Advertise here via BSA Retina.js is an open source script that makes it easy to serve high-resolution images to devices with retina displays . When your users load a page, retina.js checks each image on the page to see if there is a high-resolution version of that image on your server. If a high-resolution variant exists, the script will swap in that image in-place.

Kod is a programmers’ editor for OS X

Goals and features
- Fully concurrent — loading files, syntax highlighting, etc is distributed across available CPU cores. Minimal waiting time.
- Integrated scripting environment based on Node.js.
- Written from scratch with modern OS X 10.6 APIs providing maximum OS integration while avoiding reinvention of the wheel.
- Sports a Chromium-like user interface where tabs can be torn off and moved between windows.
- Allows editing (although not saving, currently) remote files accessible over HTTP or HTTPS.
- [...]

ProcessWire is an open source CMS application that is built with PHP and simplicity in mind.

The application has a very low learning curve as there is no complexity and it is pretty developer/designer friendly considering it’s built to adapt to your way of doing things.

With the help of a jQuery-inspired API (a big “plus” for jQuery fans), it gives you the tools to reach data, but you make the markup.

Anything can be built with ProcessWire as all [...]

XRegExp is an open source (MIT license) JavaScript library that provides an augmented, extensible, cross-browser implementation of regular expressions, including support for additional syntax, flags, and methods.

XRegExp is fully compliant with the regular expression flavor specified in ES3 and ES5, and has been tested with Internet Explorer 5.5–8, Firefox 2–3.6, Safari 3–4, Chrome 1–4, and Opera 9.5–10.5. It uses feature detection for its cross-browser support—no browser sniffing.

Booklet is a jQuery tool for displaying content on the web in a flipbook layout. It was built using the jQuery library. It is licensed under both MIT and GPL licenses. Codrops has written a tutorial to show us how to use and customize it in order to create a virtual Moleskine notebook with jQuery Booklet.

ZABBIX is an enterprise-class open source distributed monitoring solution designed to monitor and track performance and availability of network servers, devices and other IT resources. It supports distributed and WEB monitoring, auto-discovery, and more. ZABBIX software is released under the GNU General Public License (GPL) version 2.

Zabbix offers advanced monitoring, alerting and visualisation features today which are missing in other monitoring systems, even some of the best commercial ones.

JobAppr is a simple job board software for every category site (includes bloggers, web publishers, industry associations, non-profit groups, etc.). Setup only takes minutes and you are up and running with a premium quality job board. Includes an admin panel to allow easy job listing management and customization.

Features & Benefits

* It’s 100% FREE
* Customize and Arrange Job Categories
* Accept Payments via PayPal
* RSS Feed for All Job Listings
* Set Job Price, Duration, and Highlight Price
* Customize Site Logo, Title, and [...]

SVGGraph is an object-oriented PHP library for creating simple PHP graphs, released as open source under the LGPL v3 license. Here are some examples of the different types of graph supported by SVGGraph. This library provides PHP classes and functions for easily creating SVG graphs from data. As of version 2.0, SVGGraph works with PHP 5 only, PHP 4 support has been dropped.

Vermis is an Open Source issue tracker and project management tool for software developers and project managers that has been created for improving quality of code, efficiency and speed of development. Designed as a standard web application written in PHP, it can be used on almost any platform and hosting service, including Windows, Linux and more.

Flogr is a flexible script that displays your flickr photos in a customizable photo gallery you host on your website. If you use flickr but want to have a different look and feel for your photo gallery you may like flogr. See it in action here.

Main Features

Customizable photoblog interface for your flickr photos
Display all flickr photos, only photos with certain tags or only certain photosets
Displays photo details, EXIF data, tags, geo location, and photo comments
Thumbnail viewer displays [...]