Best WHMCS Addons, Modules and Developers: A Buyer's Guide
No single WHMCS addon is best. This buyer's guide sorts modules by job, names the vendors and module developers behind them, and gives a checklist to run before you pay.
Guides from client work
Step-by-step guides written from my own client work and checked against the official documentation. Each one says when it was last reviewed, and what I sell when it matters.
Editor's pick
No single WHMCS addon is best. This buyer's guide sorts modules by job, names the vendors and module developers behind them, and gives a checklist to run before you pay.
Latest articles
10 min
A do-it-yourself WHMCS setup in the order of work, checked against the WHMCS 9.0 documentation: install, the ten security steps, cron, the wizard, settings, products, automation, backups and test orders.
9 min
WHMCS ships no Razorpay module, so this covers Razorpay's own open-source plugin: which version to install, keys, the order.paid webhook, currencies, testing, refunds, renewals and common errors.
11 min
The order I use to move WHMCS to a new server with a maintenance window of minutes: what to copy, what to edit in configuration.php, when to reissue the license and what to check after DNS switches.
9 min
How to connect Stripe to WHMCS with the official modules: the four gateways, publishable and restricted keys, the webhooks WHMCS registers itself, Apple Pay, renewals, test cards and common errors.
9 min
How to run reseller hosting on WHMCS with cPanel and WHM reseller accounts: the privileges to ask for, the API token, prefixed packages, product types, provisioning errors, branding, per-account billing and limits.
12 min
A WHMCS multi currency setup step by step from the 9.0 docs: default currency, Base Conv. Rate, ECB rate updates, prices per currency, changing a client's currency, gateways, tax and rounding.
10 min
What a WHMCS license costs per month, read from whmcs.com: every self-hosted and fully managed plan, the client limits, the reseller wholesale rates, and the bills that come after the license.
9 min
How WHMCS VPS provisioning works: the module functions behind create, suspend, terminate and upgrade, the Virtualizor and SolusVM modules, configurable options for resources and templates, and a lifecycle test.
11 min
How to connect WHMCS to a cPanel & WHM server: the API token and the privileges it needs, package mapping, server groups, usage sync, single sign-on, Sync Accounts and the errors you will see.
10 min
A checked guide to WHMCS hooks: the includes/hooks folder, add_hook and priorities, nine common hook points, examples for InvoicePaid, ClientAreaHeadOutput and DailyCronJob, and when a hook is the wrong tool.
12 min
The WHMCS cron setup checked against the WHMCS 9.1 documentation: the command to copy, how often to run it, the Time of Day setting, cron.php options, status badges and debugging.
10 min
How to update WHMCS with the built-in Automatic Updater: where it is, which update channel to pick, what to check and back up first, PHP and ionCube requirements, and what to do when an update fails.
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