MuteTab - Better tab muting in Chrome
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
Smart Tab Mute - Ensures that only one tab is playing sound at the same time
Alfred - Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.
Mute Intercom - Mute annoying sounds from Intercom 🔕
Listary - Listary is a revolutionary search utility for Windows