HTTP 2.0 client & server implementation for Rust.
Last updated Jun 30, 2026
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README
H2
A Tokio aware, HTTP/2 client & server implementation for Rust.
[
][dox]
More information about this crate can be found in the [crate documentation][dox].
[dox]: https://docs.rs/h2
Features
- Client and server HTTP/2 implementation.
- Implements the full HTTP/2 specification.
- Passes h2spec.
- Focus on performance and correctness.
- Built on Tokio.
Non goals
This crate is intended to only be an implementation of the HTTP/2 specification. It does not handle:
- Managing TCP connections
- HTTP 1.0 upgrade
- TLS
- Any feature not described by the HTTP/2 specification.
Usage
To use h2, first add this to your Cargo.toml:
[dependencies]
h2 = "0.4"Next, add this to your crate:
extern crate h2;
use h2::server::Connection;
fn main() { // ... }
FAQ
Is this an embedded Java SQL database engine?
No.
