npm install @mertushka/webrtc-node

Usage

const { RTCPeerConnection } = require("@mertushka/webrtc-node");

const pc = new RTCPeerConnection({ iceServers: [] });
const channel = pc.createDataChannel("events");

channel.addEventListener("open", () => {
  channel.send("hello from Node");
});

channel.addEventListener("message", (event) => {
  console.log(event.data);
});

See examples/datachannel.js for a complete local offer/answer exchange.

Supported Platforms

Node.js 20 or newer is required. The npm package downloads a matching Node-API prebuild when available, verifies its SHA-256 digest and target, then falls back to a cmake-js source build.

| OS | Prebuild targets | Node 20 | Node 22 | Node 24 | | --- | --- | --- | --- | --- | | Linux | x64 glibc, x64 musl | ✅ | ✅ | ✅ | | macOS | x64, arm64 | ✅ | ✅ | ✅ | | Windows | x64, arm64 | ✅ | ✅ | ✅ |

Source builds require CMake, a C++17 compiler, and OpenSSL development libraries.

Performance Snapshot

Local benchmark snapshots show this package ahead on binary throughput and object operation rates. Benchmarks are environment-sensitive; treat them as directional rather than a substitute for testing your workload.

| Metric | webrtc-node | node-datachannel | @roamhq/wrtc | | --- | ---: | ---: | ---: | | Linux binary 8 KiB x1000 | 39.9 MB/s | 30.4 MB/s | 27.4 MB/s | | Linux construct+close PC | 53k ops/s | 3.2k ops/s | 200 ops/s | | Linux negotiated DC create+close | 2.2k ops/s | 974 ops/s | 173 ops/s |

Contributing

Read CONTRIBUTING.md before opening a pull request. Public API changes should update runtime code, TypeScript declarations, tests, and WPT documentation together.

License

Mozilla Public License 2.0. See LICENSE.