Magento Developer Toolbar
Gives you quick access to enable / disable / clean / index the following:
- Enable Frontend Template Path Hints
- Enable Admin / Backend Template Path Hints
- Logs
- Merge Javascript
- Merge CSS
- Translate Inline
- Clean cache and / or Disable the cache
Magento Debug Toolbar
Gives you quick access to enable / disable / clean / index the following:
- Details Memory Usgae
- Displays all Models and Classes utilised to load the page
- Ability to enable profiling and view every individual SQL Query and the time take for each query
- Run each individual SQL query and view the output
- View Blocks and Template Path