When comparing Launchy vs Rofi, the Slant community recommends Rofi for most people. In the question“What are the best Linux app launchers?” Rofi is ranked 1st while Launchy is ranked 13th.
Ranked in these QuestionsQuestion Ranking
Pro .deb files available for Debian based distros
For those using Debian based distros Launchy is very easy to install as their website has 32 and 64bit .deb files available. For all other diistros Launchy will have to be compiled from source.
Pro Easily themed with many available on the web
Launchy can be easily themedby placing themes into the Launchy theme folder and then selecting that theme from within the apps settings. There are also many user created themes available which is great for those that want their launcher to match the rest of their OS's theme.
Pro Can run commands
<code>run: st toxic</code> Runs a tox client in the terminal emulator "st".
<code>run: maim ~/Images/screenshots</code> take a screenshot with "maim" and save it to given location.
Pro Minimalist design, yet can use customizable themes
Also it's easy to make use of your own "plugin" (scripts).
Pro Great keybindings
They seem to be emacs based.
Pro Resource efficient
Pro Case insensitive
Instead of having to worry about case sensitive characters, you can use caps or lowercase wherever you please without causing any issues.
Pro Clipboard history extension
Greenclip adds clipboard manager functionality.
Pro Greatly maintained
Pro No resource usage when you're not using it
Other launchers often run in the background to be prepared for showing the launcher. Rofi doesn't do this. On the negative side this means it can launch slower (depending on your environment and setrtings).
Pro Easily switch windows without mouse
Launchy was last updated in 2010.
Con Small selection of plugins
The official plugin page on Launchy's homepage hosts just 11 plugins.
Con One of the most poorly documented launchers for new users
Install Rofi and google how to actually start or use it. Sure, there's plenty of Arch users screaming about dmenu, showing off editing of config files, integrating it with i3 or this or that, but how do we actually:
1) Start it.
2) Use it.
Rofi seemed intriguing, because it was ranked #1 on slant, but it may be better to use a third party dock in Xfce, because there's simply no resource on how to use Rofi for a complete newbie.
Con Issues when Caps Lock is active
When typing with Caps Lock activated, it's impossible to use Backspace. Rofi eventually freezes in this scenario.
Con Issues on Wayland
If you use Wayland, then Rofi may fail to grab keypresses or inputs, or may fail altogether. Works fine if you switch to X11.
Con Lacks keywords to switch between modes
You can switch between modes with ctrl+tab by default, but if you have a lot of modes this is slow.
Con Lacks a default "blank slate" launch behavior
Unlike Ulauncher, Albert and similar launcher there's no generic "enable everything" launch behavior. You can configure Rofi to do almost this, but it's whitelist based, so you'd have to reconfigure it if you install or uninstall a plugin, and Rofi has to know if the plugin should be part of the combi mode or treated as an isolated mode.
Con Lacks conventions for plugins
For example the calc mode/plugin will output the result to stdout by default, while the emoji mode/plugin will add it to the clipboard, and there's no good way for plugins to add additional config option. The plugins can check your CLI arguments, but you can't put those in your config instead to make them persist in a convenient manner, so you have to pass them as arguments every time, and multiple plugins could implement the same cli argument to mean different things.