cloudflare/quiche

🥧 Savoury implementation of the QUIC transport protocol and HTTP/3

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[](https://crates.io/crates/quiche) [](https://docs.rs/quiche) [](https://opensource.org/licenses/BSD-2-Clause) [quiche] is an implementation of the QUIC transport protocol and HTTP/3 as specified by the [IETF]. It provides a low level API for processing QUIC packets and handling connection state. The application is responsible for providing I/O (e.g. sockets handling) as well as an event loop with support for timers. For more information on how quiche came about and some insights into its design you can read a [post] on Cloudflare's blog that goes into some more detail. quiche powers Cloudflare edge network's HTTP/3 support. The cloudflare-quic.com website can be used for testing and experimentation. Android's DNS resolver uses quiche to implement DNS over HTTP/3. quiche can be integrated into curl to provide support for HTTP/3. Before diving into the quiche API, here are a few examples on how to use the quiche tools provided as part of the quiche-apps crate. These are not suitable for production…

cloudflare/quiche on GitHub A short preview, not the full document.

Read the full README ↗ · Preview checked 2026-09-20T06:38:41.765Z

Inside the original README — Document outline
  1. Who uses quiche?
  2. Cloudflare
  3. Android
  4. curl
  5. Getting Started
  6. Command-line apps
  7. Configuring connections
  8. Connection setup
  9. Handling incoming packets
  10. Generating outgoing packets
  11. Pacing
  12. Sending and receiving stream data

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Documentation belongs to its respective authors. Reported project/model license: BSD-2-Clause. A listing is not a grant of reuse or training rights. Confirm the document’s own terms at the source.

What this repository does

🥧 Savoury implementation of the QUIC transport protocol and HTTP/3

Repository facts

Owner
cloudflare
Primary language
Rust
Stars
12,084
Forks
1,121
Open issues + pull requests
365
License
BSD-2-Clause
Archived
No
Default branch
master
Created
2018-09-29T18:22:05.000Z
Last push
2026-09-18T10:10:05.000Z

Topics and intended use

Owner-supplied topics: http3, network-programming, protocol, quic, rust

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