A pure-Rust, async-compatible implementation of the IETF QUIC transport protocol.
Quinn is a pure-Rust implementation of the QUIC transport protocol, designed for modern async networking. It provides a high-performance, secure foundation for applications requiring low-latency, multiplexed connections, such as real-time communication and web services.
Rust developers building networked applications that benefit from QUIC's features, such as real-time communication systems, web services requiring low latency, or peer-to-peer applications. It also targets developers needing a sans-IO protocol state machine for custom event loops.
Developers choose Quinn for its pure-Rust implementation that leverages Rust's safety and performance, seamless integration with Rust's async ecosystem (primarily tokio), and modular architecture offering both high-level APIs and low-level, deterministic state machines. Its pluggable cryptography and support for application-layer datagrams provide flexibility over alternatives.
Async-friendly QUIC implementation in Rust
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.
Eliminates memory safety risks common in C/C++ networking code, leveraging Rust's ownership model for robust, dependency-free implementation as highlighted in the project's pure-Rust design.
Seamlessly works with Rust's async ecosystem, primarily using tokio, making it ideal for modern high-concurrency applications, as evidenced by the future-based API and examples.
Offers a high-level API in 'quinn' for ease of use and a sans-IO state machine in 'quinn-proto' for custom event loops, providing flexibility for specialized networking needs.
Supports custom cryptographic providers via rustls and ring backend, allowing tailored security implementations, as noted in the README's emphasis on configurability.
Requires developers to manually adjust UDP buffer sizes (SO_SNDBUF/SO_RCVBUF) for optimal performance, which can be platform-specific and need elevated privileges, as warned in the usage notes.
Self-signed certificates or non-standard validation require additional configuration, such as using rcgen or custom rustls logic, adding overhead for simple deployments.
Compared to established QUIC implementations like Google's, Quinn has a smaller community and fewer third-party tools, which might slow troubleshooting and integration efforts.