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aria2We use it

Lightweight command-line downloader for HTTP and BitTorrent with a JSON-RPC interface for automation.

Websitearia2.github.io ↗ CategoryVideo & Server Tools PricingFree, open source Our rating★★★★☆ 4/5 Last checkedOctober 2026

aria2 runs our download queue through its RPC interface. Keep its own concurrency limit equal to your app’s limit, or the extra jobs sit in aria2’s waiting list where your app can’t see them.

👍 Good

  • Fast
  • Scriptable via RPC

👎 Watch out

  • You build the management around it
Verdict: Great engine for automated downloads.

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