Rated by 700+ brands
4.9
Magento extension development built to Marketplace standard
Whether you need one custom module or a full integration layer, the most certified Adobe Commerce team builds what off-the-shelf extensions do not cover.
Trusted by leading brands worldwide
Trusted by leading brands worldwide
The team behind your next extension
894+
Adobe Commerce certifications
2,100+
eCommerce projects delivered
600+
engineers and specialists in-house
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When the Marketplace does not have your extension
Thousands of extensions exist, and none of them match your requirement. That gap is what extension development is for.
The feature no vendor sells
Your requirement is specific to how you sell, so no off-the-shelf module covers it. We design and build the extension around that exact flow.
Extensions that clash
Two modules overwrite the same behavior and checkout breaks after every update. We isolate the conflict and rebuild the logic cleanly.
Upgrades keep breaking things
Every Magento upgrade turns into a week of patching third-party code. Extensions built to Magento coding standards survive new versions.
Why merchants trust our extension work
Marketplace-grade code
Every module comes with tests and documentation, and follows the same structural bar Adobe sets for Commerce Marketplace listings.
Platform depth below the module
We work below the extension layer too, in checkout internals and indexers, so modules are built with full knowledge of what Magento does underneath.
Fixed scope, fixed quote
An extension is a bounded piece of work. You get a scoped estimate before we start, and the price holds through delivery.
894+ certifications behind the code
Code written and peer-reviewed by a team holding 894+ Adobe Commerce certifications, more than any other agency worldwide.
Proactive support and growth
Ongoing monitoring and issue fixing is a given. We go further by identifying and prioritizing revenue opportunities to keep your Magento store growing.
Innovators in Magento
We know Magento inside out and build tools like Satoshi for Hyvä, Hyvä Swift UX design system, and ReadyMage hosting to improve speed, stability, and development workflows.
What our extension development services cover
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Extension builds we have published
Three extension builds documented in public posts, so you can read the scope and the approach before you brief us. We build client extensions the same way.
Ledyer B2B payment module
We built and publicly documented the Ledyer payment module for Magento and Adobe Commerce stores, connecting Ledyer's B2B payment service to standard Magento checkout.
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Navision ERP integration extension
Our published build log shows how we connected Microsoft Dynamics NAV to Magento through a custom integration extension, written up for other teams to learn from.
ScandiPWA extensions and Mosaic.js
We run ScandiPWA and its extension marketplace and created Mosaic.js, the plugin mechanism that brought extensions to React storefronts.
How we build a Magento extension
Extension projects are small enough to scope precisely and big enough to break things when rushed. The process below keeps every stage predictable, and you see each one as it happens.
Requirement and scoping call
We map what the extension must do and which existing modules it has to coexist with. You leave with a fixed quote and a delivery date.
Technical design
A short design doc fixes the approach: data model, events, admin settings, and upgrade strategy. You approve it before a line of code is written.
Build and code review
Development runs in your repository with peer review on every merge. You can watch progress commit by commit, and ask questions at any point.
Testing on your stack
The extension is tested against your store's data and installed modules in staging, including the upgrade path, before anything touches production.
Release and aftercare
Release goes out behind a feature flag where possible. We monitor the first orders and stay available for the next Magento release.
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What merchants say about working with us
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Describe the extension you need and get a fixed quote
One scoping call fixes the price and the delivery date. The build starts as soon as you approve both.
Fixed quote
Upgrade-safe code
You own the code
Common questions about Magento extension development
What is Magento extension development?
Magento extension development is building add-on modules that give a Magento or Adobe Commerce store functionality its core does not include, such as payment integrations or bespoke admin tools. Extensions are packaged so they install and upgrade cleanly without touching core code, which keeps the store safe to maintain.
How much does Magento extension development cost?
A small module with no third-party dependencies is days of work, while a payment or ERP integration with certification and testing can run to weeks. Every quote is fixed after the scoping call, so the number you approve is the number invoiced.
Will the extension survive Magento upgrades?
That is the point of building to standard. We use Magento's plugin and event mechanisms and avoid core rewrites, so platform updates do not overwrite the module. When an upgrade does change an API the extension depends on, patching it is a small, scoped task.
Do you build extensions for ScandiPWA and Hyvä?
Yes. We created ScandiPWA and Mosaic.js, its plugin mechanism, so React storefront extensions are daily work for us. We also build Hyvä-compatible modules and adapt existing ones for it, since most stock extensions still assume the default Luma frontend.
Should we buy an extension or build a custom one?
Buy when a maintained module matches your requirement, build when nothing on the market reflects how your business works. A purchased extension that needs heavy modification usually costs more over its life than a custom module, because vendor updates risk overwriting your changes. For work beyond a single module, see our custom Magento development service.
How long does it take to build an extension?
Can you fix or extend a third-party extension?
Yes. We customize purchased modules while keeping our changes clear of the vendor's files, and we resolve conflicts where two modules collide on the same logic. If the vendor's code is not worth salvaging, we quote a clean rebuild so you can compare.
Who owns the extension code?
You do. Extensions we build for you are delivered into your repository under a one-time fee, documented so any Magento developer can maintain them. Open-source contributions to ScandiPWA stay open source, and we tell you which is which before work starts.
Tell us which extension your store needs
Define the path toward 300–500% ROI
Describe the functionality in a couple of sentences. Our team reads every brief and comes back with questions or a scoped quote.
Prefer to talk now? Book a call straight away, or email us at: [email protected]
Let's build something great together
Planning a new store, expanding to global markets, or looking to adopt latest technology? Reach out to us, and let's make it happen.
