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aria2 vs Axel: catalog facts
aria2	Axel
Free Free and open source under the GPL 2.0.	Free Free and open source.
Windows, macOS, Linux, Android, Command line	Linux, Command line
Downloads one file from HTTP, FTP and BitTorrent sources at the same time Verifies Metalink chunk checksums while downloading, not after	Multiple connections per file for faster downloads Small and lightweight
Command line only; every graphical interface is a separate project The option list is long and the defaults are conservative	Command line only, no graphical interface No browser integration
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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