# Ultimate Multisite

An open-source WordPress plugin that turns Multisite into a Website-as-a-Service platform

https://topboilerplates.com/ultimate-multisite

Framework: WordPress | Pricing: Freemium, from $3

## Verdict

Best for: WordPress professionals who want to launch a site-building SaaS business (like a mini Wix) on top of WordPress Multisite.

Skip if: You're not building a WordPress-based site-builder business, or you need a more modern non-PHP stack.

## Description

Ultimate Multisite is a free, open-source WordPress plugin that converts a WordPress Multisite install into a WaaS business, similar to Wix or WordPress.com. It provides subscription management, built-in PayPal and Stripe billing, pre-designed site templates for signup, custom domain mapping, trial periods, and a coupon system, with premium add-ons available for $349.

## Pros and cons

+ Core plugin is free and open source, available on WordPress.org

+ Built-in PayPal and Stripe billing with trials and coupons

+ Domain mapping lets customers use their own custom domains

+ Supports major managed WordPress hosts (WP Engine, Cloudways, RunCloud, etc.)

- Full functionality requires premium add-ons ($349) beyond the free core plugin

- Tied specifically to WordPress Multisite, a more complex and less common WordPress setup

- WaaS platforms built this way require ongoing operational overhead (support, uptime) not solved by the plugin itself

## Features

- payments-included
- subscriptions
- free-trials
- coupons-discounts
- multi-tenant
- open-source
- free-tier

## Stack

- Stripe
- PayPal
- PHP

## Links

- Website: https://topboilerplates.com/go/ultimate-multisite

## Alternatives

- [IndieKit](https://topboilerplates.com/indiekit)
- [Carrot Seed](https://topboilerplates.com/carrot-seed)
- [ShipFast](https://topboilerplates.com/shipfast)