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GNU Make vs jom: catalog facts
GNU Make	jom
Free Free software from the GNU Project.	Free Free to download from the Qt Project servers, with source code published.
Windows, macOS, Linux, Command line	Windows, Command line
Rebuilds only the files affected by a change Works out dependency order automatically	Runs independent nmake commands in parallel with a -j switch Works as a drop-in replacement for existing nmake makefiles
Makefile syntax has quirks, such as required tabs Windows use usually needs an extra package or environment	Windows only Only useful for projects that build with nmake makefiles
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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