This is an alt+space launcher for Windows and macOS.

ueli logo


This is a keystroke launcher for Windows and macOS.

ueli screenshot

Table of contents


Installer / Zip

Note: because the executables are not signed Windows will probably prevent you from executing the installer or the program itself. You can click "Run anyway" to install/run the program.

  • Download the latest version here
  • Run the installer or unzip
  • Run the application

Quick tutorial

  • Press the global hot key to show/hide the window (default is alt+space)
  • Start typing a program name
  • Press Enter to launch the program


Program search

Feature Program search

  • You can search for installed programs
  • Use the arrow keys to scroll up and down
  • Presss Enter to launch the selected program

Files and folder search

Feature home folder

  • You can search files and folders in your home folder
  • Press Enter to open the selected file/folder

Open URLs with your default web browser

Feature URL

  • Type in a URL
  • Press enter to open the URL with your default web browser

Open default mail program

  • Type in a email address
  • Press enter to open your default mail program with an empty email to the specified email address

Feature email

Web search engines

Feature web search engines

  • You can customize web search engines like this:
"webSearches": [
        "icon": "<svg>...</svg>",
        "name": "Google",
        "prefix": "g",
        "url": "https://google.com/search?q="

Now you can type in g?{your search term} to launch the web search engine in your default browser.

Default web search engines:

Prefix Web Search Engine
d DuckDuckGo
g Google
gi Google Images
l Linguee
w Wikipedia
yt YouTube

Execute commandline tools

Feature commandline

  • Start a commandline tool with the > prefix
    • Example: >ipconfig /all
  • Stop an executing commandline tool with Ctrl+c

Note: you can not interact with the commandline tool. You only see the output.

Browse file system

Feature file browser

  • You can browse your file system by typing in a filepath
    • Example: C:\Users or /Applications
  • Press Enter to open the file or folder
  • Press Tab for autocompletion


Feature calculator

  • Calculate simple math, matrix, symbolic function, convert unit and a lot more.
    • Example:
      • 23 * 24 / 2 + (6 * 7) ^ 2
      • 1 km/h to mile/h
      • a = [1, 2, 3]; a * 2

Custom commands

Feature custom commands

  • You can customize custom commands to
    • Start command line tools
    • Open files/folders
    • Launch programs
"customCommands": [
        "name": "ping",
        "executionArgument": "start ping -t",
        "icon": "<svg>...</svg>"
        "name": "Data",
        "executionArgument": "start \"\" \"C:\\Data\""
        "name": "code",
        "executionArgument": "start \"\" \"C:\\My-Programs\\Visual Studio Code\\Visual Studio Code.lnk\""

Keyboard shortcuts

Keyboard shortcut Description
Ctrl+o Open the selected program or file at it's location
ArrowUp Scroll up
ArrowDown Scroll down
Shift+ArrowUp Browse user input history up
Shift+ArrowDown Browse user input history down
F6, Ctrl+l Set focus on user input
F1 Get help


To check if a new version is available right click on the tray icon. The first item in the context menu shows you if there is an update available or if you are running the latest version. If there is an update available click on "Download and install update".



All settings are stored in ~/ueli.config.json. You can modify this file to change the default values.


  • applicationFileExtensions Array of string - Represents the file extensions which are used to find applications in the specified folders
  • applicationFolders Array of string - Represents the folders which are scanned for applications
  • autoStartApp Boolean - If the app should be started automatically when you log in
  • colorTheme String - Defines the color theme.
  • customCommands Arraay of customCommand objects - A list of custom commands
    • executionArgument String - Represents the execution argument for the custom command
    • name String - Represents the displayed name for the custom command
    • icon String - (Optional) Represents the svg icon for the custom command. If no icon is set default icon is used.
  • hotKey String - Represents the hotkey to show/hide the window. Available hot keys.
  • maxSearchResultCount Number - Maximum number of search results to be displayed
  • rescanInterval Number - Interval in seconds to rescan the application folders
  • searchOperatingSystemSettings Boolean - If operting system settings and commands should appear in the search results
  • searchResultExecutionArgumentFontSize Number - Represents the font size of the search result execution argument in pixels
  • searchResultHeight Number - Represents the height of a search result box in pixels
  • searchResultNameFontSize Number - Represents the font size of the search result name in pixels
  • userInputFontSize Number - Represents the font size of the user input in pixels
  • userInputHeight Number - Represents the height of the user input box in pixels
  • webSearches Array of webSearch Objects - A list of web search engines
    • webSearch Object - Defines a web search engine
      • icon String - Represents the svg icon for the specific web search engine
      • name String - Represents the name of the web search engine
      • prefix String - Represents the prefix for your web search engine. For example if the prefix is g you can type in g?{your search term} to search
      • url String - Represents the url for the search engine to which the search term is appended to. For example https://google.com/search?q=
  • windowWith: Number - Represents the width of the main window in pixels

Color themes

Color themes

  • atom-one-dark
  • dark
  • dark-mono
  • light
  • light-mono


  • Add nice GUI to modifiy configuration
  • Notify user when update is available
  • Use vue components


Build status

Platform Build status
Windows Build status
macOS Build status

Code coverage

Coverage Status


  • Git
  • Node.js
  • Yarn


$ git clone https://github.com/oliverschwendener/ueli
$ cd ueli
$ yarn


$ yarn build
$ yarn start

Note: there is also a watch task $ yarn build:watch which watches the stylesheets and typescript files and transpiles them automatically if there are any changes.


Note: for debugging you need Visual Studio Code

Choose one of these debug configurations:

Debug configurations

Run tests

$ yarn test:unit
$ yarn test:integration

Code coverage

$ yarn test:unit --coverage


$ yarn package



Copyright (c) Oliver Schwendener. All rights reserved.

Licensed under the MIT License.

Example screenshot Example screenshot

Something missing? Edit this app.