1. ADMINISTRATION MENU:
In Drupal 7, the administration menu toolbar has all the options of the default toolbar and besides this, it also exposes all the menu options without having to navigate through sub menus.
2. COLOR BOX:
with this module, you can easily create light boxes for images, forms, and content. It also supports the most commonly requested features like captions, slideshows etc.
3. DEVEL:
It is a collection of useful tools and various utilities. It has options like print arrays, print summaries of DB queries, log performance, summaries of node access etc.
4. CHAOS TOOL SUIT:
This module is helpful to developers and is a collection of APIs and tools. It has many helpful features for developers like Form wizard, dependent widget etc. I
5. CONDITIONAL STYLESHEETS:
With this module, themers can work on the issue of cross browser compatibility with Internet Explorer. It lets you to add stylesheets and target the browser via .info file.
6. FRONTPAGE:
This module helps you to designate different front pages for anonymous as well as authenticated users. This module eliminates the need of code and hence anyone can set this up.
7. @FONT-YOUR-FACE:
This module provides an admin interface to browse and apply web fonts to Drupal themes. The fonts are automatically loaded from selected sources and can be applied to the styles.
8. .MOBILOADER:
This module works with .mobi theme which is a special theme designed for mobile devices. This module can automatically detects and overrides the default theme with .mobi theme.
9. HTML5 TOOLS:
This module is in development phase. It will help in developing Drupal sites designing HTML5. It has multiple tools.
10. NICE MENUS:
This module provides you with an easy drop-down menu solution. It has multiple menus that can be styled by overriding the default selectors.
11. MOBILE THEME:
This module helps in switching themes. It lets administrators to designate theme to be used with mobile devices.
12. NOGGIN:
This module allows you to add a custom header image to default Drupal themes. By controlling from the page, you can add the header image to any of the default themes.
13. ORGANIC GROUPS:
With this module, you can allow users to create as well as manage their own groups. It is quite powerful and is a popular module with many options.
14. SEMANTIC VIEWS:
This module extends the functionality of Views. It simplifies the theming of views by making it easier to insert HTML markup for your Views rows and fields.
15. SWEAVER:
By using this module, you can make your themes editable by anyone. This provides an easy to use interface to the users to change their theme without making the use of CSS.
16. SKINR:
With the help of this module, a themer can define a set of reusable CSS styles. To make themes Skinr compatible, you need to modify them a bit.
17. STYLE GUIDE:
This module produces a visual reference page which helps you to check the styling for the theme. It saves a lot of time and helps you to do things quickly.
18. THEME KEYS:
This is another theme switcher that allows you to run multiple themes and automatically switch between them.
19. VIEWS:
With this module, you can enhance your controls over the listing of content items and you can also create custom lists.
20. PANELS:
This module lets you divide a page into various content areas and gives you control over content in each area.
