Web platform features explorer

font-synthesis-weight

The font-synthesis-weight CSS property sets whether or not the browser should synthesize bold typefaces when they're missing from the font.

Status

Baseline Newly Available (since 2023-03-27)

This feature is expected to reach Baseline Widely Available status on: 2025-09-27

MDN documentation

Specifications

Browser support

  • Chrome 97 Released on 2022-01-04
  • Chrome Android 97 Released on 2022-01-04
  • Edge 97 Released on 2022-01-06
  • Firefox 111 Released on 2023-03-14
  • Firefox for Android 111 Released on 2023-03-14
  • Safari 16.4 Released on 2023-03-27
  • Safari on iOS 16.4 Released on 2023-03-27

Usage (according to Chrome Platform Status)

~0.061% of page loads. More data at chromestatus.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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