List of Useful jQuery Plugins: jQuery, JavaScript

I viewed each of the jQuery plugins in the jQuery plugins repository. I couldn't believe how many there were! So I decided to make this master list to weed out any plugins that were either broken or I didn't find any practical application for. You will notice I added, "EXCELLENT" to the plugins that I thought were exceptional.

• Accessibility Stylesheet and text size switcher.
• Accordion Accordion interface with a few variations.
• AlphaNumeric Prevent users from inputing special characters.
• Ajax File Upload Loading graphic displays while file is uploaded.
• appendDom Write HTML with JavaScript, great for displaying Ajax results.
• appendText Converts text into post friendly html.
• blockUIEXCELLENT Create a message overlay while blocking user interaction on elements or the entire page.
• BogoFolders View text through a 'file menu' interface.
• BogoTabs Basic tabbed interface.
• Bubble Demo highlights selected table rows in groups of tables..
• Calendar Aids date entry.
• Checkbox manipulation Select, unselect and toggle checkboxes.
• ChiliEXCELLENT Syntax highlighting for displaying code on webpages.
• Choose Component Select data from a table row through a modal window.
• Click Menu Generates dropdown menus.
• clueTip Tooltips with many variations.
• Color Animations Add color animations to div backgrounds.
• Color Picker Pass in color choices and attach custom events to each color block.
• columnHover Highlight table rows and columns.
• columnManager Add, remove and toggle table columns.
• ContextMenu - Menus that show when you right click specified elements.
• Confirmer Adds a listener to check if user confirms their action.
• CycleEXCELLENT Add flash-like image effects to rotating image galleries.
• date picker Aids date entry.
• Delicious Read delicious bookmarks from a user to display on a webpage.
• Dimensions Get accurate window and document attributes across browsers.
• Equalize Columns Make columns the same height as the longest column.
• FCKEditor Plugin Adds a rich text editor to a textarea.
• Field Expand the ability to retrieve and set values in forms.
• FormEXCELLENT Change HTML forms to submit via Ajax.
• Gallery Viewer JavaScript image gallery.
• getUrlParam Function to get url parameters.
• Google Feed Plugin Display any RSS feed to a webpage.
• Gradient Adds a gradient to a div without needing an image.
• Grid Column Sizing Table column draggable resizing.
• Grid Row Sizing Expand and collapse table rows.
• hoverIntent Prevents unintended hover events.
• idTabs Add tabbed interface to a website.
• Impromptu Create modal windows and messages.
• jQuery Localisation Applies localisation packages based on the user's language preference.
• jBox UI dialog widget.
• jCalendar Aids selecting of dates inline on a page.
• jCarousel Lite Simple carousel for images and HTML content.
• jCodeViewer Syntax highlighting for displaying code on webpages.
• jdMenu Hierarchical Menu Generates dropdown menus.
• jEditable Live editing of elements on a webpage.
• jFeed XML feed parser.
• jPanView Replaces big images with a zoom viewer in HTML.
• jqDnR Drag'n'Resize elements on a page.
• jQMaps Interact with Google maps.
• jqModal Display notices, dialogs, and modal windows in a web browser.
• Treetable Make a tree view out of an HTML table.
• Tree ViewEXCELLENT Tree view controls.
• Suggest Add autocomplete to input fields.
• YAV Form validation library.
• jqUploader Provides a status bar for uploading images.
• jScrollPane Customize your scrollbars.
• jTagEditor EXCELLENT Turn a textarea into a tag editor.
• jVariations Create a control panel to manipulate elements on a page.
• Keyboard Navigation Dynamically determine which element to focus on based on it's position on the screen.
• labelOver Overlay labels over an input field.
• LavaLamp Navigation menu with a 'lava' effect.
• Lazy Load Only load images that are in the current window.
• Live Query Adds event listeners to elements.
• Masked Input Add mask to inputs to aid user data entry (phone numbers, etc).
• Media EXCELLENT Unobtrusive conversion of standard markup into rich media content.
• Extra selectors for JQuery Add more selectors to jQuery.
• Mousewheel Mousewheel event handler.
• Mousehold Event Add repeating event as the user holds down the mouse.
• Multiple File Upload Select multiple files one by one as it adds to a queue list.
• newsticker Create a fading news ticker.
• Password Strength Meter Indicator to show the strength of a users password.
• PopupWindow Creates an preview popup of destination link.
• Query String Object Useful for sending URL parameters.
• Select box manipulation Remove and add options from a select list or dropdown in many ways.
• selectCombo Tool for making dependant dropdowns with Ajax.
• Star Rating Generates star rating from input fields
• Grid Dynamic ajax grid control.
• slideViewer Image gallery as slides.
• Spoilers Hide content behind an image until user action is taken.
• tableHover Row and column highlighting with variations.
• tableFilter Search box is added to each column header to filter table.
• tablesorter Client side table sorting.
• Taconite EXCELLENT Easily make multiple DOM updates using the results of a single AJAX call.
• Textgrad Add gradients to whole blocks of text.
• Time Entry Sets an input field up to accept a time value.
• Tooltip Add tooltips from title page.
• Validation EXCELLENT Add live validation to forms.
• WYMeditor EXCELLENT Web-based XHTML WYSIWYM editor.
• Zoomi Zoomable thumbnails.
• XSLT Transform XML/XSL from JavaScript.
• XAP Ajax library.