WordPress Plugin Development
Custom WordPress plugins built to Core standards — private, client-only, or published to wordpress.org.
Most WordPress sites don’t need a new plugin. They need one of the good ones already on wordpress.org, configured properly. We say that up front because a fair share of “can you build us a custom plugin” calls end with us recommending an existing plugin and a shorter invoice instead. The rest are the real cases: a business rule specific enough that no general-purpose plugin covers it, a data model your theme and current plugins were never built to hold, or an integration between two systems that only your business runs together. That’s the work on this page — plugins built for one job, coded the way WordPress Core itself expects a plugin to be built, not the way a page builder snippet or a generated one-off script would get something working by Friday and breaking in March.
Every plugin we write hooks into the WordPress Plugin API — actions and filters — instead of editing core files or reaching into theme templates directly, because hooks are the one integration point that survives a core update, a theme switch, or a different developer inheriting the code two years from now. If the plugin needs its own data, we register a custom post type when the content is post-like, or a proper database table created and versioned through dbDelta when it isn’t — order records, sync logs, form submissions, anything relational that doesn’t belong crammed into wp_options as a growing serialized blob. We stopped storing structured data as serialized arrays in wp_options a while back; it works fine until that option autoloads on every single page request and nobody notices until the site is slow and nobody can say why. If something outside WordPress needs to read or write that data — a mobile app, a headless React frontend, a warehouse system — we expose it through custom REST API endpoints with proper permission callbacks, instead of asking another system to query your database directly or scrape admin-ajax.php.
Security isn’t a pass we do at the end. Every form the plugin renders carries a nonce and gets verified on submit, every piece of user input is sanitized coming in and escaped going out, and every action checks the current user’s capability before it runs, so a shop manager and an administrator don’t get the same buttons by accident. We write to WPCS, the WordPress Coding Standards, and run PHPCS before anything ships — partly because that’s the bar wordpress.org holds a plugin to if you ever submit one, and partly because inconsistent code is exactly where security bugs like to hide.
Private plugin, or public on wordpress.org?
Most of what we build stays private: a plugin scoped to one client’s business logic, delivered as a zip or through a private repository, versioned alongside the rest of their stack, with no obligation to support server configurations we’ve never seen. We only recommend publishing to wordpress.org when the plugin solves a genuinely general problem and the client actually wants the maintenance commitment that comes with it — support-forum tickets, compatibility testing against every new WordPress release, backward compatibility for people still running last year’s PHP. Publishing is an ongoing relationship with the public, not a one-time submission, and we say so before recommending it rather than after.
How we work
We start with the business rule itself, written down in plain language, before opening an editor — most “plugin bugs” we get called in to fix started as a feature nobody wrote down clearly enough the first time. From there: a short technical spec, a build against a local WordPress install rather than your live site, a WPCS and security pass, and a staging deployment for you to click through before anything touches production. We hand over documented, readable PHP — commented where the reasoning isn’t obvious, not where the code already explains itself — because a plugin only one developer can maintain is a liability with a delay timer attached.
This is not the right service if what you actually need is a visual page layout, a form with conditional logic, or an SEO tweak — that’s Elementor, Gravity Forms, and Yoast territory, and we will point you to it rather than rebuild it. It is the right fit when the logic is specific to how your business runs and nobody has already built and maintained a plugin that covers it.
What this is meant to achieve
The measures we hold the work to, agreed with you before the build starts.
A plugin that keeps working through WordPress core and PHP version upgrades instead of breaking on the next update
No more stacking three overlapping plugins to approximate one business rule
Clean activation and deactivation, no orphaned database tables or options-table debris left behind
Plugin data that's safely reachable by other systems through a documented REST API, not direct database access
Code the next developer, ours or yours, can actually read, extend, and trust
A plugin ready to pass wordpress.org review on the first or second submission, for clients who choose to publish
Questions people ask before signing
Straight answers on pricing, code ownership, timelines and what happens after launch.
That’s the main reason to hook into the WordPress Plugin API instead of editing core files or the theme directly, since hooks are what WordPress commits to keeping stable across updates. We also test against the current WordPress release and run the plugin through WPCS before delivery, which catches a lot of the deprecated-function issues that otherwise show up two versions later.
If the logic is specific to your business, it stays private, delivered to you directly with no public support obligation. We only suggest wordpress.org when the problem is genuinely general enough that other site owners would want it too, and you’re prepared to handle support tickets and compatibility testing as an ongoing job, not a one-time release.
Yes. We build custom REST API endpoints with their own permission callbacks for exactly that, so an app or an external service can read and write data without touching your database directly or relying on admin-ajax.php.
Usually not. If the existing plugin exposes its own hooks and filters, we write a small companion plugin that extends it through those instead of modifying its files, which would just get overwritten on the next update. A rebuild only makes sense when the plugin itself is abandoned or actively fighting the rest of the site.
You do. You get the full, documented source: no obfuscation, no license key phoning home to us, no dependency on us to keep it running. If you never call us again, the plugin still works.
Nonces on every form, sanitization on input, escaping on output, and a capability check before any privileged action runs, so a subscriber and an administrator never get access to the same functions by accident. We also run the plugin through PHPCS’s security sniffs as part of the WPCS review before it ships.
Ready to talk about WordPress Plugin Development?
Tell us what you need built. You will get a written proposal with scope, timeline and price before any work begins.