Home
Services ▾
WorkAboutBlogContactStart a project
🔌

Plugin Development & Customization

Custom plugins, apps and extensions.

Plugin Development & Customization at KorTechX
✅ 100%

When off-the-shelf doesn't cut it, we build it. Custom WordPress plugins, Shopify apps and Chrome / Firefox extensions engineered around your exact workflow.

Clean, secure, update-safe code that plays nicely with your existing stack.

What you get

Built to a higher standard

🧱
Truly customFunctionality built to your spec — no compromises or bloat.
♻️
Update-safeFollows platform standards so updates never break your site.
🛡️
Secure & reviewedSanitised, validated and hardened against common exploits.
📦
Documented handoverClear docs so anyone can maintain it later.

Deliverables

Everything included

  • ✓ Requirements & feasibility
  • ✓ Architecture & spec
  • ✓ Plugin / extension build
  • ✓ Testing across environments
  • ✓ Docs & deployment
WordPressShopify AppsChromeFirefoxPHPJavaScript
100%

tailored to your workflow

Under the hood

The technical detail

A precis of how we actually work — the standards, stack and checks behind plugin development.

WordPress plugins and standards

We write to the platform, not against it. Hooks (actions and filters) instead of core file hacks, WordPress coding standards checked by PHPCS, and strict security hygiene: nonce verification, capability checks, input sanitisation, output escaping and prepared statements throughout.

Shopify apps and webhooks

We build public and custom Shopify apps the right way: App CLI scaffold, backend app structure, and the GraphQL Admin API for product, order and customer operations. App installs use the OAuth flow, and incoming webhooks verify HMAC signatures so you can trust the data.

Browser extensions (Manifest V3)

For Chrome and Firefox we build to Manifest V3: service workers, messages and permissions declared minimally, and a CSP that keeps reviewers happy. The extension ships with storage scoped to what it actually needs.

Related reading

Guides to go deeper

Shopify vs WooCommerce in 2026Read →Ecommerce website development guideRead →Custom builds vs off-the-shelfRead →

FAQ

Common questions

Can you fix or extend an existing plugin?+

Absolutely — we audit, patch and extend third-party or legacy plugins as well as build from scratch.

Do you publish to marketplaces?+

Yes, we can prepare and submit apps/extensions to the WordPress, Shopify and browser stores.

Will the plugin break when WordPress, Shopify or Chrome updates?+

We build to the platform's public, supported surfaces and test against a version matrix before every release. Deprecations are reviewed each cycle and you're told what's affected in plain language before an upgrade.

How do you secure a custom plugin?+

Nonce verification, capability checks, input sanitisation and output escaping, prepared SQL statements, no secrets in logs, and POST-only mutations where sensible. What ships is hardened against the OWASP Top 10 for plugins.

Can you audit an existing third-party plugin we run?+

Yes — we review code for security, performance and update-safety, write up findings with a risk level, and either patch what's broken or document the exposure so you can decide.

What does post-launch support include?+

An optional retainer: compatibility fixes, small enhancements, security monitoring and marketplace-compliance maintenance (store requirements change) so your extension stays listed and current.

Do you handle marketplace submission for us?+

Yes — we prepare the app/extension, listing assets, privacy URLs and scopes, then manage the review feedback rounds until it's live in the WordPress, Shopify or browser store.

Let's build your plugin development

Tell us your goals and we'll come back with a plan and a quote.

Start a project →

Other services

Get a quote