kcptun ☆
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Description:
Stable & Secure Tunnel based on KCP with N:M multiplexing and FEC
Type: Formula  |  Latest Version: 20251212@0  |  Tracked Since: Dec 19, 2025
Links: Homepage  |  GitHub  |  formulae.brew.sh
Stars: 14,321  |  Forks: 2,568  |  Language: Go  |  Category: Networking
Tags: tunnel network-acceleration low-latency udp vpn-alternative
Install: brew install kcptun
About:
Kcptun is a high-performance network tunnel that uses the KCP protocol to accelerate TCP and UDP traffic over unreliable links. It employs N:M multiplexing and Forward Error Correction (FEC) to reduce latency and packet loss, making it ideal for improving connection quality on unstable networks. Its primary value is providing a stable, secure, and fast tunnel for applications like gaming, streaming, and remote access.
Key Features:
  • KCP protocol for reduced latency and congestion control
  • N:M multiplexing for efficient connection handling
  • Forward Error Correction (FEC) for packet loss recovery
  • Encryption for secure data transmission
  • Cross-platform compatibility (Windows, macOS, Linux)
Use Cases:
  • Accelerating game connections and reducing lag over high-latency networks
  • Improving video streaming and VoIP call quality on unstable mobile or satellite links
Alternatives:
  • udp2raw – Focuses on tunneling TCP over UDP with raw encryption, while kcptun uses KCP for acceleration and FEC.
  • brook – A broader proxy/tunnel tool with multiple protocols; kcptun is specialized for KCP-based acceleration.
Version History
Detected Version Rev Change Commit
Dec 19, 2025 8:02am 20251212 0 VERSION_BUMP c7298ae3
Nov 18, 2025 11:06am 0 VERSION_BUMP 74819729
Nov 16, 2025 5:01am 0 VERSION_BUMP b05c3de3
Nov 13, 2025 8:01am 0 VERSION_BUMP e42b538a
Sep 11, 2025 5:26pm 0 VERSION_BUMP b3ced036
Dec 30, 2024 4:59am 0 VERSION_BUMP 135d2672
Nov 19, 2024 6:47pm 0 VERSION_BUMP 8fb41360
Nov 19, 2024 11:01am 0 VERSION_BUMP 2ee95c0f
Oct 31, 2024 1:45pm 0 VERSION_BUMP a288276d
Oct 31, 2024 12:46pm 0 VERSION_BUMP 56fcffd0
Sep 19, 2024 1:22pm 0 VERSION_BUMP 1b783d7b
Sep 19, 2024 12:40pm 0 VERSION_BUMP bfe36877
Sep 14, 2024 11:20am 0 VERSION_BUMP c5401a1e
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