Here is a selection of search engine optimization tools that allow you to do all kinds of things. I do recommend you checking out the website speed analyzer below.
- Color & Font Picker
- CSS Validator
- CSS Generator
- CSS Generator (Advanced)
- Drop Down Menu Maker
- HTML Validator
- Keyword Density Analyzer
- Popup Maker
- Javascript Mouseover Maker
- Link Checker
- Link Popularity Comparison Tool
- Meta Tag Creator
- Meta Tag Viewer
- Table Maker
- Table Maker (Advanced)
- Link Extractor
- HTTP Headers
- HTML Optimizer
- HTML Encrypter
- htaccess URL Rewrite
- Spider View
