Aria2

github.com/aria2/aria2 Download Managers Open-source projectOpen source

A lightweight command-line tool, aria2 downloads from multiple sources and supports HTTP and BitTorrent.

github.com/aria2/aria2
Aria2 homepage screenshot

About Aria2

aria2 is a lightweight, open source download utility that runs from the command line. It supports HTTP(S), FTP, SFTP, BitTorrent and Metalink. It can fetch a single file from several sources and protocols at once and tries to use the maximum available download bandwidth. The project describes it as cross platform, and the directory lists Android as the platform. The source states that the program comes with no warranty and must be used at the user's own risk.

Key features

  • Segmented downloading from multiple sources and protocols at the same time
  • Simultaneous downloads from HTTP(S), FTP, SFTP and BitTorrent sources
  • Metalink chunk checksum validation while a file is downloading
  • JSON-RPC over HTTP and WebSocket, and XML-RPC, for controlling downloads
  • Selective download of files within multi-file torrents and Metalink downloads
  • Download and upload speed throttling
Best for: Users who are comfortable with command-line tools and want to download files over several protocols from one utility.
Good for
  • Open source, with the source code maintained on GitHub
  • Described as lightweight in the directory listing
  • Supports several protocols, including BitTorrent and Metalink
Watch out for
  • Operated from the command line
  • Comes with no warranty and is used at the user's own risk

Aria2 at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Platforms
Android
Open source
Yes · Source code
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026

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Aria2 FAQ

Where is the aria2 source code maintained?
The source code is maintained on GitHub at https://github.com/aria2/aria2.
How often are new versions released?
MINOR updates ship on the 15th of every month. A release may be skipped if there have been no changes since the last release. PATCH releases may come between regular releases if security issues arise.
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