File System Access API
- UNOFFAPI for manipulating files in the device's local file system (not in a sandbox).
Chrome
- ❌ 4 - 73: Not supported
- ❌ 74 - 85: Disabled by default
- ◐ 86 - 104: Partial support
- ✅ 105 - 141: Supported
- ✅ 142: Supported
- ✅ 143 - 145: Supported
Edge
- ❌ 12 - 18: Not supported
- ❌ 79 - 85: Disabled by default
- ◐ 86 - 104: Partial support
- ✅ 105 - 141: Supported
- ✅ 142: Supported
Safari
- ❌ 3.1 - 26.0: Not supported
- ❌ 26.1: Not supported
- ❌ 26.2 - TP: Not supported
Firefox
- ❌ 2 - 144: Not supported
- ❌ 145: Not supported
- ❌ 146 - 148: Not supported
Opera
- ❌ 9 - 60: Not supported
- ❌ 62 - 71: Disabled by default
- ◐ 72 - 90: Partial support
- ✅ 91 - 121: Supported
- ✅ 122: Supported
IE
- ❌ 5.5 - 10: Not supported
- ❌ 11: Not supported
Chrome for Android
- ❌ 142: Not supported
Safari on iOS
- ❌ 3.2 - 18.6: Not supported
- ❌ 26.0: Not supported
- ❌ 26.1: Not supported
Samsung Internet
- ❌ 4 - 28: Not supported
- ❌ 29: Not supported
Opera Mini
- ❌ all: Not supported
Opera Mobile
- ❌ 10 - 12.1: Not supported
- ❌ 80: Not supported
UC Browser for Android
- ❌ 15.5: Not supported
Android Browser
- ❌ 2.1 - 4.4.4: Not supported
- ❌ 142: Not supported
Firefox for Android
- ❌ 144: Not supported
QQ Browser
- ❌ 14.9: Not supported
Baidu Browser
- ❌ 13.52: Not supported
KaiOS Browser
- ❌ 2.5: Not supported
- ❌ 3: Not supported