Implementation Status of WebNN Operations
|
WebNN Spec |
Web Platform Tests |
Chromium Implementation | |||||
|---|---|---|---|---|---|---|---|
| LiteRT 1 | Windows ML 2 | Core ML 3 | |||||
Windows
ChromeOS
Android
Linux
|
Windows
|
macOS
|
|||||
| Operations |
 4
|
Operations |
5
|
Operations |
6
|
||
LiteRT
Windows ML
Core ML
✅ Supported ()
⏳ Partly Implemented ()
🚀 Work in Progress ()
❌ Not Supported
✅ Supported ()
⏳ Partly Implemented ()
🚀 Work in Progress ()
❌ Not Supported
✅ Supported ()
⏳ Partly Implemented ()
🚀 Work in Progress ()
❌ Not Supported
JavaScript ML Frameworks Integration Status
|
WebNN Spec |
JavaScript ML Frameworks Integration | |||
|---|---|---|---|---|
 Execution Provider 7 |
External Delegate 8 |
|||
| Operations | EP Version | Operations | Delegate Version | |
ONNX Runtime Web
Execution Provider
Execution Provider
LiteRT.js
External Delegate
External Delegate
✅ Supported ()
⏳ Partly Implemented ()
🚀 Work in Progress ()
❌ Not Supported
✅ Supported ()
⏳ Partly Implemented ()
🚀 Work in Progress ()
❌ Not Supported
The total number of WebNN ops is 95. These tables currently lists ops that are implemented or work in progress by multiple backends and JavaScript machine learning frameworks.
[1] LiteRT Builtin Options
[2] ONNX Operators
[3] Core ML operators
[4][5][6] This feature is experimental. Visit WebNN Installation Guide for the latest and most reliable installation instructions
[7] ONNX Operator Schemas and WebNN EP Helper
[8] LiteRT built-in operators kTfLiteBuiltin*
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