Web platform features explorer - File system access

The showOpenFilePicker(), showDirectoryPicker(), and showSaveFilePicker() methods request access to files and directories on the user's device and returns a handle for reading and writing to them.

Status

Limited availability

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

MDN documentation

Specifications

File System Access, from Web Platform Incubator Community Group (W3C).

Browser support (view on caniuse.com)

Chrome 86 Released on 2020-10-20
Chrome Android 132 Released on 2025-01-14
Edge 86 Released on 2020-10-09
Firefox ❌ See bugzil.la/1246236 Vendor position : negative
Firefox for Android ❌ Vendor position : negative
Safari ❌ Vendor position : oppose (concerns: security)
Safari on iOS ❌ Vendor position : oppose (concerns: security)

Surveys

Usage (according to Chrome Platform Status)

~0.004% 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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