OTG Master

OTG Master lets you mount VeraCrypt-encrypted USB drives directly on your Android device — no root required.

Connect a VeraCrypt volume via USB OTG, enter your password, and access your encrypted files through Android's built-in Files app. Unmount safely when done.

FEATURES

• Mount VeraCrypt volumes formatted as FAT32 or exFAT

• Read and write files on mounted volumes

• Auto Mount — automatically unlocks known drives on connect using biometric authentication

• Hub support — multiple USB drives connected via a hub are all prompted in a single biometric step

• Keyfile support — use a keyfile in addition to or instead of a password

• Custom PIM — supports non-default PIM values for stronger key derivation

• Cipher selection — AES and Serpent supported

• Partitioned disks — scans MBR partition tables and lets you pick the right volume

• No root required — works on standard, unmodified Android devices

• No cloud, no tracking — your files never leave your device

REQUIREMENTS

• Android 8.0 (Oreo) or later

• USB OTG cable or adapter

• A VeraCrypt-encrypted USB drive

OTG Master is free and open source.