Name		Name	Last commit message	Last commit date
.clusterfuzzlite		.clusterfuzzlite
.githooks		.githooks
.github		.github
assets		assets
example		example
http3		http3
integrationtests		integrationtests
internal		internal
interop		interop
metrics/dashboards		metrics/dashboards
qlog		qlog
qlogwriter		qlogwriter
quicvarint		quicvarint
testutils		testutils
.gitignore		.gitignore
.golangci.yml		.golangci.yml
FIPS140.md		FIPS140.md
FUZZING.md		FUZZING.md
LICENSE		LICENSE
README.md		README.md
SECURITY.md		SECURITY.md
buffer_pool.go		buffer_pool.go
buffer_pool_test.go		buffer_pool_test.go
client.go		client.go
client_test.go		client_test.go
closed_conn.go		closed_conn.go
closed_conn_test.go		closed_conn_test.go
codecov.yml		codecov.yml
config.go		config.go
config_test.go		config_test.go
conn_id_generator.go		conn_id_generator.go
conn_id_generator_test.go		conn_id_generator_test.go
conn_id_manager.go		conn_id_manager.go
conn_id_manager_test.go		conn_id_manager_test.go
conn_wrapped_test.go		conn_wrapped_test.go
connection.go		connection.go
connection_logging.go		connection_logging.go
connection_logging_test.go		connection_logging_test.go
connection_test.go		connection_test.go
crypto_stream.go		crypto_stream.go
crypto_stream_manager.go		crypto_stream_manager.go
crypto_stream_manager_test.go		crypto_stream_manager_test.go
crypto_stream_test.go		crypto_stream_test.go
datagram_queue.go		datagram_queue.go
datagram_queue_test.go		datagram_queue_test.go
errors.go		errors.go
errors_test.go		errors_test.go
flow_controller_base.go		flow_controller_base.go
flow_controller_connection.go		flow_controller_connection.go
flow_controller_connection_test.go		flow_controller_connection_test.go
flow_controller_stream.go		flow_controller_stream.go
flow_controller_stream_test.go		flow_controller_stream_test.go
flow_controller_test_helpers_test.go		flow_controller_test_helpers_test.go
frame_sorter.go		frame_sorter.go
frame_sorter_test.go		frame_sorter_test.go
framer.go		framer.go
framer_test.go		framer_test.go
go.mod		go.mod
go.sum		go.sum
interface.go		interface.go
mock_ack_frame_source_test.go		mock_ack_frame_source_test.go
mock_conn_runner_test.go		mock_conn_runner_test.go
mock_frame_source_test.go		mock_frame_source_test.go
mock_packer_test.go		mock_packer_test.go
mock_packet_handler_test.go		mock_packet_handler_test.go
mock_packetconn_test.go		mock_packetconn_test.go
mock_raw_conn_test.go		mock_raw_conn_test.go
mock_sealing_manager_test.go		mock_sealing_manager_test.go
mock_send_conn_test.go		mock_send_conn_test.go
mock_sender_test.go		mock_sender_test.go
mock_stream_control_frame_getter_test.go		mock_stream_control_frame_getter_test.go
mock_stream_frame_getter_test.go		mock_stream_frame_getter_test.go
mock_stream_sender_test.go		mock_stream_sender_test.go
mock_unpacker_test.go		mock_unpacker_test.go
mockgen.go		mockgen.go
mtu_discoverer.go		mtu_discoverer.go
mtu_discoverer_test.go		mtu_discoverer_test.go
oss-fuzz.sh		oss-fuzz.sh
packet_packer.go		packet_packer.go
packet_packer_test.go		packet_packer_test.go
packet_unpacker.go		packet_unpacker.go
packet_unpacker_test.go		packet_unpacker_test.go
path_manager.go		path_manager.go
path_manager_outgoing.go		path_manager_outgoing.go
path_manager_outgoing_test.go		path_manager_outgoing_test.go
path_manager_test.go		path_manager_test.go
quic_linux_test.go		quic_linux_test.go
quic_test.go		quic_test.go
receive_stream.go		receive_stream.go
receive_stream_test.go		receive_stream_test.go
retransmission_queue.go		retransmission_queue.go
retransmission_queue_test.go		retransmission_queue_test.go
send_conn.go		send_conn.go
send_conn_test.go		send_conn_test.go
send_queue.go		send_queue.go
send_queue_test.go		send_queue_test.go
send_stream.go		send_stream.go
send_stream_test.go		send_stream_test.go
server.go		server.go
server_test.go		server_test.go

Repository files navigation

A QUIC implementation in pure Go

quic-go is an implementation of the QUIC protocol (RFC 9000, RFC 9001, RFC 9002) in Go.

Other QUIC specifications:

Unreliable Datagram Extension (RFC 9221)
Datagram Packetization Layer Path MTU Discovery (DPLPMTUD, RFC 8899)
QUIC Version 2 (RFC 9369)
QUIC Event Logging using qlog (draft-ietf-quic-qlog-main-schema and draft-ietf-quic-qlog-quic-events)
QUIC Stream Resets with Partial Delivery (draft-ietf-quic-reliable-stream-reset-07 and draft-ietf-quic-reliable-stream-reset-09)

quic-go also supports HTTP/3 (RFC 9114).

Other HTTP/3 specifications:

QPACK: Field Compression for HTTP/3 (RFC 9204)
Extensible Prioritization Scheme for HTTP (RFC 9218)
HTTP Datagrams and the Capsule Protocol (RFC 9297)

Related projects:

webtransport-go implements WebTransport over HTTP/3 (draft-ietf-webtrans-http3).
masque-go implements CONNECT-UDP (RFC 9298).
connect-ip-go implements CONNECT-IP (RFC 9484).

Detailed documentation can be found on quic-go.net.

FIPS 140-3

Starting with v0.60, quic-go supports use in FIPS 140-3 environments when built with Go 1.26 or newer, using Go standard library cryptography for the QUIC code paths relevant in FIPS mode; see FIPS140.md for details.

Projects using quic-go

Project	Description	Stars
AdGuardHome	Free and open source, powerful network-wide ads & trackers blocking DNS server.
algernon	Small self-contained pure-Go web server with Lua, Markdown, HTTP/2, QUIC, Redis and PostgreSQL support
caddy	Fast, multi-platform web server with automatic HTTPS
cloudflared	A tunneling daemon that proxies traffic from the Cloudflare network to your origins
frp	A fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet
go-libp2p	libp2p implementation in Go, powering Kubo (IPFS) and Lotus (Filecoin), among others
gost	A simple security tunnel written in Go
Hysteria	A powerful, lightning fast and censorship resistant proxy
Mercure	An open, easy, fast, reliable and battery-efficient solution for real-time communications
nodepass	A secure, efficient TCP/UDP tunneling solution that delivers fast, reliable access across network restrictions using pre-established TCP/QUIC/WebSocket or HTTP/2 connections.
OONI Probe	Next generation OONI Probe. Library and CLI tool.
reverst	Reverse Tunnels in Go over HTTP/3 and QUIC
RoadRunner	High-performance PHP application server, process manager written in Go and powered with plugins
syncthing	Open Source Continuous File Synchronization
traefik	The Cloud Native Application Proxy
v2ray-core	A platform for building proxies to bypass network restrictions
YoMo	Streaming Serverless Framework for Geo-distributed System

If you'd like to see your project added to this list, please send us a PR.

Release Policy

quic-go always aims to support the latest two Go releases.

Contributing

We are always happy to welcome new contributors! We have a number of self-contained issues that are suitable for first-time contributors, they are tagged with help wanted. If you have any questions, please feel free to reach out by opening an issue or leaving a comment.

License

The code is licensed under the MIT license. The logo and brand assets are excluded from the MIT license. See assets/LICENSE.md for the full usage policy and details.