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HTTP Downloader vs Internet Download Manager: catalog facts
HTTP Downloader	Internet Download Manager
Free Free and open source.	Paid Paid licence after a 30-day free trial.
Windows, Browser extension	Windows, Browser extension
Lightweight native Windows program Browser extensions for Chrome and Firefox	Dynamic segmentation for faster downloads Resumes interrupted downloads
Windows only Handles HTTP and HTTPS downloads only	Paid after the trial period Windows only
Downloadable app, Browser extension	Downloadable app, Browser extension
Open source	Closed source
License: GPL-3.0	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 24, 2026	Official website Full listing and sources Checked September 23, 2026

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