MainWP is a suite of open-source self-hosted plugins & extensions for users that have multiple WordPress sites and want to control them from one central location. This includes sites on different hosts or servers.

Once you have connected your sites (called Child Sites) to your Dashboard, you can do almost anything from your MainWP Dashboard that you would be able to do from your Child sites wp-admin.

Combined with the MainWP extensions, here's a glimpse of what you can do to manage hundreds of WordPress websites effortlessly:

💰 Free Forever

🏷 White Label

♾️ Connect Unlimited Websites

👥 Organize Sites in Groups

🕒 Uptime & Site Health Monitoring

🚩 Lighthouse

🔄 Effortless Bulk Updates

🚧 Staging, Clone

📝 Client Reports

🔒 Full Privacy, Self-hosted

🔗 Security & Backup Integrations

😌 Bulk Content Management (Draft, Publish, Edit, Trash)

💬 Comments

🛠 Maintenance

🛡 Security

📈 SEO, Traffic, etc. Analytics

🚀 Rocket

And a lot more 👉 https://mainwp.com/mainwp-extensions/

The MainWP plugin is 100% FREE, forever! However, MainWP Pro offers a wide range of 30+ premium Extensions at a single price. The extensions aren't required, but they extend the functionality to improve your workflows.

During the subscription, you'll get Priority Support, Important security & performance updates, and access to all new extensions.

• Monthly: $29/mon

• Yearly: $199/year

• Lifetime: $499 (One-time)

SpawnWP is a free and open-source, self-hosted WordPress development lab for creating isolated, disposable WordPress environments on your own Debian or Ubuntu server.

It is designed for development, testing, debugging, plugin/theme evaluation, demos and experimentation — not as a traditional hosting control panel.

Each WordPress instance runs in its own isolated Docker stack and can be created, reset, snapshotted or destroyed whenever needed. SpawnWP also includes a web-based cockpit for managing environments without having to work exclusively from the command line.

Key features include:

• Disposable WordPress sites on your own VPS
• Isolated Docker-based environments
• Multiple PHP and WordPress versions
• Create, reset, snapshot and destroy sites
• Blueprints for quickly reproducing predefined WordPress setups
• Built-in Mailpit for testing outgoing email
• Adminer for database management
• Developer and QA tools such as Plugin Check, Theme Check, PHPCS/WPCS, PHPStan and Query Monitor
• HTTPS support
• Pre-built images for faster environment creation
• Web-based management cockpit
• SpawnWP Deploy, an optional plugin for capturing an existing WordPress site and turning it into a reusable blueprint

Unlike hosted services such as InstaWP or TasteWP, SpawnWP runs entirely on infrastructure you control. There are no per-site fees, artificial site limits or recurring SaaS subscriptions imposed by SpawnWP itself — your limits are essentially the resources available on your server.

SpawnWP started as a personal tool for quickly spinning up WordPress test environments and was later released publicly as an MIT-licensed open-source project.

It is particularly useful for WordPress developers, agencies, plugin and theme authors, QA testers and anyone who frequently needs clean WordPress installations without repeatedly configuring servers from scratch.