CSS (Cascading Style Sheets) are now important elements for any website design. CSS is a simple way to style you sites font, colors, spacing etc. You don’t need to setup all this things again and again for all pages when you use CSS just call CSS file to all pages.
CSS files can be easily created on any text editor like Notepad, but it is not the best way to create CSS file. Here come CSS editors, which cut your, development time and provide all help to build CSS file easily. CSS editors are like WYSIWYG editor, which let you, know what you are doing it highlights the code and values to help you what you are doing.
We have listed some best free CSS editors which can help you to build CSS files easily.
5 Best Free CSS Editors
Stylizer
Stylizer helps you to create CSS files through its grid like and powerful CSS editing interface. It provides a real time editing environment and lets you adjust the colors, height, width, font size, padding, margin, or any other property of your page. Stylizer comes with many tools and automates processes such as CSS positioning, Image Replacement, CSS hacks, etc. 
Notepad++
Notepad++ is a powerful source code editor. It comes as a freeware and can be executed in the MS Windows Environment. Notepad++ has been written in C++ and is based on Scintilla which is a powerful and advance editing component. The use of STL and Win32 API enables it to provide a great execution speed, as well.
Simple CSS
Simple CSS is a powerful CSS Editor. It provides one of the easiest and the fastest method to create and modify Cascading Style Sheets. With Simple CSS, you can manage various CSS projects as well as import and export existing style sheets. Presently it is available for Windows and Mac OS x operating systems.
KompoZer
KompoZer is a comprehensive web authoring system. It supports web file management as well as web page editing. Even non-technical users will find KompoZer extremely easy to manage. With KompoZer, you can easily create professional looking and attractive websites. It comes with a powerful CSS Editor, XFN, Forms, FTP site manager and much more.
Free CSS Toolbox
Free CSS Toolbox is free and powerful CSS editing software. With Free CSS Toolbox, you can quickly create and modify CSS code. It comes with features such as syntax highlighting and auto-complete which makes editing of CSS really easy and fast too. It includes a number of tools for the enhancement of CSS code like CSS Validator, CSS Compressor, and CSS Formatter.
If you know some more best free CSS editors then please don’t forget to comment and suggest some useful tools.
I use free PHP/HTML/CSS/JavaScript editor – Codelobster PHP Edition.
It also has HTML code Inspector like FireBug has.
currently i’m using sublime text 2, very recommended text tools for coding
get it here :
http://www.sublimetext.com
Now, I am using a Notepad++ CSS editor which is a powerful source code editor. It is a freely available and have a great execution speed.