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Hypostasis-Cat

Hypostasis-Cat/HypoMux

Windows tool that aggregates multiple network adapters (Ethernet, Wi-Fi, hotspot, USB tethering) to split download traffic across connections.

Open-source alternative to:SpeedifyConnectify Hotspot

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Last commit
5 days ago

What is it?

HypoMux is an open-source multi-NIC aggregation and traffic-splitting tool for Windows. It distributes multi-connection downloads across several active network adapters, so Ethernet, Wi-Fi, phone hotspot or USB tethering can carry traffic at the same time.

It aggregates independent connections rather than splitting a single TCP connection, so it suits high-concurrency downloads such as Steam, IDM, game launcher updates and browser large-file downloads. The speed of a single connection is still limited by that connection's own link.

Two modes are offered: a system proxy mode with local HTTP/HTTPS and SOCKS5 ports, and a virtual adapter mode built on Wintun and sing-box with WFP, DNS and routing rules. Routing rules can pin traffic by process, domain or IP/CIDR to aggregation, direct connection or a specific adapter. The desktop UI runs without administrator rights, while a separate Core service handles privileged network operations.

Key features

  • 01Distributes independent connections across multiple active adapters for combined throughput.
  • 02Offers system proxy mode and virtual adapter mode (Wintun + sing-box).
  • 03Routing rules by process, domain or IP/CIDR, with aggregate, direct or per-adapter targets.
  • 04Supports DoH and custom DoT encrypted DNS.
  • 05Shows per-adapter speed, connection count and diagnostic checks.
  • 06Restores modified system proxy and network settings when stopped or uninstalled.

Use cases

  • Speeding up IDM or browser downloads on a machine with wired and Wi-Fi connections.
  • Accelerating Steam or other game launcher updates across multiple links.
  • Routing latency-sensitive games or calls to a direct connection while bulk traffic is aggregated.

Topics

FAQ

What is HypoMux?
Windows tool that aggregates multiple network adapters (Ethernet, Wi-Fi, hotspot, USB tethering) to split download traffic across connections. HypoMux is an open-source multi-NIC aggregation and traffic-splitting tool for Windows. It distributes multi-connection downloads across several active network adapters, so Ethernet, Wi-Fi, phone hotspot or USB tethering can carry traffic at the same time.
Is HypoMux free to use? What license does it have?
HypoMux is open source under the AGPL-3.0 license. Check the license terms before using it in commercial products.
Is HypoMux still maintained?
Actively maintained. The last commit to HypoMux was on Oct 15, 2026.
What can I use HypoMux for?
Speeding up IDM or browser downloads on a machine with wired and Wi-Fi connections. Accelerating Steam or other game launcher updates across multiple links. Routing latency-sensitive games or calls to a direct connection while bulk traffic is aggregated.
Where can I get HypoMux?
The source code and installation instructions are on GitHub: https://github.com/Hypostasis-Cat/HypoMux

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