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OTG Master

Mount VeraCrypt and LUKS encrypted USB drives on non-rooted Android
新版本 0.4.0
• New: LUKS1 and LUKS2 encrypted volumes are now supported alongside VeraCrypt
• New: ext4 filesystems are now supported for reading and writing, alongside FAT32 and exFAT
• New: On ext4 you can create files and directories, write and modify data, delete, and rename
• New: Read-only mode — mount an encrypted partition so nothing can be written to the drive. Choose per partition in the unlock form, or turn it on for all partitions in Settings
• New: The unlock form automatically detects whether a
OTG Master lets you mount encrypted USB mass-storage devices on Android without root access.

The app reads raw sectors from the USB drive using the Android USB Host API, detects the encryption type on each partition, unlocks the volume, and exposes the decrypted filesystem through a standard Android DocumentsProvider — so other apps like Files or Gallery can browse the unlocked volume directly, just like any other storage location.

Supported encryption:

* VeraCrypt volumes — password, PIM, and/or keyfiles; AES and Serpent ciphers; SHA-512 key derivation
* LUKS1 volumes — PBKDF2-HMAC key derivation, AES-XTS bulk decryption
* LUKS2 volumes — Argon2id key derivation, AES-XTS bulk decryption

Supported filesystems:

* FAT32 and exFAT — full read/write access
* ext4 — full read/write access

Other features:

* Automatically detects and labels each partition as VeraCrypt, LUKS1, LUKS2, or unencrypted with colour-coded tags
* Support for multiple simultaneously attached USB drives, with a picker when more than one is detected
* Remembers credentials per device partition — re-mount in one tap
* Sends a structured diagnostic report to the support form (no data leaves without your review)

NTFS, HFS+, F2FS, and other filesystems are detected but not yet supported for mounting.

版本

雖然在下方可選擇下載 APK 檔案,但要留意這樣的安裝方式將不會收到更新通知,是一種較不安全的下載方法。建議您先安裝 F-Droid 用戶端使用。

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  • 版本 0.4.0 (46) 建議 於 2026 年 10 月 2 日新增

    arm64-v8a armeabi-v7a x86 x86_64

    此版本需要 Android 8.0 或更高的版本。

    此套件包由原開發者建置和簽署,並保證與此原始碼 Tarball 保持一致。

    權限
    • 使用生物識別硬體
      允許應用程式使用生物特徵硬體進行驗證
    • 使用指紋硬體
      允許應用程式使用指紋硬體進行驗證
    • app.fayaz.otgmaster.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    下載 APK 13 MiB PGP 簽章 | 建置紀錄

  • 新版本 0.3.12
    • Much faster browsing of encrypted drives: folders with thousands of files now open in about two seconds instead of nearly three minutes, and file reads are many times quicker
    • New: large exFAT drives now mount on devices that previously rejected them
    • Fixed: the app no longer crashes while listing a folder with many thousands of files
    • Fixed: the unlock form always appears now — it could previously go missing after an auto-mount prompt, leaving no way to unlock the drive
    • Fixed: a mounted
  • 版本 0.3.12 (45) - 於 2026 年 9 月 29 日新增

    arm64-v8a armeabi-v7a x86 x86_64

    此版本需要 Android 8.0 或更高的版本。

    此套件包由原開發者建置和簽署,並保證與此原始碼 Tarball 保持一致。

    權限
    • 使用生物識別硬體
      允許應用程式使用生物特徵硬體進行驗證
    • 使用指紋硬體
      允許應用程式使用指紋硬體進行驗證
    • app.fayaz.otgmaster.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    下載 APK 12 MiB PGP 簽章 | 建置紀錄

  • 版本 0.3.11 (44) - 於 2026 年 9 月 22 日新增

    arm64-v8a armeabi-v7a x86 x86_64

    此版本需要 Android 8.0 或更高的版本。

    此套件包由原開發者建置和簽署,並保證與此原始碼 Tarball 保持一致。

    權限
    • 使用生物識別硬體
      允許應用程式使用生物特徵硬體進行驗證
    • 使用指紋硬體
      允許應用程式使用指紋硬體進行驗證
    • app.fayaz.otgmaster.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    下載 APK 12 MiB PGP 簽章 | 建置紀錄