Netbeans - NetBeans IDE 7.0. Develop desktop, mobile and web applications with Java, PHP, C/C++ and more. Runs on Windows, Linux, Mac OS X and Solaris. NetBeans IDE is open-source and free.
VFront - VFront is a dynamic front-end for MySQL or PostgreSQL databases written in PHP and Javascript.
Aptana Studio - The world’s most powerful open-source web development IDE just got better. Rebuilt from the ground-up. It's now much faster, customizable and includes new features to help you be more productive.
Scriptcase - Powerful web low-code RAD platform. Unleash the power of web development and boost your productivity time creating delightful projects with magnificent BI solutions.
PhpStorm - Professional IDE for PHP and Web Developers
nuBuilder Forte - Low-code, open-source RAD development tool for creating web-based database applications.