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AB Download Manager vs Ninja Download Manager: catalog facts
AB Download Manager	Ninja Download Manager
Free Free and open source, supported by donations.	Freemium Free download with a paid NDM Pro version.
Windows, macOS, Linux, Browser extension	Windows, macOS
Multi-connection downloads Queues with a built-in scheduler	Multi-connection downloads with pause and resume Queues, scheduling and speed limits
Community support mainly through Telegram and GitHub Younger project than long-established download managers	Some features reserved for the paid Pro version Closed source
Downloadable app, Browser extension	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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