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Internet Download Manager vs HTTP Downloader: catalog facts
Internet Download Manager	HTTP Downloader
Paid Paid licence after a 30-day free trial.	Free Free and open source.
Windows, Browser extension	Windows, Browser extension
Dynamic segmentation for faster downloads Resumes interrupted downloads	Lightweight native Windows program Browser extensions for Chrome and Firefox
Paid after the trial period Windows only	Windows only Handles HTTP and HTTPS downloads only
Downloadable app, Browser extension	Downloadable app, Browser extension
Closed source	Open source
License not stated	License: GPL-3.0
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.