Visual Studio add-in/extension that generates code based on OO design patterns
This is a Visual Studio add-in for VS 2008,2010, 2012 & 2013 and a VS extension for VS 2012,2013,2015 and 2017
that indexes some commonly known OO patterns,
presents them in easy to search user interface and inserts the code into your working project.
It provides you with parameters to further customize the patterns and
It works for languages supported by Visual Studio like C#, VB.net, C++ flavors, F# etc.
For the add-ins and extensions required by the VS versions prior to 2015 2017 you can download them from codeplex, but for VS 2012, 2013, 2015 and 2017.

GroupDocs.Conversion for .NET is a simple set of APIs that helps developers build powerful document conversion applications in C#, ASP.NET and other .NET related technologies. This document conversion API enables your applications to configure and convert among 50+ file formats, including documents, spreadsheets, presentations, raster images, emails, and more. GroupDocs.Conversion for .NET API provides fast, efficient and reliable file conversion process to your end-users.

The QuickBooks ADO.NET Data Provider enables user to easily connect to QuickBooks data from .NET applications. Complete read-write access to QuickBooks enables developers to search (Customers, Transactions, Invoices, Sales Receipts, etc.), update items, edit customers, and more, from any .NET application.

The Dynamics CRM ADO.NET Data Provider enables user to easily connect to Dynamics CRM data from .NET applications. Rapidly create and deploy powerful .NET applications that integrate with Microsoft Dynamics CRM account data including Leads, Contacts, Opportunities, Accounts, and more!

The Dynamics 365 Sales ADO.NET Data Provider enables user to easily connect to Dynamics 365 Sales data from .NET applications. Rapidly create and deploy powerful .NET applications that integrate with Microsoft Dynamics 365 account data including Leads, Contacts, Opportunities, Accounts, and more!

The Salesforce ADO.NET Data Provider enables user to easily connect to Salesforce data from .NET applications. Rapidly create and deploy powerful .NET applications that integrate with Salesforce account data including Leads, Contacts, Opportunities, Accounts, and more!

The NetSuite ADO.NET Data Provider enables user to easily connect to NetSuite data from .NET applications. Rapidly create and deploy powerful .NET applications that integrate with NetSuite account data including Leads, Contacts, Opportunities, Accounts, and more!

DotNetCompression is a real-time compression library in C# that provides ultra fast LZF4 streams, faster-than-native DEFLATE/ZLIB/GZIP streams and LZMA/BZIP2 streams for maximum compression.

It intelligently runs automated tests so that you don't have to, and gives you a huge amount of useful information about your tested code, such as code coverage and performance metrics, inline in your IDE while you type.

Easily create connection strings for the most popular databases.
Supports building connection strings for Excel, FileMaker, Firebird, IBM DB2, Informix, Ingres, Microsoft Access, MySQL, Oracle, PostgreSQL, SQL Server, SQLite, Sybase Adaptive, Sybase Advantage, Teradata, VistaDB, and Windows Azure.
Easily create connection strings for the most popular databases.
Ability to parse and modify existing connection strings.
Advanced properties
While it can be purchased separately, this product is also included in the Gold Suite. Gold Suite subscribers receive all product updates and all new products as part of a yearly subscription. It is the best value in the industry.