Synapse - Synapse is a semantic launcher written in Vala that you can use to start applications as well as find and access relevant documents and files by making use of the Zeitgeist engine.
Ditto - Easy to use interface; Search and paste previous copy entries; Keep multiple computer's clipboards in sync; Data is encrypted when sent over the network; Accessed from tray icon or global hot key; Select entry by double click, enter key or drag drop…
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
ClipboardFusion - ClipboardFusion makes it easy to remove clipboard text formatting, replace clipboard text or run powerful macros on your clipboard contents! You can even sync your clipboard with other computers an...
dmenu - dmenu is a dynamic menu for X, originally designed for dwm.
Maccy - Lightweight open-source clipboard manager for macOS