Supporting PHP, ROR and Python this is a serious tool. Although I have only used it for basic HTML, CSS editing I found that a breeze with helpful hints and colour coding of syntax. It’s going to be around for the long run as they just secured $7.8 Million in Funding. Its 100% free and monetises via its web app hosting platform.
An alternative to Photoshop its completely open source and has a plug-in available that converts the layout closer to Photoshop for an easy learning curve. A great way for aspiring web designers to start honing there skills.
For converting your video files into a web friendly format you cannot go past this one.
For pixel perfect designs you need a simple measurement tool like Caliper.
The essential coding environment just a few clicks away :>.
FTP browser that also supports, SFTP, WebDAV, Cloud Files & Amazon S3.
Google Analytics on your Dashboard.
MySQL database management app.
File sharing the way it should be :>. Great if you are often moving between the office, your home Mac and your MacBook.
A tiny app that makes screenshots of websites.