Apps with 'Compact' feature

sleek is an open-source (FOSS) todo manager based on the todo.txt syntax. It's available for Windows, MacOS and Linux.

Amberol is a music player with no delusions of grandeur. If you just want to play music available on your local system then Amberol is the music player you are looking for.

wZD is a powerful storage and database server, designed for big data storage systems with small and large files for mixed use and dramatically reduces count of small files for extend abilities any normal or clustered POSIX compatible file systems.