Installation

To use WebNN before the Origin Trial  milestone, complete these setup requirements.

• Window 11, version 21H2 or newer
• It’s recommended to install the latest Intel® Arc™ & Iris® Xe Graphics on Windows  for improved WebNN compatibility and performance

Enabling WebNN

Running WebNN on CPU or GPU

Launch Chrome Canary or Edge Canary

  "%LOCALAPPDATA%\Google\Chrome SxS\Application\chrome.exe"

  "%LOCALAPPDATA%\Microsoft\Edge SxS\Application\msedge.exe"

Running WebNN on NPU

• Window 11, version 24H2 or newer
• It’s recommended to install the Intel® Core™ Ultra NPU Driver 32.0.100.3717 on Windows  for improved WebNN compatibility and performance
• Prepare the DirectML.dll. Download the latest redistributable Microsoft.AI.DirectML , rename microsoft.ai.directml.[version].nupkg to microsoft.ai.directml.[version].nupkg.zip and extract it

Chrome Canary

Put the DirectML.dll into correct path

Copy \bin\x64-win\DirectML.dll to %LOCALAPPDATA%\Google\Chrome SxS\Application\[version]\

• %LOCALAPPDATA% means C:\Users\<username>\AppData\Local\
• Note that Chrome Canary frequently updates automatically. When this occurs, recopy the DirectML.dll to the new version’s directory.

Launch Chrome Canary in Windows Command Line

  "%LOCALAPPDATA%\Google\Chrome SxS\Application\chrome.exe" --use-redist-dml --disable_webnn_for_npu=0

Edge Canary

Put the DirectML.dll into correct path

Copy \bin\x64-win\DirectML.dll to %LOCALAPPDATA%\Microsoft\Edge SxS\Application\[version]\

• %LOCALAPPDATA% means C:\Users\<username>\AppData\Local\
• Note that Edge Canary frequently updates automatically. When this occurs, recopy the DirectML.dll to the new version’s directory.

Launch Edge Canary in Windows Command Line

  "%LOCALAPPDATA%\Microsoft\Edge SxS\Application\msedge.exe" --disable_webnn_for_npu=0

Test your WebNN API installation at Playground - Hello WebNN.