Surge is a high-performance, open-source Terminal User Interface (TUI) download manager built with Go, tailored for users who prefer a keyboard-driven workflow. Designed with both functionality and visual appeal in mind, Surge combines a sleek TUI with a powerful background headless server and CLI automation capabilities.

Features

• Optimized for Speed: Unlike conventional download managers that utilize a single connection, Surge is capable of opening up to 32 concurrent connections. This strategy segments files into chunks, enabling faster downloads through parallel processing.
• Smart Work Management: Surge employs intelligent "Work Stealing" where fast workers can take over tasks from slower ones, minimizing idle time and accelerating download completion.
• Multi-Mirror Downloads: Download from several sources at once, with built-in failover handling to ensure reliability and efficiency.
• Adaptive Worker Management: Continuously monitors download speeds and will restart slower connections to maintain optimal performance.
• Streaming Mode: Offers a sequential download option to facilitate media file previews while still downloading.
• Daemon Architecture: A single background engine can manage downloads from multiple terminal instances, enhancing productivity.
• Aesthetically Pleasing Interface: The TUI built with Bubble Tea and Lipgloss provides a modern, user-friendly experience.

Usage Examples

Surge accommodates two primary modes of operation: TUI (Interactive) and Server (Headless).

In TUI mode, initiate it simply by running:

surge

Queue downloads by entering URLs directly:

surge https://example.com/file1.zip https://example.com/file2.zip

For the server mode, start it as follows:

surge server start

Access detailed command options for seamless interaction with both modes, ensuring that all download tasks are efficiently managed.

Performance Benchmarks

When benchmarked against standard tools, Surge demonstrates significant advantages in download speed, achieving an impressive speed of 35.40 MB/s for a 1GB file, outperforming tools like aria2c, curl, and wget by substantial margins.

Browser Integration

Enhance the download experience with the Surge browser extension, compatible with Chrome, Edge, and Firefox. This extension allows downloads initiated from the browser to be sent directly to the Surge terminal, streamlining the process even further.

Surge is built with a focus on performance and user experience, making it an indispensable tool for anyone who downloads files regularly. For further discussions, community contributions, and insights, engage with the Surge community on GitHub.