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Top 14 C++ Bittorrent Projects
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aria2
aria2 is a lightweight multi-protocol & multi-source, cross platform download utility operated in command-line. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink.
Project mention: Faster and More Reliable Hugging Face Downloads Using aria2 and GNU Parallel | dev.to | 2025-03-22aria2: A lightweight multi-protocol & multi-source command-line download utility.
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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Project mention: Netflix will show generative AI ads midway through streams in 2026 | news.ycombinator.com | 2025-05-15
qbittorrent (qT) is a great client with equally great search capabilities. you'll want to install jackett along with it so you can search through a large swath of torrent sites from the qT search.
https://www.qbittorrent.org/
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Project mention: Building a BitTorrent client from the ground up in Go | news.ycombinator.com | 2025-02-24
It's not impossible, it's just hard to be better than libtorrent, otherwise a new client only makes sense as an exercise.
Arvid Norberg is hardly a "beginner developer", yet look how hard it is to make a performant implementation of uTP: https://github.com/arvidn/libtorrent/issues/3542
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Project mention: Why is there no P2P streaming protocol like BitTorrent? | news.ycombinator.com | 2025-04-14
Bittorrent already works fine for streaming:
https://github.com/johang/vlc-bittorrent/
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
C++ Bittorrent discussion
C++ Bittorrent related posts
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Windows Memory Mapped File IO
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RCE Vulnerability in QBittorrent
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QBittorrent: Open-Source, Lightweight, and Feature-Rich BitTorrent Client
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QBittorrent: Lightweight, Open Source BitTorrent Client with No Ads
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New release for rTorrent after 5 years
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RTorrent Release Version 0.10.0
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Running Man E683 <Suk Jin's Early 60th Birthday Trip> | 231210
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A note from our sponsor - InfluxDB
www.influxdata.com | 16 Jul 2025
Index
What are some of the best open-source Bittorrent projects in C++? This list will help you:
# | Project | Stars |
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1 | aria2 | 38,158 |
2 | qBittorrent | 32,023 |
3 | qBittorrent-Enhanced-Edition | 23,006 |
4 | libtorrent | 5,603 |
5 | rtorrent | 4,476 |
6 | btfs | 3,923 |
7 | picotorrent | 2,700 |
8 | libutp | 1,132 |
9 | vlc-bittorrent | 443 |
10 | porla | 245 |
11 | libtorrent4j | 238 |
12 | openwebtorrent-tracker | 76 |
13 | Envy | 52 |
14 | server | 51 |