LightForm is a free Ajax/PHP contact form. It combines FormCheck2 for fields validation and NiceForms to style text fields and textareas.

DEMO: View Demo »

Download:

Use of this contact form is free of charge but the copyright notes in the footer must remain intact.
I would appreciate if you send me the URI of your site if you use LightForm.

Download

Changelog:

October 09, 2008: LightForm now works with Niceforms 1.0 which allows to a set a different size for inputs, textareas and buttons. Input bug fixed in IE8 and files have been compressed to improve load time (just one stylesheet and only one images folder. All the javascripts are in the same folder).
May 28, 2008: Textarea bug fixed.

Features:

• Form Validation using FormCheck2.
• Spam Check.
• Display user IP, user agent and referrer in the message.
• Display a dialog box when message sent succesfully.
• Inputs and textareas are styled with NiceForms.
• Works in the most recent browsers (IE6+, Firefox, Opera, Safari and Netscape).

Installation:

1. Download and unzip the file
2. Copy all the files to your root Directory

Usage:

Open index.php in your web editor (e.g. Notepad) and change the email address line 55:
$to = 'yourname@domain.com';

License:

The CSS, XHTML, PHP and design is released under Creative Commons Attribution v2.5.

FormCheck2 is released under the MIT license.

NiceForms is released under no specific license. You are free to use and modify but you must provide credits to the author.

Caution

Form validation won’t work anymore if users disable Javascript.

(source: http://web-kreation.com/index.php/articles/lightform-free-ajaxphp-contact-form/)