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aria2 is a lightweight multi-protocol & multi-source command-line download
utility. It supports HTTP/HTTPS, FTP, BitTorrent and Metalink. aria2 can
be manipulated via built-in JSON-RPC and XML-RPC interfaces. Its features
include:
- Multi-Connection Download.
aria2 can download a file from multiple sources/protocols and tries to
utilize your maximum download bandwidth. Really speeds up downloads
- Lightweight.
aria2 doesn't require much memory and CPU time. The physical memory
usage is typically 4MiB (normal HTTP/FTP downloads) to 9MiB (BitTorrent
downloads). CPU usage in BitTorrent with download speed of 2.8MiB/sec
is around 6%.
- Fully Featured BitTorrent Client.
All features you want in BitTorrent client are available: DHT, PEX,
Encryption, Magnet URI, Web-Seeding, Selective Downloads and Local Peer
Discovery.
- Metalink Enabled.
aria2 supports The Metalink Download Description Format (aka Metalink
v4), Metalink version 3 and Metalink/HTTP. Metalink offers the file
verification, HTTP/FTP/BitTorrent integration and the various
configurations for language, location, OS, etc.
- Remote Control.
aria2 supports RPC interface to control the aria2 process. The supported
interfaces are JSON-RPC (over HTTP and WebSocket) and XML-RPC.
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