onnxjs-node

onnxjs-node is a Node.js binding of ONNXRuntime that works seamlessly with ONNX.js.

Installation

Install the latest stable version:

npm install onnxjs-node

NOTE: binary files will be pulled from github during the npm install process.

Supported Platforms

OS	Arch	CPU/GPU	NAPI version	Node.js version	ONNXRuntime version
Windows	x64	CPU	v3	v12.0.0+	v1.4.0
Linux	x64	CPU	v3	v12.0.0+	v1.4.0
macOS	x64	CPU	v3	v12.0.0+	v1.4.0
Windows	x64	GPU	v3	v12.0.0+	v1.4.0
Linux	x64	GPU	v3	v12.0.0+	v1.4.0

Usage

There are 2 options to import onnxjs-node.

• Option 1 - replace onnxjs by onnxjs-node:

  //const onnx = require('onnxjs');
  const onnx = require('onnxjs-node');
  
  // use 'onnx'
  // ...
  

• Option 2 - add a single line to require onnxjs-node:

  const onnx = require('onnxjs');
  require('onnxjs-node');  // this line can be put on the top as well
  
  // use 'onnx'
  // ...
  

After onnxjs-node is imported, the default inference session class of ONNX.js will be overwritten. Any existing ONNX.js code will continue to work and model will run by ONNXRuntime backend.

Options

Enable/Disable GPU

Coming soon...

Backend Fallback

After onnxjs-node is imported, ONNXRuntime backend will be used by default. However, it is possible to fallback to other backend by specifying the session option backendHint:

session = new onnx.InferenceSession({backendHint: 'wasm'});  // use WebAssembly backend

Documentation

• ONNX.js Home
• ONNXRuntime Node.js binding

License

Copyright (c) fs-eire. All rights reserved.

Licensed under the MIT License.