Clone this repo:
  1. 3f55b5e In WebTransportBidirectionalEchoVisitor, retry sending FIN if we cannot send it immediately. by vasilvv · 28 minutes ago main
  2. 9e0811c Update tests to use full-length authentication tags: will allow use of minimum-size packets. by martinduke · 4 hours ago
  3. 3311d44 Retrieve the correct IPv6 address when sending an ICMP6 Echo Reply. by ramosalex · 13 hours ago
  4. 99ce762 Remove unused QUIC BBRv2 experiments which turned out to diverge from the TCP implementation. by ianswett · 2 days ago
  5. 7aa7377 Internal change by bnc · 2 days ago


QUICHE stands for QUIC, Http, Etc. It is Google‘s production-ready implementation of QUIC, HTTP/2, HTTP/3, and related protocols and tools. It powers Google’s servers, Chromium, Envoy, and other projects. It is actively developed and maintained.

There are two public QUICHE repositories. Either one may be used by embedders, as they are automatically kept in sync:

To embed QUICHE in your project, platform APIs need to be implemented and build files need to be created. Note that it is on the QUICHE team's roadmap to include default implementation for all platform APIs and to open-source build files. In the meanwhile, take a look at open source embedders like Chromium and Envoy to get started:

To contribute to QUICHE, follow instructions at

QUICHE is only supported on little-endian platforms.