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Internet Download Accelerator vs Xtreme Download Manager: catalog facts
Internet Download Accelerator	Xtreme Download Manager
Freemium Free edition available, with a paid Pro version.	Free Free to download and use from GitHub.
Windows	Windows, Linux, Browser extension
Segmented downloads over HTTP, HTTPS and FTP Resumes broken downloads	Downloads files in several parts at once Resumes broken downloads
Windows only Some features reserved for the paid Pro edition	The new version is still an experimental beta Video grabbing depends on how each site delivers its video
Downloadable app	Downloadable app, Browser extension
Closed source	Open 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 September 24, 2026

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