SimpleMMO Collection Manager is a free Chrome extension developed by julysfire. This handy tool helps you keep track of the items you have collected in the popular online game, SimpleMMO. Whether it's collectibles, equipment, sprites, avatars, or backgrounds, this extension stores a list of all the items you have added to your collection.

When you visit your inventory, the extension will display a green checkmark next to the item name if you have collected it already. If you haven't collected the item, it will show a red exclamation mark. Additionally, items that cannot be collected but are bought from the store will be marked with a yellow $ icon, indicating that they can be quick sold.

One important thing to note is that the extension automatically reads the page for item names and adds them to its internal storage. So, after installing the extension, it is recommended to go through all the pages on your collection tab to generate a list of what you already have.

SimpleMMO Collection Manager works on any page that shows your inventory, including the Market and Dumping Grounds. Any items you add to your collection will be automatically updated. The extension also allows you to set a quicksell threshold limit for all items in the popup. You can import and export your current lists, with exported lists saving as .csv files for easy use in Excel.

With SimpleMMO Collection Manager, organizing and managing your collectibles has never been easier.