alibaba/xquic

Health v2 · maintenance only

Adoption not part of the score

1915 stars · 402 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

XQUIC is Alibaba's cross-platform C library implementing the IETF QUIC and HTTP/3 protocols for both client and server use. It supports QUIC v1 and draft-29, HTTP/3 with QPACK, pluggable congestion control (NewReno, Cubic, BBR, BBRv2), multipath QUIC, FEC, and QUIC-LB, with TLS integration via BoringSSL or BabaSSL.

Use cases

• implement an http/3 server in c
• add quic transport to a mobile app
• build a quic client with 0-rtt connection setup
• experiment with multipath quic and fec
• integrate bbr congestion control into a custom transport
• test quic interoperability against other implementations

When to choose

• you need a production-tested QUIC/HTTP-3 library in C for servers or mobile clients
• you need multipath QUIC, FEC, or QUIC-LB features not yet standardized
• you need broad platform support including Android, iOS, HarmonyOS, Linux, macOS, and Windows
• you want pluggable congestion control and TLS backends

When to avoid

• you want a higher-level language binding or an off-the-shelf HTTP client application
• your project only needs HTTP/1.1 or HTTP/2 over TCP
• you prefer a Rust or Go QUIC stack with memory safety guarantees

Facets

library · maturity active

http-server http-client networking security cryptography networking web-development performance developer-tools windows cross-platform cpp quic http3 tls13 multipath-quic qpack 0-rtt congestion-control ietf c-library linux macos android ios

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