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Bulk Media Downloader vs Stream Detector: catalog facts
Bulk Media Downloader	Stream Detector
Free The open-source extension is available without a license fee.	Free Free to use; the source is published on GitHub.
Browser extension	Browser extension
Finds media loaded by scripts, which link scrapers miss Filters by type and size before downloading in bulk	Detects HLS and DASH playlists and subtitle files Generates download commands for external tools
Cannot save encrypted or DRM-protected streams Firefox focused	Does not download streams itself Requires a separate command-line downloader
Browser extension	Browser extension
Open source	Open source
License: MPL-2.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 2, 2026

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