PNG alpha transparency
- RECSemi-transparent areas in PNG files
Chrome
- 4 - 110: Supported
- 111: Supported
- 112 - 114: Supported
Edge
- 12 - 110: Supported
- 111: Supported
Safari
- 3.1 - 16.2: Supported
- 16.3: Supported
- 16.4 - TP: Supported
Firefox
- 2 - 110: Supported
- 111: Supported
- 112 - 113: Supported
Opera
- 9 - 94: Supported
- 95: Supported
IE
- 5.5: Not supported
- 6: Not supported (but has polyfill available)
- 7 - 10: Supported
- 11: Supported
Chrome for Android
- 111: Supported
Safari on iOS
- 3.2 - 16.2: Supported
- 16.3: Supported
- 16.4: Supported
Samsung Internet
- 4 - 19.0: Supported
- 20: Supported
Opera Mini
- all: Supported
Opera Mobile
- 10 - 12.1: Supported
- 73: Supported
UC Browser for Android
- 13.4: Supported
Android Browser
- 2.1 - 4.4.4: Supported
- 111: Supported
Firefox for Android
- 110: Supported
QQ Browser
- 13.1: Supported
Baidu Browser
- 13.18: Supported
KaiOS Browser
- 2.5: Supported
- 3: Supported
IE6 does support full transparency in 8-bit PNGs, which can sometimes be an alternative to 24-bit PNGs.
- Resources:
- Wikipedia