noq

General purpose implementation of the QUIC transport protocol in pure Rust. Noq is built as an async-friendly API in the noq crate on top of a sans-io protocol library in noq-proto.

Noq started out as a fork of the excellent Quinn project. The main focus of development has been towards adding support for more QUIC (draft) extensions:

• QUIC Multipath
• QUIC Address Discovery (QAD)
• Using QUIC to traverse Nat's (QNT)

Features

• Easy to use futures-based async API.
• Client and server server functionality.
• 0-RTT and 0.5-RTT data support.
• Ordered and unordered stream reads.
• Custom and zero-length connection identifiers.
• Fully pluggable crypto API with a Rustls implementation using ring or aws-lc-rs provided by default for convenience.
• Broad platform support, including Linux, Windows, macOS, android, iOS and wasm.

Standards

The noq library aims to be correct implementation of various QUIC standards:

• Supports the core QUIC specifications:
  • RFC 8999 - Version-Independent Properties of QUIC.
  • RFC 9000 - QUIC: A UDP-Based Multiplexed and Secure Transport.
  • [RFC 9001 - Using TLS to Secure QUIC].
  • RFC 9002 - QUIC Loss Detection and Congestion Control.
• The standardised QUIC extensions:
  • RFC 9221 - An Unreliable Datagram Extension to QUIC.
  • RFC 9287 - Greasing the QUIC Bit.
  • RFC 9368 - Compatible Version Negotiation for QUIC.
• Draft extensions:
  • qlog: Structured Logging for Network Protocols.
  • QUIC Multipath.
    • With experimental qlog support.
  • QUIC Address Discovery (QAD).
  • Using QUIC to traverse NATs (QNT).

Getting started

Examples at https://github.com/n0-computer/noq/blob/main/noq/examples

$ cargo run --example server ./
$ cargo run --example client https://localhost:4433/Cargo.toml

This launches an HTTP 0.9 server over the QUIC transport on the loopback address serving the current working directory, with the client fetching ./Cargo.toml. By default, the server generates a self-signed certificate and stores it to disk, where the client will automatically find and trust it.

License

Copyright 2025 The quinn developers Copyright 2025 N0, INC.

This project is licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this project by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.