zeal noun

1. a feeling of strong eagerness (usually in favor of a person or cause)
2. excessive fervor to do something or accomplish some end
3. prompt willingness

(from WordNet 3.0)

Zeal is a simple offline documentation browser inspired by Dash.

More screenshots (imgur)

For details about binary packages (currently available for Windows and Ubuntu) see downloads page. Also, the latest unstable builds are available here.

After installing Zeal, you need to download docsets. Go to File->Options->Docsets, select the ones you want, and click the Download button.

If you prefer to compile Zeal manually.

• Qt 5.2+
• X C Binding – keysyms (Ubuntu libxcb-keysyms1-dev)
• bsdtar is required for the built-in docset extracting to work
• libappindicator and libappindicator-devel for notifications
• you may need to install libqt5webkit5-dev and qtbase5-private-dev

To compile it, run qmake and make in the zeal directory. On Linux, a final make install is required to install icons.

You can limit the search scope by using ':' to indicate the desired docsets.

java:BaseDAO

You can also search multiple docsets separating them with a comma:

python,django:string

If you prefer, you can start with Zeal queries from command line, for this, use the option --query:

zeal --query python:bomb

• Issues
• Search enhancements - some ideas:
  • Allow selecting subset of docsets to search in (enable/disable docsets, docset groups)
  • Grouping of similar results (like overloaded functions)
• Code cleanup
  • Refactoring to reuse common code between ZealDocsetsRegistry and ZealListModel

You can use Dash's instructions for generating docsets.