file_picker_platform_interface

File Picker

A Flutter plugin that lets you use the native file explorer to pick single or multiple files, with extension filtering, directory selection, and save-file dialogs, across Android, iOS, Linux, macOS, Windows, and Web.

This repository is a Melos workspace hosting file_picker as a federated plugin: a single cross-platform API package on top of one implementation package per platform, all versioned and published independently.

Packages

Package	Pub	Description
file_picker		The main package. Add this to your app, it pulls in the right platform implementation automatically.
file_picker_platform_interface		The shared interface and data contracts (PlatformFile, FileType, platform option classes) every implementation builds on.
file_picker_darwin		iOS and macOS implementation.
android_file_picker		Android implementation, including Storage Access Framework (SAF) support.
file_picker_linux		Linux implementation, using GTK3 and XDG Desktop Portals.
windows_file_picker		Windows implementation, using the Win32 COM APIs.
file_picker_web		Web implementation, including Wasm compilation support.

Almost all apps should only ever depend on file_picker directly. The platform packages are pulled in transitively and registered automatically by Flutter's plugin system; you only reach for one of them directly if you need a platform-specific API that isn't exposed on the shared facade (for example FilePickerDarwin.skipEntitlementsChecks() on macOS).

Quick start

dependencies:
  file_picker: ^13.0.0

import 'package:file_picker/file_picker.dart';

final file = await FilePicker.pickFile();

if (file != null) {
  print(file.name);
  print(await file.length()); // Returns Future<int?> (or use file.lengthSync())
}

See packages/file_picker/README.md for the full feature list, platform compatibility chart, and more usage examples (multiple files, extension filters, directory picking, save-file dialogs).

Migration

• Upgrading to v13? See the Migrating to v13 Guide for details on PlatformFile.length() returning Future<int?> and the removal of legacy v12-deprecated parameters.
• Upgrading from pre-v12? See the Migrating to v12 Guide for the federated architecture changes (FilePicker.pickFiles() returning List<PlatformFile>, platform options, and streaming).

Documentation

• packages/file_picker/README.md for usage, platform compatibility chart, and migration guides.
• Platform-specific setup in each package's README (e.g. file_picker_darwin for macOS entitlements, android_file_picker for Android notes).
• API reference on pub.dev.
• packages/file_picker/CHANGELOG.md and each platform package's own CHANGELOG.md for release notes.

Contributing

Contributions are welcome. Please read CONTRIBUTING.md before opening a pull request, it covers testing requirements, versioning, and changelog conventions for this workspace.

To work on this repository locally:

dart pub global activate melos
melos bootstrap
melos run analyze   # flutter analyze across every package
melos run test       # flutter test across every package

Each package keeps its own pubspec.yaml and CHANGELOG.md and is released independently, only the package(s) you actually changed need a version bump.

Credits

file_picker was created and maintained by Miguel Ruivo, starting in 2018, growing it from a single Android/iOS plugin into the federated, cross-platform package it is today. This repository continues that work under new ownership, built entirely on the foundation of his years of effort.

Thank you, Miguel.

License

MIT, see LICENSE. Every package in this repository is released under the same license.