InstantWP is a local WordPress development environment that allows you to quickly set up and test WordPress sites. This guide will walk you through the process of installing a Duplicator backup in InstantWP.

Note: InstantWP is no longer maintained (no updates since 2018). Modern browsers now block the port InstantWP uses by default, which means the steps below may not work without extra configuration. We recommend using an actively maintained local environment such as LocalWP, DevKinsta, or a Classic Installation instead.

Steps to Install a Duplicator Package in InstantWP

1. In the InstantWP interface, click on Themes Folder to open the Web UI.
2. On the left panel, locate and click on the WordPress folder.
3. Click on the Upload Files icon at the top of the interface.
   • Upload both the installer.php and the archive.zip/.daf file that was created with Duplicator.
4. Open your browser and go to: http://127.0.0.1:10080/wordpress/installer.php
   • This will start the Duplicator installation process.
   • Note: This step may fail with an ERR_UNSAFE_PORT error, since most modern browsers now block port 10080.
   • Workaround: In the InstantWP Control Panel, go to the Advanced Tab, click Edit Config, and change PortOffset=10000 to a different value (e.g. PortOffset=11000). Restart InstantWP, then use the Web Console to run wp search-replace 10080 11080 (matching your old and new ports) to update the database. Access the installer at the new port going forward. (See InstantWP’s documentation for more detail.)
5. Follow the remaining setup instructions to complete the installation.
   • Once finished, log in to your WordPress site in InstantWP.

That’s it! You now know how to successfully install a Duplicator backup in InstantWP.

If you need a guide on how to perform a Classic Installation without installing WordPress first, check out our guide on how to do a Classic Installation.