Build Web Forms apps for any browser and
device in half the time

Visual Studio 2017 is Supported

Key Features

Complete Set of Features and Controls

Enjoy components for every need: navigation and layout, data management and visualization, editing, interactivity and more. In our 11 years of aggressive product development – including 3 major and up to 6 minor releases per year – we have implemented, tested and optimized over 4,000 features in Telerik ASP.NET controls.
Complete Set of Features and Controls

Mobile Support and Responsiveness

The suite offers various approaches for mobile-optimizing your ASP.NET project at varying levels of effort:
  • With minimal time and effort – all controls run on mobile out-of-the-box, you don’t need to build a mobile version of your project.
  • For awesome mobile performance – some of the controls are specifically built for mobile, representing light weight versions of the original controls. They feature an additional mobile-optimized HTML rendering including styles, scripts and media. Read more about the adaptive controls.
  • Add responsive design capabilities to your project – the Page Layout Framework allows you to easily arrange the layout of certain elements or entire pages completely on the server side.

Learn more about how Telerik controls help you deliver tailored UX to any screen size.

Mobile Support and Responsiveness

21 Built-In Professional Grade Skins

Give your applications a sleek, professional look by setting a single property. By applying one of the 21 professionally-designed skins that come with Telerik UI for ASP.NET AJAX, including two engineered with mobile devices in mind, you save design and front-end development time.

No need to be a CSS wizard to create or customize the Telerik skins with our web-based Progress Saas ThemeBuilder.
Built-In Professional Grade Skins

Exceptional Performance and User Experience

We constantly optimize the performance of UI for ASP.NET AJAX to meet your end users’ expectations. This is why the controls: 

  • Produce minimal and clean HTML and CSS
  • Minimize JavaScript by loading only what’s needed
  • Reduce postbacks for a better user experience
  • Compress data transferred between browser and server (Pages, JavaScript, ViewState, JSON data, etc.)
  • Use built-in CDN support and CSS sprites to deliver content faster to end-users (Telerik covers all CDN costs for you)
  • Minimize memory usage and have robust code, free from memory leaks
Exceptional Performance and User Experience

HTML5-Based Rendering

To keep your apps up to date with modern technologies, many Telerik ASP.NET controls feature HTML5 and CSS3-based render mode. The modern, lightweight rendering saves a big portion of the HTML, CSS and resources used by the controls, thus improving their performance.
HTML5-Based Rendering

Developer Friendly Toolset

If you have worked with the Microsoft ASP.NET controls and AJAX framework, then you’ll easily work with the Telerik controls. Our server-side and client-side APIs closely mirror Microsoft.

Telerik easy start controls:

  • Integrate seamlessly into your Visual Studio toolbox for quick drag and drop usage;
  • Can be configured codelessly through the rich Design-time Wizards;
  • Come with thousands of demos and help articles, as well as dedicated support, even during your trial.
Developer Friendly Toolset

Seamless UX Across Devices and Browsers

Telerik ASP.NET AJAX controls look and work flawlessly across all major browsers: Internet Explorer 6+, Chrome 2+, Firefox 3.6+, Safari 4+ and Opera 10+.

Read the full list of supported browsers

Standards Compliance and Accessibility

Telerik ASP.NET controls are Section 508 compliant and follow the W3C Web Accessibility Guidelines 2.0 for level A, AA or AAA compliance. Also, all components strictly follow the W3C Standards to be XHTML1.1-compliant, and most of them ​are HTML5-compliant.
Standards Compliance and Accessibility

SharePoint Integration and Web Parts

Telerik controls help you build sleek and easy-to-customize SharePoint farm solutions faster. All components and web parts work seamlessly in a SharePoint 2010/2013 environment, and pass the MSOCAF validation test. Deploy the controls to build your own custom solutions, or use our intuitive and easy-to-customize web parts, Editor, Grid, Scheduler and ListView.

More about SharePoint Web Parts

Download SharePoint Web Parts

SharePoint Integration and Web Parts

Document Processing

Take advantage of the RadSpreadProcessing, RadSpreadStreamProcessing, RadWordsProcessing, RadPdfProcessing and libraries, which enable the processing of the most common text, spreadsheet, and PDF file formats without having Microsoft Office or other third-party libraries installed. Now application users can create, load and modify documents in a variety of formats including:

  • DOCX
  • RTF
  • TXT
  • HTML
  • PDF
  • XLSX
  • CSV
  • Tab-delimited

Enable your application to seamlessly export and import documents or convert them from one format to another. In addition, the zip library allows you to create and modify archives with variety of compression mechanisms supported, so you can transfer data faster and secure.

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Part of DevCraft

Progress® Telerik® UI for ASP.NET AJAX is available for purchase individually, or as a part of DevCraft—the most comprehensive HTML5 and .NET toolbox.

Gain access to the complete stack of products to help you build stunning apps twice as fast:

  • Over 550 UI controls for HTML5 and all .NET technologies
  • Five powerful productivity, code quality and debugging tools for faster development
  • Reporting and data access
More about DevCraft
Telerik DevCraft Value Bundle

Industry-Leading Support

Expert and Timely Response

Get answers to any questions you have, even during your trial, directly from the developers who build Progress Telerik UI for ASP.NET AJAX.

Contact Progress Telerik support
Telerik Expert Support

Need Evaluation Help?

If you are not a developer or don't have time to thoroughly evaluate our product, send us your project requirements. We will evaluate your required features for you and let you know how our controls fit your needs.

Send us your project requirements
Send Us Your ASP.NET Project Requirements

New Features and Roadmap

Telerik Kendo UI Theme Builder image

New Sass Theme Builder

Theme Builder enables you to create or modify themes so they match your web app design and a new Bootstrap 4 theme to blend in and complement the basic Bootstrap 4 components.


  • UI for ASP.NET AJAX has saved our team literally man years of coding/testing. Hands down one of the best control libraries out there. Excellent quality. Excellent documentation. You cannot go wrong buying components from Telerik.

    Erik HoffmannSoftware Developer
  • Telerik UI for ASP.NET AJAX is incredible. The design is perfect. From the very first e-mail, the service is fantastic. Huge selection of templates, and a creative selection of functional features. The suite is the best of its kind!

    Mike EvstifeevSoftware Developer
  • The time spent building web pages for my web project was cut by 50% using Telerik UI for ASP.NET AJAX. The return on investment was way higher than the cost of the ASP.NET suite itself. I've been in the IT business for more than 17 years, and Telerik offers the best customer support.

    Richard MartinWeb Developer

Next Steps

Download 30-day free trial

Try Progress Telerik UI for ASP.NET AJAX with dedicated technical support.

Launch demos

See the UI for ASP.NET AJAX in action and check how much they can do out of the box.

See pricing

Check out the offers. Purchase an individual suite or treat yourself to one of our bundles.