Compare software

Ninja vs jom: catalog facts
Ninja	jom
Free Free and open source.	Free Free to download from the Qt Project servers, with source code published.
Windows, macOS, Linux, Command line	Windows, Command line
Very fast incremental builds Works as a CMake backend	Runs independent nmake commands in parallel with a -j switch Works as a drop-in replacement for existing nmake makefiles
Build files are not convenient to write by hand Needs a higher-level generator for most projects	Windows only Only useful for projects that build with nmake makefiles
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.