Guide comparison
WebTransport vs WebSocket (and WebRTC data channels): a sourced comparison
WebTransport vs WebSocket compared on transport, head-of-line blocking, unreliable delivery and support, with notes on WebRTC data channels.
Updated
Guides
WebTransport guides
Practical, sourced explanations of WebTransport over HTTP/3 and QUIC: what it is, how it differs from WebSocket, which libraries exist, and how to test and debug it.
Guide troubleshooting
Debugging WebTransport handshake errors: a practical checklist
Why a WebTransport connection fails and what to check: certificates, serverCertificateHashes, HTTP/3 support, UDP, origin and path, per the spec.
Updated
Guide how-to
How to test WebTransport locally with an example server
Run a local WebTransport server from the wtransport or webtransport-go examples, then connect from the browser, with a self-signed certificate hash.
Updated
Guide libraries
WebTransport client and server libraries: what exists and its status
Verified WebTransport libraries for Rust, Go, Python, Node.js, .NET and Deno, with licence, latest release and the status caveats each project states.
Updated
Guide basics
What is WebTransport? Streams, datagrams, HTTP/3 and QUIC explained
WebTransport explained: one multiplexed HTTP/3 connection with reliable streams and unreliable datagrams. How it works, support and standards status.
Updated
Browse by topic: Realtime and messaging (the category page is still being built).
Looking for the browser tool? Open the WebTransport tester.