Let’s pretend that this is a broken link. Can you imagine that when your users click this link, instead of them being redirected to a 404 error on your site, a friendly modal message pops up on your current page saying that it’s not available?. In that same message box you can then give them a sense of direction so that they’re not lost – you could ask them to click on a contact link to report the link’s broken, offer an alternative mirror, recommend they do a site search for the file or just say that you’re experiencing hosting issues and the file will be back up soon. The choice is completely up to you. The benefit of Catch404 is that you can offer your users a better experience when errors are encountered on your site.

Requirements: jQuery
Website | Demo | Download
License: GPL
Catch404 – A jQuery plugin
Tags: Free, jQuery, Tools
FlareVideo is an open source and free HTML5 video player that falls back to Flash for incompatible browsers.
The player can be customized easily using CSS-HTML and JS with its theming support.

Features
- HTML5 video with Flash fallback
- Easy CSS/HTML/JS customization and theming
- Full screen support
- Completely open source and free for commercial use
Requirements: jQuery
Website | Demo | Download
License: MIT
Tags: Flash, HTML5, jQuery, Video
Cloud Zoom is a jQuery plugin comparable to commercial image zoom products such as Magic Zoom. Compared to the popular jQZoom plugin, Cloud Zoom is smaller, has more features and more robust compatability across browsers.
Features
- Works with most browsers (tested on IE6+, Firefox, Chrome, Opera, Safari).
- Easy integration with basic valid HTML.
- Small 6Kb (minified) script.
- Smooth zoom movement.
- Gallery mode.
- Tint, soft focus and inner zoom features.
- Degrades gracefully with Javascript turned off.
- Fully accessible with no CSS or text only browsers.
- It’s completely free.

Requirements: jQuery
Website | Demo | Download
License: MIT
Tags: Effects, Free, Gallery, jQuery, Open Source
TomatoCart is a new and open source shopping cart solution. It is forked from osCommerce 3 as a separate project and is free to use and modify. It use Web2.0 technology such as Ajax and Rich Internet applications (RIAs).
Tomato Cart’s application offers to the user a similiar experience of desktop Operating System. Additionally, it supports multi-window operations and that enables users to work with several modules simultaneously.

Requirements: —
Website | Demo | Download
License: —
Tags: Ajax, Ecommerce, Free, MySQL, Open Source, PHP
Inspired by 1kbgrid.com. Developed with love by Girlfriend’s overconfident and pretty good looking team of web developers. Tiny Fluid Grid ships with a index.html with demo code, and the grid.css containing the CSS for the grid you created.

Requirements: —
Website | Demo | Download
License: Creative Commons Attribution-Share Alike 3.0 US License
Tags: CSS, Framework, Free, Open Source, Tools