Telerik UI for ASP.NET AJAX

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

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

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

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

100+ ASP.NET AJAX Controls

See Them in Action

Launch demos

Get the Best Value for Money

Save Money

Get the best ROI

on the market

A product synonymous with quality and history in the ASP.NET space, Telerik® UI for ASP.NET AJAX is available for purchase individually or in one of our price-friendly product bundles.

For one low price you get our extensive library of components (more than 100), three major update releases per year, and flexible support options. Value and convenience in one package.

Save Money

Save up to 50%

in development time

Telerik UI for ASP.NET AJAX can save your team man years of coding and testing. Try it out and see how fast and easy it is to build web apps. A bunch of intuitive to use, extremely powerful and delivering high quality UI experience components are here to make your app mesosphere-cool.

Great demos and excellent documentation are here to get you coding on your specific project within hours.

Save Money

Buy it as Part of DevCraft

Telerik .NET and Kendo UI JavaScript components and Reporting and Productivity tools enable you to build modern and high-performant apps on any web, desktop or mobile platform—fast. Comes with flexible support options designed to cover your every need.

Optimize your time and budget by taking advantage of our intuitive APIs, thousands of demos with source code availability, comprehensive documentation and a full assortment of VS templates.

More about DevCraft

What's New



A variety of high priority issues have been resolved and performance enhancements have been implemented.  

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 30-day free trial

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