TaffyDB is an open source Javascript library for your browser which acts as a thin (under 10k) data layer inside Ajax applications. It’s got sorting, looping and advanced query capability.
It works with simple Javascript centric syntax and it’s compatible with most major Ajax libraries, including, YUI, JQuery, and Dojo. Using Taffy you can easily create collections passing in an array of similar objects. You can implement find functionality as well as updates. You can insert, delete, and query against the data layer. Taffy isn’t visual so you will still need to code the user interface; however using Taffy does reduce the amount of code you will need. The download is available for free.
TaffyDB.com In Their Own Words
“Taffy DB is a free and opensource JavaScript library that acts as thin data layer inside Web 2.0 and Ajax applications.”
Why TaffyDB.com It Might Be A Killer
TaffyDB is like having an SQL database in your browser. It works well for Ajax apps and it’s light—under 10 kb. It also integrates with other libraries.
Some Questions About TaffyDB.com
How well does this work? 
