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Telerik UI for ASP.NET AJAX

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


*Includes access to online technical training to speed-up your onboarding.


Telerik Earns Multiple TrustRadius Best of Development 2021 awards

Telerik has won Best Feature Set and Best Customer Support. The award is based on both quantitative and qualitative feedback provided in user reviews with regards to customer support, feature set and usability.

Key Features

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.


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


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

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

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

Conversational UI - Modern UI for Chatbots

The Conversational UI control (aka RadChat) is a new control intended to be used with various chat bot services. Highlights of the features include:

  • Built-in hero cards
  • Built-in suggested actions
  • Built-in simple message and typing indicator
  • Custom card/attachment templates
  • Easy connectivity to chat bot services (Azure/Microsoft Bot Framework,, Amazon Lex)
conversational UI resized

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

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

120+ ASP.NET AJAX Controls


See Them in Action

Launch demos

Upgrade to Telerik DevCraft Complete

Be Ready for Any Project & Technology

Save up to 50% in development time by getting 1,250+ .NET and JavaScript UI components for building web, desktop and mobile apps.

Get the Best Value for Money

Enjoy Telerik UI for ASP.NET AJAX along with embedded reporting and mocking tools while saving up to 90% from the upgrade price.

What's New

Telerik UI for ASP.NET AJAX Breadcrumb

New Component: Breadcrumb

The Breadcrumb for ASP.NET AJAX indicates the current position within your application and provides a trail for your users to navigate backwards.

Telerik UI for ASP.NET AJAX Grid Export to Excel

New Grid Export Feature: Auto-Fit Column Width

The Telerik UI for ASP.NET AJAX Grid Export now supports various features such as Auto-fit column width, Worksheet name property and enhanced styling functionality.

Telerik UI for ASP.NET AJAX Grid Improvements

New Grid Export Improvements

In addition to the new features, we’ve further refined the stability of the Telerik UI for ASP.NET AJAX Grid Export to Excel as a result of multiple bug fixes.

Support and Learning

Success Story

"We selected Telerik because it seemed more robust than other offerings—it looked like an interface on steroids"

Tom Stein, Computer Systems Manager, NASA’s Planetary Data System Geosciences Node

Read the story
Blog Post

Modern Tech Stack for ASP.NET Apps

If you are an ASP.NET developer, make that breakneck pace with innovations coming from Microsoft towards the next generation of web development platform—ASP.NET Core 1.0.

Industry-Leading Support


Expert and Timely Response

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

Contact 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

Next Steps

Launch demos

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

Download Free Trial

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