WooCommerce Plugin Development

Custom WooCommerce Plugin Development — payments, shipping, B2B, subscriptions. PSR-4 architecture, REST APIs, and update-safe builds for serious online stores.

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Expert WooCommerce Plugin Development for Modern Stores

Custom WooCommerce Plugin Development — purpose-built extensions for payments, shipping, B2B catalogs, subscriptions, and bespoke checkout flows. Engineered to WordPress coding standards and update-safe by default.

Why Choose This WooCommerce Plugin Development Service?

Most off-the-shelf WooCommerce extensions solve 80% of the problem. The remaining 20% is what separates a profitable store from a frustrating one — a custom checkout field, a regional payment gateway, a subscription rule, an ERP sync. My WooCommerce Plugin Development service builds those last-mile features as proper plugins: namespaced PSR-4 code, capability-aware REST endpoints, PHPUnit-tested business logic, and update-safe integration with WooCommerce core. The output is a plugin your store can rely on for years, not a snippet that breaks the next time WooCommerce ships a major release.
Key Insight: Custom WooCommerce extensions built to WordPress coding standards PSR-4 autoloading, namespaces, and clean OOP architecture REST API endpoints with capability checks and rate limiting Update-safe integration with WooCommerce core via official hooks Gutenberg block components for cart, checkout, and product pages PHPUnit + Brain\Monkey unit tests for critical business logic GitHub Actions CI for lint, test, and packaged release ZIPs Versioned releases with CHANGELOG and a private update server

What You Get With My WooCommerce Plugin Development

Custom Payment Gateways

Regional gateways, tokenized card storage, multi-currency settlement, recurring billing, and BNPL integrations. WooCommerce payment work demands PCI awareness and battle-tested webhook handling — both standard in every gateway plugin I ship.

Shipping & Fulfillment Logic

Custom shipping calculators, distance-based rates, dimensional weight rules, multi-warehouse split shipments, and 3PL integrations (ShipBob, ShipHero, ShipStation). The plugin slots into WooCommerce’s shipping API instead of overriding it — predictable behavior on update.

Checkout Customization

Custom checkout fields with conditional visibility, custom validation, multi-step flows, free-shipping progress bars, custom order notes, and CRM-aware lead capture — all via a plugin that uses the supported checkout filter API.

Subscriptions & Recurring Billing

Custom subscription products, prorated upgrades, scheduled renewals, dunning emails, and integration with WooCommerce Subscriptions or Stripe Billing. Custom rules where the standard plugin stops short — without forking it.

B2B & Wholesale Features

Role-based pricing, hidden catalogs, net-30 invoicing, customer-specific catalogs, bulk-order discounts, and account-manager assignments. Build a real B2B storefront on WooCommerce instead of paying for a separate Magento instance.

REST API & Headless

Custom REST endpoints with capability checks, JSON schema validation, pagination, and rate limiting. Power mobile apps, headless storefronts, ERP integrations, and webhooks. Headless WooCommerce work is one of my most-requested services.

Security & Code Quality

Every input sanitized, every output escaped, every nonce checked, every capability verified. SQL via $wpdb->prepare() only. PHPUnit + Brain\Monkey unit tests on critical paths. PHPCS WordPress ruleset enforced via GitHub Actions on every PR.

Distribution & Updates

WooCommerce.com submission when public reach matters, EDD/Freemius licensing for paid distribution, or a private update server when the plugin stays internal. Versioned releases, CHANGELOG, and rollback strategy included with every project.

My WooCommerce Build Process

A predictable engineering workflow — discovery to release.

1

Requirements & Architecture

I capture user stories, edge cases, integrations, scaling targets, and security requirements specific to your WooCommerce store. Output: a written spec, an architecture diagram, a class/file map, and a fixed-fee or milestone budget. No guesswork later.

2

Plugin Scaffold & CI

PSR-4 autoloaded scaffold tailored to WooCommerce hooks, PHPCS with the WordPress + WooCommerce ruleset, PHPUnit harness, GitHub Actions for lint + tests + release packaging, and a feature-branch Git workflow you can plug into your team’s review process.

3

Iterative Build on Staging

Features land in small, reviewable PRs with tests where it matters. Every PR is deployed to a staging WooCommerce store running your real product catalog. You see weekly demos, leave inline comments, and steer the build mid-flight — no surprise reveal at the end.

4

Security & Performance Audit

Independent review of nonce/capability/sanitization coverage, SQL injection surface, payment-flow handling, and webhook authentication. Performance runs against realistic order volumes — DB queries profiled with Query Monitor under simulated load.

5

QA & Real Test Orders

I place real test orders for every payment method, exercise every conditional checkout path, and test refund + partial-refund flows. Cross-tested with WooCommerce Subscriptions, Memberships, Bookings, and any other extensions you have active.

6

Release & Long-Term Support

Versioned release with semver tag, CHANGELOG, and packaged ZIP. Optional retainer covers WooCommerce + WordPress version compatibility, bug fixes within SLA, and a backlog of new features per month. Your WooCommerce Plugin Development project keeps shipping instead of bit-rotting.

WooCommerce Plugin Pricing

Fixed-scope packages plus discovery-based custom quoting for larger plugins.

Quick Plugin

$1,099

Single-feature WooCommerce add-on.

  • 1 well-scoped WooCommerce feature
  • Up to 1 admin settings screen
  • 1 shortcode or 1 small block
  • PHPCS-compliant code with PHPDoc
  • Tested against current WooCommerce version
  • README and inline documentation
  • 1 round of revisions
  • 30 days of bug-fix support
  • REST API endpoints
  • WooCommerce.com submission
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MOST POPULAR

Professional Plugin

$3,499

Multi-feature WooCommerce extension.

  • PSR-4 autoloaded scaffold + namespacing
  • Multiple admin screens, blocks, and shortcodes
  • Custom WooCommerce REST endpoints + capability checks
  • PHPUnit + Brain\Monkey unit tests
  • GitHub Actions CI for lint + tests + release
  • Versioned releases with CHANGELOG
  • 2 rounds of revisions
  • 60 days of bug-fix support
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Enterprise Plugin

Custom

Multi-tenant, ERP-integrated, distribution-ready.

  • Multi-tenant or multi-store architecture
  • Custom DB tables with migrations
  • EDD/Freemius licensing or private update server
  • External integrations (NetSuite, SAP, Salesforce)
  • Comprehensive PHPUnit + integration tests
  • Independent security audit
  • WooCommerce.com submission and review handling
  • SLA-backed retainer for ongoing development
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WooCommerce Plugin FAQs

How long does building a WooCommerce plugin take?

A Quick Plugin typically ships in 2–3 weeks, a Professional Plugin in 6–10 weeks, and an Enterprise Plugin in 12–24 weeks depending on integrations and audit scope. Each project includes a written timeline up front so you can plan around it.

Can you build a custom payment gateway for WooCommerce?

Yes. Custom payment gateways are one of my specialties — regional gateways, tokenized card storage, multi-currency settlement, recurring billing webhooks, and BNPL integrations. The plugin extends WooCommerce’s WC_Payment_Gateway class and uses official hooks, never core file edits.

Will my plugin pass WooCommerce.com review?

Yes — when public release on WooCommerce.com is the goal, I build to their guidelines from day one: GPL-compatible, no trademark misuse, sanitized inputs, escaped outputs, prefixed globals, and complete user docs. I also handle the back-and-forth with the review team.

Do you write tests for WooCommerce plugins?

Yes. Professional and Enterprise plugins include PHPUnit unit tests for critical paths and Brain\Monkey or WP_Mock for hook-level testing. Integration tests against a real WooCommerce install are added for plugins with custom DB tables, REST APIs, or payment flows.

Can you build Gutenberg block components for WooCommerce?

Yes. Custom blocks for cart, checkout, mini-cart, product grids, and account screens — built with @wordpress/scripts and the modern WooCommerce Blocks API. They integrate cleanly with theme.json, FSE templates, and the official WooCommerce block library.

How do you handle WooCommerce updates and backwards compatibility?

Every plugin uses semver. Database migrations run on activation/upgrade with version checks. Deprecated functions stay around with @deprecated tags for at least one minor version. WooCommerce HPOS (High-Performance Order Storage) compatibility is checked on every release.

Do you sign NDAs for private WooCommerce plugin work?

Yes. NDAs and IP-assignment agreements are standard. Source ships via your Git provider (GitHub, GitLab, Bitbucket) with you as the owner so there is no vendor lock-in or licensing ambiguity. The plugin is yours to extend, fork, or sell as you see fit.

Can you fix or extend a WooCommerce plugin we already own?

Yes. Plugin rescue work — adding features, fixing performance issues, modernizing PHP support, replacing deprecated APIs, or migrating off legacy frameworks — is a regular part of my practice. I start with a 2-hour code audit and a written remediation plan.

Got a WooCommerce idea? Let’s scope it.

Share your specs, screenshots, or even a one-paragraph idea — I’ll send a fixed-scope WooCommerce Plugin Development proposal within 48 hours.

Get a Free Plugin Quote

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