Alternatives to volumeHUD

Tool to control external monitor brightness & volume

Audio utility

UI replacement for volume, brightness and now playing controls

Enable Windows-like alt-tab

Adaptive brightness for external displays

Per-application volume mixer, equalizer, and audio router

Control the volume of Apple Music and Spotify using keyboard volume keys

Re-mounts write-protected NTFS volumes

System-wide audio equaliser

Sound and audio controller

Menu bar toolkit with keep-awake, system monitor and volume mixer

Per-app audio controls