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GNU Wget2 vs aria2: catalog facts
GNU Wget2	aria2
Free Free and open source under the GPL.	Free Free and open source under the GPL 2.0.
macOS, Linux, Command line	Windows, macOS, Linux, Android, Command line
Parallel connections and HTTP/2 make recursive mirroring much faster Keeps Wget's command line, so existing habits carry over	Downloads one file from HTTP, FTP and BitTorrent sources at the same time Verifies Metalink chunk checksums while downloading, not after
Not a complete drop-in replacement; some Wget options are missing Packaged separately from wget, so it is not installed by default	Command line only; every graphical interface is a separate project The option list is long and the defaults are conservative
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 21, 2026

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