aria2c

Aria2c is a popular, open-source command-line download tool that supports downloading files from various protocols, including HTTP/HTTPS, FTP, BitTorrent, and Metalink. It is designed to be lightweight, powerful, and efficient, allowing users to download files faster and manage multiple downloads simultaneously.

Here are some key features of aria2c:

1. Multi-protocol support: aria2c can handle downloads from HTTP/HTTPS, FTP, SFTP, BitTorrent, and Metalink protocols, which makes it versatile for various types of files and sources.

2. Enhanced download performance: It incorporates dynamic segmentation and multi-connection technologies to accelerate download speeds, leveraging the full bandwidth capacity. It can split files into multiple segments and download them concurrently.

3. Error recovery and resume capability: If a download is interrupted or fails due to network glitches or other issues, aria2c can automatically resume the download from where it left off, saving time and bandwidth.

4. Command-line interface: As a command-line tool, aria2c provides a lightweight interface for running downloads, making it suitable for scripting or integration into other applications or workflows.

5. Bandwidth control and scheduling: It allows users to set download/upload speed limits and define the number of concurrent connections to optimize the use of available bandwidth. Scheduling downloads at specific times is also possible.

6. BitTorrent support: aria2c can handle BitTorrent downloads with features like selective file downloading, trackerless support, and DHT (Distributed Hash Table) implementation.

7. Remote control and JSON-RPC interface: It provides an interface to control aria2c remotely through JSON-RPC, enabling users to manage and monitor downloads from other devices or applications.

Overall, aria2c is a powerful and flexible command-line tool that excels in handling multiple protocols, enhancing download speeds, and providing advanced features for efficient file retrieval.