ThreadWeaver is a system library initially developed for KDE Software Compilation 4[2] and later refactored for KDE Frameworks 5.

[3] ThreadWeaver allows developers to easily take advantage of multi-core processors and multithreading.

In ThreadWeaver the workload is divided into individual jobs, then relationship between jobs (what order they should be completed or which has a higher priority); from that ThreadWeaver will work out the most efficient way to execute them.

Krita has implemented visual filter previews using ThreadWeaver to prevent GUI lockups.