ASP.NET 3.5 and above only

Obout.Ajax.UI Controls - Captcha. Free for all.

  • Overview
  • The obout Captcha controls allow you to ensure that the form's response is generated by a person. The CaptchaImage control generates images with distorted text that can easily be read by a human, but does not allow different robots to read the text. The CaptchaValidator control allows you to integrate the CAPTCHA technology with the ASP.NET Validation.

  • Cross-browser support
  • The obout Captcha controls support all major browsers: Internet Explorer, Firefox, Opera, Safari and Google Chrome.

  • Flexible layout
  • Unlike similar controls of other manufacturers you can easily combine CaptchaImage and CaptchaValidator with any TextBox controls. You can easily create a user control with the look you want.

  • The distortion is easily controlled
  • You can control the background color and noise, the width, height and the line noise of the image. The level of the text's distortion is also controlled. All this is done with the corresponding properties of the CaptchaImage control.

"I just discovered your control suite by accident and, after looking at your online demos, I was so impressed that I couldn't resist the temptation to download and put it through its paces. After several hours of experimentation, I congratulate you on a really great product. Your controls are well designed, robust and performance."

Tim Coulter

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