- Keyboard-driven application launcher and command interface
- Three-pane command structure (Object > Action > Argument)
- Smart abbreviation-based matching that learns from usage
- Hierarchical browsing — navigate into folders, contacts, music libraries with arrow keys
- The comma trick — select and operate on multiple items at once
- Customisable catalog — index anything for quick access
- Multiple interface styles (Bezel, Mini, Primer, and more)
- Keyboard triggers — execute any Quicksilver command via a custom hotkey without invoking the command window
- Mouse triggers — activate commands by clicking or moving to screen edges/corners, or dragging files to edges/corners
- Event triggers — automatically run commands in response to system events (wake from sleep, network changes, power state changes, app launch/quit)
- Gesture triggers — draw shapes with the mouse to activate commands
- Triggers can use proxy objects as inputs, enabling powerful single-keystroke workflows
- Current Selection — the selected text, files, or items in the frontmost application
- Current Web Page — the URL of the page open in Safari (or other browsers via plugins)
- Finder Selection — currently selected files in Finder
- Latest Download — the most recently downloaded file
- Currently Playing Track — the song playing in iTunes/Music
- Current Application — the frontmost application
- Clipboard Contents — whatever is on the clipboard
- Quicksilver Selection — the item currently in Quicksilver's first pane
- Additional proxy objects provided by plugins (Current Album, Current Artist, Current Playlist, Next Zoom Meeting, Network/Mounted/Removable Disks, etc.)
- Enable workflows like "move the latest download to a folder" or "email the Finder selection" with a single keystroke
- File operations — open, move, copy, rename, trash, compress/decompress
- File tagging, labels, comments, and Spotlight integration
- Template-based file creation
- QuickLook previews
- Append/prepend text to files
- Make files visible/invisible, lock/unlock
- Create aliases, symlinks, and hard links
- Open directories in Terminal
- Launch, quit, force quit, relaunch, hide applications
- Process manipulation — change priority, pause/resume, send signals
- Application menu bar access and command execution
- Open at login management
- Launch as root, launch a copy
- Compose and send emails directly from any context
- Send files as attachments without switching apps
- Integration with Mail, Gmail, Entourage
- Instant messaging via iChat and Adium
- Multiple recipients via the comma trick
- Subject/body formatting in compose
- Browse and search contacts by name, initials, or nickname
- Navigate into contact fields (phone, email, IM, address)
- Email, message, or call contacts directly
- Contact pictures displayed in interface
- 600+ built-in web searches (Google, Wikipedia, Amazon, IMDB, YouTube, etc.)
- Custom web searches for any website
- Browser bookmark and history access (Safari, Chrome, Firefox, OmniWeb, Opera)
- URL and email address recognition
- Search for selected text or clipboard contents via proxy objects
- Full iTunes/Music library browsing and playback control
- Browse by artist, album, genre, playlist
- iPhoto browsing and slideshows
- Image manipulation — scale, convert formats, batch processing
- Desktop picture management
- Screen capture
- Flickr upload with tags
- Clipboard history with configurable depth
- Persistent shelf for long-term item storage
- Numbered storage slots for quick access
- Text and image previews
- Text entry mode for arbitrary input
- Large type display
- Text-to-speech with custom voices
- Append/prepend to text files
- Calculator (bc and RPN via dc)
- Unit conversions
- Dictionary lookup and synonyms
- Sleep, restart, shutdown, lock screen
- Volume and audio device control
- Network location switching, WiFi network selection
- Display configuration (resolution, refresh rate, colour depth)
- Keychain password access
- Eject disks and close disk trays
- Fast user switching
- Expose and Dashboard commands
- Run shell commands and scripts
- Terminal and iTerm integration
- AppleScript and Automator workflow execution
- Services menu access
- Command line tool (
qs) - SVN operations (add, commit, checkout, status, log, update)
- 1Password — quick access to passwords
- QR Code — generate QR codes from text/URLs
- Emoji — access emoji characters
- Zoom — join meetings quickly
- Transmit / Cyberduck — FTP/SFTP client integration
- Viscosity — VPN control
- Remote Hosts — SSH and remote system access
- Notification Hub — macOS notification integration
- Remember The Milk — task management
- Google Calendar — create events from text
- YouTube Downloader — download videos
- Dash — developer documentation lookup