensions that follow Adobe's Extension Quality Program (EQP) standards, including the documentation and review process required for Marketplace submission.
Get in touch with our team. We’d love to hear from you and discuss how we can help your business grow.
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