From interactive Desktop applications, to immersive Web and Mobile solutions, tools to meet your needs today and ensure your continued success tomorrow. With over 120 optimized controls and libraries, the DevExpress WinForms Subscription helps you deliver compelling, easy-to-use business solutions fast. Emulate the look, feel and capabilities of Microsoft Office or replicate the dock based UI of Visual Studio or Adobe Photoshop and take your WinForms applications to an entirely new level with familiar features end-users have come to rely upon. It's everything you need to build your best in one integrated suite.

Serial communication component for .NET.

communication with any device connected to serial port
easy of use and very powerful
uses multithreading and overlapping for maximum performance
available for .NET 2 - 4
source code included in full version
royalty free distribution in applications

The must-have productivity tool for Visual Studio, ReSharper 5 provides solution-wide error highlighting on the fly, advanced code completion, superior unit testing tools, over 30 advanced code refactorings, multiple handy navigation and search utilities, single-click code formatting and cleanup, automatic code generation and templates, and a lot more productivity features for C#, VB.NET, ASP.NET, XML, and XAML. ReSharper fully integrates with Visual Studio to intelligently and powerfully extend the functionality that is native to Visual Studio.

Whenever a developer tries to use a component or a tool that renders text, then he/she has to deal with fonts. Whether the component is a GUI control such as a text label or a text box, or a non-GUI component that renders text on a printer canvas, it must be able to process fonts. Here, the choice of fonts that can be used with the component is limited to those that are installed on the system and also by the font types supported by the run-time environment (.NET and JRE). What if you wanted to use a font that is not installed or if you wanted to use a font type that is not supported by the run time?

uses ZBar bar code reader library
supports EAN-13/UPC-A, EAN-8, UPC-E, Code 39, Code 93, Code 128, Codabar, PDF417, GS1 DataBar, GS1 DataBar Expanded, Interleaved 2 of 5 and QR Code barcodes
available for .NET 2 - 4.5
source code included in full version
royalty free distribution in applications

Database .NET is a simple and intuitive database management tool for multiple databases, making local and remote database administration easier. With it you can Create databases, Design tables, Edit data, Export data, Generate scripts and run SQL queries. Create, Shrink, Protect Database. Export to CSV/XML/TXT/XLS/SQL. Syntax Highlighting. Table Editor.

Deep inside all of ServiceStack's premium libraries lies a high-performance core containing all of ServiceStack's super text powers. Centered around .NET's fastest full-featured JSON Serializer is a convenient utility belt containing 100's of extensions enhancing .NET's built-in String, Stream, Bytes, List, Dictionary, Reflection, Task, WebRequest types and more.

Available in Standard, Professional and Enterprise editions, TX Text Control ActiveX is a royalty-free word processing control that offers developers a broad range of word processing features in one reusable component. It is ideally suited to all applications that demand powerful, but flexible word processing features.

EO.Pdf for .NET is a set of .NET components for you to easily create, read or modify PDF file in your Microsoft.NET application (both ASP.NET Web application and traditional Windows application). Key features include:

HTML to PDF PDF Creator API PDF Reader API PDF Page Extraction API
PDF Splitting API PDF Merging API PDF Encryption API PDF Decryption API
ASPX To PDF MVC To PDF

JetBrains dotCover is a code coverage tool for .NET developers. It is a part of the JetBrains .NET tools family that also includes ReSharper, dotTrace, and dotPeek.