Plugin & Extension Development
Plugin & Extension Development Services
Six platforms, one team. WordPress, Shopify, WooCommerce, Magento, Chrome and developer tools. We build plugins, apps and extensions coded to each platform's own standards, engineered to clear marketplace review and stay compatible long after launch, by WebNX Global Services' team since 2008.
- 6 Platforms
- Marketplace Ready
- US · UK · Canada
- You Own The Code
Plugin & Extension Development
Six specialized plugin and extension services
One team, one invoice. Whether it's a WordPress plugin, a Shopify app or a VS Code extension, we build to that platform's own standards, not a generic template stretched across all of them.
WordPress Plugin Development
Custom WordPress plugins that add exactly the functionality your site needs, without dragging in the extra weight of features you'll never actually use.
Learn moreShopify App Development
Public and private Shopify apps that extend your storefront, admin and checkout flow, built on Shopify's current APIs and ready for the App Store or internal rollout.
Learn moreWooCommerce Plugin Development
Custom WooCommerce extensions for payment gateways, shipping methods, product types and checkout flows, coded to WooCommerce's own standards.
Learn moreMagento Extension Development
Magento 2 extensions that add new functionality, integrate third-party services or adjust core behavior, built to Marketplace standards from the start.
Learn moreChrome Extension Development
Browser extensions on Manifest V3 that automate tasks, surface your data right in the browser and ship to the Chrome Web Store, working across Chrome, Edge and Brave.
Learn moreVS Code / Figma Plugin Development
Developer and designer tools that live inside VS Code and Figma, automating repetitive workflows and keeping design and code moving in sync.
Learn moreWhat we deliver
Full-lifecycle plugin development, nothing outsourced
Every capability on this page lives in-house. We don't subcontract builds to other agencies or vanish after submission. One team handles the extension from architecture through marketplace listing to long-term compatibility, and you always have one point of contact for all of it.
Start a conversation- WordPress plugin development
- Shopify public & private apps
- WooCommerce extension development
- Magento 2 extension development
- Chrome & Edge extension development
- VS Code extension development
- Figma plugin development
- Third-party API & webhook integration
- Security review & hardening
- Marketplace submission & review
- Performance & compatibility testing
- Ongoing maintenance & updates
Built with proven tools
Technologies across all six platforms
We match the stack to the platform, not the other way round. These are the tools we rely on across our plugin and extension practice.
- PHP
- WordPress API
- WooCommerce
- Magento 2
- Shopify API
- Node.js
- React
- TypeScript
- JavaScript
- Polaris
- REST APIs
- GraphQL
- Chrome Extensions
- Manifest V3
- VS Code API
- Figma API
- MySQL
- jQuery
- Webpack
- Git
How we work
Our plugin & extension development process
Seven stages, each with a visible output you can review and approve before the next one begins. No black box between kickoff and launch.
- 01
Discovery
We map the platform, the gap in functionality, and the extension point that gives the cleanest path to building it.
- 02
Strategy
Architecture, API approach, marketplace requirements and timeline agreed in writing before a single screen gets built.
- 03
Design
UI reviewed and signed off before development starts, admin screens, settings pages and every surface the user actually touches.
- 04
Build
Clean, documented code built to the platform's own coding standards, with a working demo at every milestone along the way.
- 05
QA & Testing
Cross-version, cross-browser and edge-case testing completed before anything goes to submission or deployment.
- 06
Launch
Marketplace submission handled end to end, or a private deployment straight into your own environment.
- 07
Support
Ongoing updates that keep the build compatible as the platform ships new major versions around it.
Why choose us
A plugin team that thinks about the platform
A plugin that works today can break the moment a platform pushes a major update. We build for long-term compatibility and review standards from the start, not just to get something working right now.
Talk to us-
Built to platform standards, not around them
Every plugin, app or extension is coded to the platform's own review and coding standards, so it clears marketplace review and stays stable through updates.
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Security by default, not an afterthought
Input sanitization, output escaping, nonce verification and capability checks are part of every build from the first commit, not a scramble before submission.
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Clean integration with the tools you already run
Extensions connect to your CRM, ERP, payment systems and third-party APIs so data flows on its own instead of getting re-entered by hand.
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Performance that doesn't slow the host site down
Poorly written plugins are the single biggest cause of slow WordPress and WooCommerce sites. We write lean code that never adds to that problem.
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Marketplace-ready from the first commit
We build with Shopify, WordPress and Magento review guidelines in mind from day one, so submission is a formality, not a last-minute scramble.
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You own the code, outright
Full IP assignment on every contract. The plugin, app or extension belongs to you from the start, with no licensing fees tacked onto your own product.
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Working hours that actually overlap yours
Real daily overlap with US, UK and Canada time zones, so reviews and decisions land inside your working day instead of waiting on the next one.
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Compatibility that lasts past launch
We keep your extension updated as platforms ship new versions, so a WordPress major update doesn't break your site while your team is asleep.
Questions, answered
Plugin & extension development FAQs
Which platform should I build my plugin or extension on?
It depends on where your users already are and what problem you're solving. WordPress plugins reach the largest install base. Shopify apps target merchants on a growing platform with a clear monetization path. Chrome extensions sit inside the browser across any website. VS Code or Figma plugins reach developers and designers directly. We'll give you an honest recommendation after a short call.
Can you build a plugin or app to sell on a marketplace?
Yes. We build for the WordPress Plugin Directory, Shopify App Store and Magento Marketplace, handling the coding standards and review guidelines each platform requires so submission isn't a last-minute scramble.
How much does plugin or extension development cost?
Most projects fall between $3,000 and $40,000, depending on complexity and the number of integrations. A focused single-purpose extension sits toward the lower end; a full Shopify app with billing and an admin interface sits higher. Every quote is itemized before work begins.
How long does it take to build a plugin or extension?
A focused single-feature extension typically takes 3 to 6 weeks. A multi-feature app with billing, settings and third-party integrations usually runs 8 to 16 weeks. You see a working build early and a demo every sprint after that.
Can you add features to an existing plugin or extension we already have?
Yes. We audit the existing codebase first, flag any technical debt worth addressing before adding features, then build on a clean foundation so new features don't introduce instability into what already works.
Do you build private plugins for internal use or only marketplace products?
Both. Many clients need a plugin that solves one specific problem on their own site or in their own Shopify store, with no need for a public listing at all. Private builds follow the exact same coding standards as public ones.
Will the plugin stay compatible when the platform releases new versions?
We code to current platform APIs rather than deprecated workarounds, which significantly cuts compatibility risk. Our maintenance plans also include testing and updates each time a major platform version ships.
What happens after the plugin or extension launches?
Every project includes a handover, documentation and a warranty window for fixes. Most clients move onto a maintenance plan covering platform compatibility updates, security patches and a bucket of improvement hours.
Ready to build a plugin or extension that actually holds up?
Tell us what platform and what problem you're solving. We will recommend the right approach, the realistic cost and the timeline, usually within one business day.