No HTML knowledge needed!
Drag and drop objects from the toolbox on the page anywhere you like!
Site Management. Easily add, edit, clone and structure your web pages from a single file.
Form layout object to create forms, including actions, hidden fields etc.
Supports Form fields: Editbox, TextArea, Checkbox, Radiobutton, Combobox and Button.
Form Wizard to create form in 4 steps. Select from a dozen ready-to-use forms.
Captcha object for (PHP) forms.  Helps to stop spammers from submitting form data automatically.
Validation tools for form components: EditBox, Combobox and TextArea with optional info balloons or native HTML5 validation.
The built-in form procesor has ability to store form data in a MySQL database or save to a CSV file.
Rich text support: text object can contain different fonts, colors, links and sizes.
Custom HTML object to insert your own HTML or Javascripts.
JAVA, Flash, HTML5 Audio/Video, YouTube, Flash Video. Quicktime, Real Audio and other Plug-In support.
Publish your entire web site, a single page or a group of pages (to local drive or a web server) .
Built-in FTP Client to manage your online files.
Photo Gallery with lots of cool features like picture frames and support for lightbox slideshows: slimbox, prettyphoto, fancybox.
Built-in Banner maker.
Rollover images, Image maps, animated Slideshows
Navigation bars, Tab Menu, Mega Menu Slide Menu and many other navigation options.
Menubar: powerful menu script that can mimic complex menus found in popular GUI applications.
Ready-to-use Javascripts (Facebook, MySpace, Twitter, Text effects, and much more).
Template support. Already more than 200 templates available!
Support for third-party add-ons (extensions), using the Web Builder Extension Builder.  Already more than 250 extensions available!
Import existing HTML pages.
Built-in Popup support.
Image tools: Contrast, Brightness, Hue/Saturation, Flip, Rotate, Resample, Crop and Stencils.
Image effects: GrayScale, Negative, Sepia, Blur, Soften, Sharpen, Noise, Emboss and more!
WaterMark tool to image with many options! Protect your copyright protected images was never easier.
Shape object (Rectangle, Ellipse, Diamond, Hexagon, Octagon, Arrows, Flags, Signs, Stars, Talk Bubbles and much more!).
Drawing tools: Line, Line + Arrows, Scribble, Polygon, Curve and Closed Curve.
Rotate images and shapes.
Master page object. This allows you to re-use objects from other pages (master page concept).
Master frames. Create master borders where only the content of the pages is different for each page.
Layer Object for advanced layout possibilities.
The PayPal eCommerce Tools are the quickest and easiest way to add eCommerce to your web site!
RSS Feed object with podcast option.
Blog with built-in RSS feed option.
Google compatible sitemap generator
ClipArt, this object uses dingbat fonts and converts them to vector shapes.
TextArt object which can be used to create amazing logos, banners or headers.
Curved Text, draw text along a (user defined) curve.
SiteTree object, display an overview of your website (SiteMap).
Login Tools/Page Password Protection.
Built-in support for jQuery UI: Accordion, Tabs, Dialog, DatePicker, AutoComplete, jQuery Button.
Site Search, easily add site search functionality to your website.
News Viewer object. Display RSS feeds (local or from another website), Twitter messages, Flickr images, Myspace blogs etc.
RollOver Text, displays a text banner over image on mouse over. Includes cool slide and fade effects.

New in version 8.0:

Version 8.0 has more than 150 new features and improvements. Please read the document 'whatsnew.txt' for all the details.
Added theme manager to create themes for jQuery widgets and other elements directly from within the software .
Added HTML5 support: HTML5 doctype, native HTML5 form validation, use <canvas> for shapes and other drawing tools.
New HTML5 input types (editbox): color, date, datetime, email, month, number, range, search, tel, time, url, week.
Plus: HTML5 audio/video, support for Web Storage in forms, new HTML5 events, YouTube HTML5 support etc.
Added CSS3 support: Rounded corners, Gradient backgrounds, Opacity, Box shadow,
PhotoGallery now has 'Polariod mode' this uses CSS3 and has a few cool effects like rotated or variable sized polariods and shadows.
@font-face support, now you can (web unsafe) embedded fonts in your page!
Added SVG support: optional output as SVG for shapes, clipart, textart and other drawing tools
WYSIWYG Web Builder now has a basic built-in Content Management System to allow online content editing!
Improved text editor: faster, many new background styles, indent, border, padding, overflow, line height, character spacing
Redesigned UI themes and high quality icons for a fresh new look.
Added Error reports to Tools menu. This tool can help you find common problems on a page (like duplicated IDs, invalid filenames).
New tools for mobile design: detect mobile devices, configure alternative for flash etc.
Added generic background effects (transparent, solid, gradients, patterns, textures) to most objects.
Added the ability to set individual colors, width and styles for borders.
Added many improvements to the login tools (add custom fields, email verification option, edit profile object).
Added new features to the News Feed Ticker: date formatting, sort options, new animations, new 'Ticker' viewer type etc.
Added Mega Menu object. Yet another menu to enhance your website. 
CSS Menu which allows you to create fancy menus (glossy, glass, gradients etc) without using JavaScript or images!
Added Carousel object.
Many new Slide Show options.
Improved Site Search functionality.
The Asset Manager can now display orphan files with the ability to remove these files from the project folder.
New redirect scripts 'Time redirect', 'Date redirect', 'Mobile redirect'
Social Network Bookmarks adds social network share icons to your website. (facebook, twitter, stumbleupon and many more!!!)
Added Auto responder option to form. Sends a message to the user after the forms has been submitted.
Added 'Docking mode', this allows you to dock a layer to the edges of the browser window. 
Added 8 new gradient styles: Glass, Glossy, Vista, Lineair from Center, Diagonal from corners. These are available for most objects!
Added 'Hover mode' to Shapes, TextArt and Clipart. Adds the possibility to display a different background and border color on hover.
and much much more!

Also take a look at the list of (free) extensions to make WYSIWYG Web Builder even more powerful!