An auto completion or suggestion script is a valuable way that can make completing online forms easier for your visitors. Auto Completion has become one of the coolest user interaction element in websites lately and most of the famous sites from google, youtube to msn have auto completion based search boxes.
In this article I have posted very useful 15 Auto Completion Scripts to use in you projects and that will help you enhance your user experience. which you can easily incorporate into your future designs. If you are interesting in our older articles on password management tools, twitter analytics tools and useful WYSIWYG editors, then click on these links and download your favorites.
1. A Fancy Apple.com-style Search Suggestion
Apple is known to create beautiful products (next to the needed functionality of course). We’re trying to recreate the effect from that website by creating a fancy apple.com-style search suggestion.

2. AutoCompleter (v1.1)
This AutoCompleter script for MooTools provides the functionality for text suggestion and completion.

3. Ajax-Driven JavaScript ComboBox with Autocomplete
dhtmlxCombo can be converted from existing instances of HTML Select, or populated with JavaScript. With Ajax data loading, it can get the list of values dynamically from the server datasource.

4. AutoCompletion Script for World Places Using Google Geocode API
This auto completion script is very useful. It will auto suggest world places based on user input.

5. Dialog: Using AutoComplete in a Dialog
This example explores issues surrounding the placement of an AutoComplete control within the context of a Dialog control.

6. AutoSuggest jQuery Plugin
AutoSuggest is a very lightweight jQuery plugin that makes auto-completing extremely easy.

7. Ajax AutoComplete for jQuery
Ajax Autocomplete for jQuery allows you to easily create autocomplete/autosuggest boxes for text input fields.

8. AutoComplete 1.2 Scriptaculous Example
In this example, developer use the same dictionary and used in the WordLadder coding challenge. Simply start typing a word and the suggest tool will give you results.

9. Mootools Autocompleter
This is a lightweight autocompleter plugin for Mootools. It’s designed to be attached to text input fields and provide them with a flexible autocompletion mechanism.

10. jQuery Tag Suggestion
If you’re familiar with del.icio.us you will be familiar with the tag suggesting as-you-type support.

11. jQuery Autocomplete Mod
This is modification of Dylan Verheul’s jQuery Autcomplete plug-in.

12. ASP.NET AJAX AutoComplete Control Demonstration
ConvincingMail AutoComplete is an ASP.NET AJAX extender that can be attached to any TextBox control, and will associate that control.

13. Yet Another AutoComplete Script (YAACS)
The Yahoo UI autocomplete script (which is live as of this writing), but this can also be slow at times and it requires loading a number of additional YUI scripts that we don’t use anywhere else in the site.

14. Ajax Autocomplete with jQuery and PHP
In this post we’ll implement a autocomplete script, that uses jquery, ajax, PHP and MySQL for a smooth and easy to configure autocomplete solution.

15. jqac
There is a lot of auto-complete/suggest javascript libraries. In this library I used power and simplicity of jQuery and different javascript ideas and techniques.

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It’s a very nice idea to collect sush useful scripts in a post!
Thanks for sharing Abie.