If you have deleted any product from magento and now if you want to restore deleted products back to magento store catalogs then you can do it by using available extension on GitHub.You have to install this extension on your magento store and then you can see all the deleted product like trash.
You can download and install this extension from the Github.
Simple and quick installation Restore of products, including metadata and images 100% open source No limitations, no extra costs
How to Install :
1.Download the Trashcan extension. Download Now
2.Upload all files on your server root directory.
3. Login to admin panel and flush the cache
4.Now you can find all deleted products under the following menu
Trashcan > Manage Trashcan
5. Enjoy 🙂