Powerful modern editors provide developers with syntax highlighting, diff, macros, plugins, code-snippets, preview-option and an integrated FTP-management tool.
These features can effectively support you during coding, debugging and testing. However, to make your life a little bit easier, you can use some more comfortable source-code editors with advanced editing features. To edit HTML- and CSS-code you only need a simple plaintext-editor - the rest depends on your skills and your creativity.
