Access everything with virtually zero effort. Run applications, open files or their paths, open bookmarks in your browser, search the web, calculate things and a lot more. See wiki for more information.
- Ulauncher provides instant search results. It also remembers your previous choices and automatically selects the best option for you.
Cerebro is an open source and free electron-based productivity software alternative to Alfred and Spotlight. It is focused on speed and good UI and UX. In most cases you don't even need to open another application, because you can see results right in Cerebro, like google...
GNOME Do allows you to quickly search for many items present on your desktop or the web, and perform useful actions on those items.
The program seems to be no longer updated. Last version, 0.95.3, released on November 2014, can be still downloaded from Launchpad.
Gnome Do vs Synapse opinions
Synapse, Kupfer, and Gnome Do are the three leaders in this category.
Gnome-Pie is a circular application launcher for Linux. It is made of several pies, each consisting of multiple slices. The user presses a key stroke which opens the desired pie. By activating one of its slices, applications may be launched, key presses may be simulated or files...