Shipment Tracker is a two part mod:
1) Install a Stardew SMAPI mod that tracks what you ship
2) Upload the tracked stats to a website to view and explore the history of what you’ve shipped.

 Source Code for those interested
and here
 
Install Instructions

1) Install SMAPI
Main page: https://github.com/ClxS/SMAPI
Install .net, which you need: https://www.microsoft.com/en-gb/download/details.aspx?id=30653
Install SMAPI: https://github.com/ClxS/SMAPI/releases/tag/0.40.0
Download the SMAPI Zip, and move the contents toyour Stardew Program Folder (something like: C:\Program Files (x86)\Steam
Library\steamapps\common\Stardew Valley
 
2) Install the mod:
Extract the zip to your mods folder:
C:\Users\<user_name>\AppData\Roaming\StardewValley\Mods
So it should look like:
C:\Users\<user_name>\AppData\Roaming\StardewValley\Mods\ShipmentTracker
 
3) Play the game. After you’ve shipped some stuff, you should see a file in the \Mods\Shipment Tracker folder. (Something like your farmer name + Track Stats.csv
You can upload this file to see your stats

4) Upload the tracked stats to a website to view and explore the history of what you’ve shipped.

You can also download and unzip the website if you'd like to use it offline. You should be able to just open the index.html with a browser and have it work exactly like the online site.