Calculator for electrical wiring and circuits
Internal Communication Bus
Online auctions with ascending price and time limit
Persistence
Tools for working with IP4/IP6 IP Addresses including IPv4, IPv6, CIDR, and Subnet Masks
MongoDB Persistence
Car Loan Auto Loan Payment Calculator - Calculate financing on a new car including trade-in and taxes
Converter to convert between various color systems such as RGB, CIELAB, CMYK, HEX, RGB, and XYZ
Shopping Cart for Online Shopping
Create, edit, and track invoices as part of your app
Reserved/Allocated/Assigned Seating for Venues and Events
Financial calculations such as Net Present Value, Present Value, Future Value