To install:

• Make sure you have a web server with PHP installed
• Move the plotupload or faweupload files to your web directory (PlotSquared or FastAsyncWorldEdit) Note: Either will work for both plugins, there's just a different style and text
• (If you get errors, make sure PHP isn't horribly outdated)
• Configure the style and any other settings in plotupload/config/configuration.php
• Change the url in PlotSquared settings.yml
• Test out /plot download

Benefits over the old interface:

• This can run on a different machine to your server
• You can connect multiple servers to the same web interface
• Downloads/Uploads are entirely unlisted/anonymous
• You can upload files from your computer
• Supports multiple formats (MCA/Schematic)
• You can delete a file after you download it

What functionality is no longer present:

• Plot/User Search (sacrificed for multi-server support)
• REST-API

Notes:

• If you are going to monetize this (e.g. for donators) please consider the amount of effort that has gone into PlotSquared; currently we get very little in terms of contributions.