OTG Checker & File Explorer

OTG Checker & File Explorer helps you check USB OTG support on your Android phone, manage files, and organize device storage. Browse internal storage, access supported SD cards and USB drives, and find duplicate files or empty folders in one app.

➠ USB OTG support check

• Check whether Android reports USB host support on your device.

• View a clear result before trying an OTG adapter or USB accessory.

The support check uses information Android reports. It does not enable OTG or guarantee that every USB drive, keyboard, or other accessory will work. Connections depend on your device, adapter, accessory, and power requirements.

➠ File manager and explorer

• Browse folders in internal storage and supported, connected SD cards or USB OTG drives.

• Copy, move, rename, share, or delete files you choose.

• Create folders to organize photos, videos, music, and documents.

• Search the current folder by name and view file details.

Access to removable storage depends on Android support and the permissions you grant. You may need to select a drive or folder using Android's folder picker.

➠ Duplicate file finder

• Scan accessible files in internal shared storage for duplicate content.

• Find extra copies of photos, videos, music, documents, and other files.

• Review duplicate groups and select copies to delete while keeping one copy in each group.

➠ Empty folder cleaner

• Find empty folders in accessible internal shared storage.

• Review and select folders before deleting them.

• Scan again after cleanup to find parent folders that have become empty.

Deleting duplicate files can free up storage space. Removing empty folders helps keep your folders organized.

➠ Device information

• View your device model, manufacturer, and Android version.

• Check total, used, and available RAM and internal storage.

• See battery level, hardware, and system build details.

➠ Permissions

• All Files Access: Used to browse and manage accessible shared storage and scan for duplicate files and empty folders. Android's protected folders remain restricted.

• Storage access on older Android versions: Used to read and manage files you choose.

• Internet and network state: Used to load ads, connect to Firebase services, and check connectivity.

• Advertising ID: Used by the advertising service to support ads, subject to your device settings.

➠ Ads and cleanup

The app contains ads. Deleting selected duplicate files or empty folders may require watching a rewarded ad and an internet connection. Review your selections before deleting; deletion is permanent.

➠ Privacy note

File browsing and cleanup run on your device. The app also uses Google AdMob and Firebase services for advertising, analytics, crash reporting, messaging, and app configuration. These services may process device and usage data. Read the Privacy Policy in Settings for details.