• A flexible website security component, the ASP.NET AJAX Captcha will protect your registrations, comments and polls from an automated spam. 
  • Part of the Telerik UI for ASP.NET AJAX library along with 120+ professionally designed UI components.
  • Includes support, documentation, demos, virtual classrooms and more!
Telerik UI for ASP.NET AJAX Suite
  • Various Protection Modes

    Choose between the captcha, an invisible textbox or a minimum form submission time to prevent automated form submissions.
    Telerik UI for ASP.NET AJAX Captcha - protection modes
  • Audio Support

    Enable your captcha control to be read via a generated audio code, ideal in accessibility situations.
    Telerik UI for ASP.NET AJAX Captcha - audio
  • Validation Summary

    Display your captcha errors in your existing validation summary control.
  • Custom Character Set

    Define which character set the captcha control will derive its image from.
  • Localization and Accessibility

    Provide a captcha interface for all of your users—regardless of preferred language. Thanks to the localization mechanism, based off of ASP.NET localization, you can serve the control in any language you have defined for your application.
Next Steps