Flutter File Picker is an open-source package for Flutter and Dart developers who want their apps to open the native file explorer and let users choose one or several files. It supports extension filtering, so an app can limit the picker to the formats it accepts. The package is free and runs on Windows, macOS, Linux, Android and iOS.
Despite sitting under Block Explorers & Analytics in our catalog, this is not a blockchain tool. It does not read chain data, wallets or transactions. Instead, it is a building block for app code, and its Windows support comes from using the operating system's own picker dialog. The project's code was last updated on 2026-10-26, which makes it a current option for Flutter teams.
What Is Flutter File Picker?
Flutter is a framework for building apps from a single codebase, and Dart is the language it uses. A package is reusable code that other projects import instead of writing the same functionality from scratch. Flutter File Picker is one of those packages, and its job is narrow: it asks the operating system to show a file selection window and returns what the user chose.
Because of this, end users never run Flutter File Picker as a program. They see a normal Open dialog inside an app built by a developer who used the package. If you are looking for a standalone file manager or a utility to install on your PC, this is not that kind of software. Its value lies in helping people who write software.
The package is open source and hosted on GitHub, where its code, issues and wiki can be reviewed by anyone.
Who Is Flutter File Picker For?
The package fits developers who need reliable file input in a Flutter app. Common cases include a photo editor that lets users pick several images from their gallery, a bookkeeping app that imports only CSV or spreadsheet files, and a desktop tool that asks for a single configuration file before running. In each case, the extension filter keeps the choice focused and the native dialog feels familiar.
Teams that ship the same app on desktop and mobile gain the most. Writing one call that works on Windows, macOS, Linux, Android and iOS is simpler than maintaining separate file browsing code for each platform. Solo developers benefit too, because they can skip building a custom file browser and spend their time on the features users actually came for.
People who only need to open files on their own computer, without writing code, will not find a direct use here. For them, the file explorer that already comes with Windows is the right tool.
How Native File Pickers Work in Flutter Apps
When an app calls the picker, the package passes the request to the operating system. Windows displays its standard file window, macOS shows its own sheet, and mobile platforms present their document or gallery interfaces. The user browses, selects and confirms, and the system sends back references to the chosen files.
The app then decides what to do with those references. It might read the contents, copy a file into local storage or show a preview. Validation remains the developer's job. A filter on the dialog narrows what users see, but it does not prove that a file's contents match its name, so robust apps check the data after loading it.
Mobile platforms add permission rules that differ from desktop behavior. Developers should test file selection on each target platform rather than assuming identical results everywhere, especially with large files or documents stored in the cloud.
Key features
Native System File Dialogs
Single and Multiple File Selection
Extension Filtering
Cross-Platform Coverage
Troubleshooting Resources
How to install Flutter File Picker on Windows
- 1
Get the Source From the Official Repository
Open the project's official repository at https://github.com/cake-tech/flutter_file_picker on GitHub. Check the Releases section for a version you want to use, or review the tagged code directly. Download only from the official website or the GitHub Releases page, not from mirrors or file-sharing sites.
- 2
Verify the Download
Compare the SHA-256 checksum or signature when the project publishes one, and confirm that the file matches what the repository offers. If no checksum is available, read the recent commit history and the license before you use the code. This check takes a few minutes and protects your project from tampered copies.
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Add the Package to Your Flutter Project
Reference the package in your project's pubspec.yaml file, then fetch dependencies with the Flutter tooling. The Flutter documentation at flutter.io explains how dependencies are resolved and updated. Once the package is added, import it in the Dart files where you need file selection.
How to use Flutter File Picker
Flutter File Picker is used from inside a Flutter project, so the steps below describe the typical workflow for a developer. Each step builds on the previous one, and testing comes last.
- Add the package to your project's dependencies file and fetch the packages.
- Import the package in the Dart file where you need file selection, such as a form or an import screen.
- Call the picker and choose whether you need one file or several files.
- Pass a list of allowed extensions when you only want certain file types, for example images or PDFs.
- Handle the cancel case gracefully, so that closing the dialog without a selection does not show an error.
- Read or copy the selected files, then validate their contents before your app processes them.
- Test on Windows and on every other target platform, since dialog behavior and permissions vary.
Pros & cons
- Uses the operating system's own file dialog, so users see a familiar interface
- Free and open source, with public code on GitHub
- Supports both single and multiple file selection through one approach
- Covers Windows, macOS, Linux, Android and iOS from one Flutter codebase
- Extension filtering keeps unsupported file types out of the picker
- It is a developer package, with no standalone Windows application for end users
- It does not process or validate files, so your app must handle that work
- Dialog appearance and permission rules differ between operating systems
Is Flutter File Picker safe?
Flutter File Picker is a code package, not a wallet, miner or bot, and it does not store keys or move funds. The main safety concern is where you get it. Download only from the official website or the GitHub repository, and compare the SHA-256 checksum or signature whenever the project publishes one. Read the release notes before updating, because the last code update is dated 2026-10-26 and changes can affect how your app behaves.
A picker only hands over the file a user chose, so your app must still treat that file as untrusted input. Renaming a file can bypass an extension filter, which is why content checks matter. Before adding the package to a production project, confirm the latest version on the official website.
- Official source only. Download from github.com/cake-tech/flutter_file_picker. Ignore ads and lookalike domains.
- Check the SHA-256. Compare the installer hash with the value the developer publishes before running it.
- Never share your seed phrase. No developer, support agent or website — including CryptApps — will ever ask for it.
Alternatives
The similar programs in our catalog mostly work with blockchain data. Chainhook is an indexing engine for Stacks and Bitcoin, BX is a Bitcoin command line tool, and Cshtop visualizes Cosmos blocks in a terminal. Flowdepth focuses on order-flow charts for crypto traders, and Dubhe provides tooling for Move applications.
Flutter File Picker does none of that. It solves an app-building problem: letting users choose local files through the native dialog. If you are building a Flutter app that needs file input, it is the relevant choice here. If you need to analyze blockchain data, the tools above are much closer to what you want, and the two kinds of software rarely overlap in a single project.
Specifications
- Price
- Free
- Type
- Open source
- License
- —
- Latest version
- —
- Last update
- 26 Oct 2026
- Windows support
- Yes (Windows build or installer)
- Source code
- github.com/cake-tech/flutter_file_picker
Frequently asked questions
Yes. Flutter File Picker is listed as free and open source, and its source code is public on GitHub, so you can read it, report issues and check how it works before adding it to a project. Starting costs nothing, so you can test it in a prototype first. Review the license in the repository to confirm how you may use it in your own app.
Yes. The package supports Windows and uses the native Windows file explorer, so users see the same Open dialog they use in other programs. It also runs on macOS, Linux, Android and iOS. Windows users do not install a separate program; the package becomes part of an app built with Flutter, and the dialog appears when that app asks for a file.
It is a code package that opens a file selection dialog and returns the chosen file, and it does not handle wallets or private keys. Download it only from the official GitHub repository or website, and check the checksum or signature when one is available. Safety also depends on your own app, so validate every file it reads.
Add the package to a Flutter project, import it into the Dart file that needs input, and call the picker. Choose single or multiple selection and, if needed, list the allowed extensions. Your app then receives the chosen files and can process them. The FAQ and wiki linked from the project cover common setup issues.
Yes. Extension filtering lets you specify which file types the dialog accepts, such as images, documents or spreadsheets, so people cannot browse past the formats your app supports. Keep in mind that the filter shapes what users see but does not verify contents. Check each file after it loads if the data format matters to your app.
No. Despite its listing in the Block Explorers & Analytics category, the package has nothing to do with blockchain data, wallets or transactions. It is a general Flutter package for choosing local files. Crypto developers may still use it in an app's interface, just like any other Flutter package.
Flutter developers can use other file selection packages or write platform-specific code, but that usually means more maintenance. The similar programs in this catalog are blockchain tools, so they do not replace this package. Compare each option's platform coverage, maintenance status and license before choosing.
Verdict
Flutter File Picker is a sound choice for Flutter and Dart developers who want native file selection with extension filters on Windows and other platforms. It is free, open source and recently updated, and its scope is deliberately narrow. Teams that need a standalone program, or tools for blockchain data, should look elsewhere. Before adopting it, read the repository, check the wiki for platform notes and confirm the latest version on the official website.