Developers
From simply changing the look and feel to integrating new service providers, with WHMCS you have the tools and flexibility needed to make WHMCS your own.
Built for developers
WHMCS is a powerful, flexible and highly extensible platform upon which to build your business.
Modular Architecture
An open and "easy-to-use" modular system allows you to integrate custom and third-party systems alike (we provide code samples too).
Hooks and API
With a powerful hook and API system, you can tie into events within WHMCS and perform actions from remote systems.
Apps
Discover apps, integrations, themes and more available to buy or download in the WHMCS Marketplace.
Powerful API
Build integrations with other tools and your own backend systems using the powerful WHMCS API that your developers will fall in love with.
Our JSON and XML APIs can be leveraged in both local hooks and modules, as well as remotely, to execute actions within WHMCS from custom and third-party code.
Developer community
Have an idea or question, or looking for an integration? Join the active community of WHMCS experts and developers to get answers and inspiration.
Get started today
Streamline your operations with the leading platform built to automate
billing, provisioning, and support, freeing you to grow faster, smarter, bigger.
Starting from just $34.95 per month.
Developer tools and customization options
Everything developers need to build, customize, and scale with confidence.
Templates & Themes
All client facing pages (and many admin ones too) are fully templatized and accessible to edit and customize.
Hooks
A powerful hooks system allows you to tie into events within WHMCS and modify elements such as navigation menus.
GitHub
Code samples and templates are all made available on our public GitHub page for ease of access and updating.
Laravel/Eloquent ORM
We leverage several Laravel packages to make it easier for developers to work with our platform including Eloquent ORM.
Built to adapt to your workflow
Everything you need to build, customize, and extend with ease.
Bootstrap/jQuery
We utilize the latest Bootstrap and jQuery libraries for ease of use and maximum compatibility.
Class Documentation
Internal class documentation is made available for many core classes as well as all database ORM models.
Responsive
Responsive behavior built-in means WHMCS looks and works great across mobile, desktop and tablet.
Custom Pages
We make available documentation and guides for extending the WHMCS client area with custom pages.
Widgets
The admin dashboard contains widgets, you can minimize/maximize, re-arrange and even create your own.
Powerful API
Connect WHMCS with external tools and backend systems using JSON and XML APIs.