expo-file-system
npmv57.0.6TypeScriptProvides access to the local file system on the device.
Safe to adopt
Yes — expo-file-system scores well across adoption, maintenance, weight, supply chain, and licensing. 8.4M downloads per week and 1 known dependents. Last published 14 days ago. 50 releases in the last 2 years.
- AAdoption: grade A, Excellent.
8.4M downloads per week and 1 known dependents.
- AMaintenance: grade A, Excellent.
Last published 14 days ago. 50 releases in the last 2 years.
- AWeight: grade A, Excellent.
Zero runtime dependencies, about 7.4 MB installed.
- ASupply chain: grade A, Excellent.
No install scripts, 16 maintainers, and a contained dependency surface.
- ALicense: grade A, Excellent.
MIT — permissive, with no copyleft found in the dependency tree.
Grades are computed deterministically from registry metadata collected by PackageGraph — downloads, dependents, publish dates, the resolved dependency tree, maintainer count, and declared licenses. No third-party scores are used.
Install cost
What you actually take on by adding expo-file-system to a project.
Runtime packages this one declares itself.
Distinct packages in the full runtime tree, deduplicated the way a package manager would.
Unpacked size of this package plus its entire runtime tree.
Longest resolved dependency chain below this package.
Compatibility
- Node.js
- No constraint declared
- Module format
- CommonJS only
- TypeScript
- Types included
- Install scripts
- None
Quick start
A usage example from the expo-file-system README.
<!-- Added permissions -->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />expo-file-system vs the alternatives
Packages solving a similar problem in the npm ecosystem, compared on the signals that drive an adoption decision.
| Package | Weekly downloads | Dependents | License | Last release |
|---|---|---|---|---|
| expo-file-systemthis page | 8.4M | 1 | MIT | 14 days ago |
| @expo/config | 9.1M | 5 | MIT | 1 day ago |
| expo-keep-awake | 0 | 1 | MIT | 1 day ago |
| expo-sqlite | 0 | 1 | MIT | 1 day ago |
| @expo/local-build-cache-provider | 0 | 1 | MIT | 1 day ago |
| expo-constants | 0 | 6 | MIT | 1 day ago |
Dependencies
Declared by expo-file-system v57.0.6. Runtime dependencies are installed with the package; dev dependencies are not.
Peer (2)
Dev (4)
Used by
Popular packages that depend on expo-file-system.
Relationship graph
Dependencies (left) and dependents (right) of expo-file-system.
Frequently installed together
A WebView specifically designed for Expo DOM components
React is a JavaScript library for building user interfaces.
React package for working with the DOM.
A framework for building native apps using React
Tools for making advanced Metro bundler features work
A structuredClone polyfill
A library for interacting with the app.json
A library for Expo config plugins
Derivative of whatwg-url without unicode handling and optimized for Expo
A Metro config for running React Native projects with the Metro bundler
TypeScript definitions for react
The core of Expo Modules architecture
Release history
50 releases in the last two years, typically about 2 days apart.
| Version | Published | Size | License |
|---|---|---|---|
| 58.0.0-canary-20260902-26df09e | 7 days ago | 7.9 MB | MIT |
| 58.0.0-canary-20260901-2164f24 | 8 days ago | 7.9 MB | MIT |
| 56.0.11 | 12 days ago | 6.8 MB | MIT |
| 57.0.6latest | 14 days ago | 7.4 MB | MIT |
| 55.0.26 | 15 days ago | 4.1 MB | MIT |
| 57.0.5 | 20 days ago | 7.4 MB | MIT |
| 19.0.24 | 23 days ago | 820 KB | MIT |
| 55.0.25 | 23 days ago | 4.1 MB | MIT |
| 56.0.10 | 23 days ago | 6.8 MB | MIT |
| 57.0.3 | 26 days ago | 7.4 MB | MIT |
| 57.0.4 | 26 days ago | 7.4 MB | MIT |
| 58.0.0-canary-20260812-27f94d4 | 28 days ago | 7.9 MB | MIT |
| 58.0.0-canary-20260806-8c2d007 | 1 month ago | 1.5 MB | MIT |
| 56.0.9 | 1 month ago | 6.8 MB | MIT |
| 57.0.2 | 1 month ago | 7.4 MB | MIT |
Overview
expo-file-system is an npm package that provides access to the local file system on the device. It is extremely widely used, with about 8.4M downloads per week and 1 known dependents in the graph. The latest version is 57.0.6, released under the MIT license.
Who should use it
Teams working in the npm ecosystem who need provides access to the local file system on the device and value a battle-tested, widely-adopted solution.
When not to use it
Consider an alternative if you need to or if a more actively-maintained option better fits your npm stack.
Pros
- Large, well-established user base (8.4M weekly downloads).
- Ships TypeScript type definitions.
- Clear open-source license (MIT).
Cons
- No significant drawbacks detected from available metadata.
Auto-generated from collected registry metadata. No external claims are inferred.
Maintainers
Keywords
Frequently asked questions
Should I use expo-file-system?
Yes — expo-file-system scores well across adoption, maintenance, weight, supply chain, and licensing. 8.4M downloads per week and 1 known dependents. Last published 14 days ago. 50 releases in the last 2 years.
How do I install expo-file-system?
Run `npm install expo-file-system` to add expo-file-system to your npm project.
What license is expo-file-system released under?
expo-file-system is distributed under the MIT license.
How popular is expo-file-system?
expo-file-system has approximately 8,364,847 downloads per week and 1 known dependent packages.
Is expo-file-system still maintained?
The most recent release of expo-file-system (v57.0.6) was published 14 days ago.
Does expo-file-system run install scripts?
No. expo-file-system does not define preinstall, install, or postinstall scripts, so installing it does not execute publisher-supplied code.