Web features explorer

Web serial

Limited availability

This feature has received a negative standards position from at least one browser vendor — It's very unlikely to ever become Baseline in this current form.

The navigator.serial API communicates with devices over serial ports, such as microcontrollers.

Browser support

  • Chrome 89 Released on 2021-03-02
  • Chrome Android Not supported
  • Edge 89 Released on 2021-03-04
  • Firefox 151 Released on 2026-05-19
  • Firefox for Android Not supported Position: neutral
  • Safari Not supported Position: oppose (concerns: privacy, security, use cases, device independence)
  • Safari on iOS Not supported Position: oppose (concerns: privacy, security, use cases, device independence)

MDN documentation

Specifications

Usage (according to Chrome Platform Status)

~0.002% of page loads. More data at chromestatus.com.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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