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Picocrypt-NG

Paranoid, offline file encryption with XChaCha20 and Argon2id.
New in version 2.18
v2.18
- Android release builds are prepared for F-Droid source and reproducible-build verification.
- Updated Go image dependency with TIFF decoder security fixes.
Picocrypt-NG encrypts files locally — a community-maintained continuation of Picocrypt. No accounts, no cloud, no telemetry, no network access (the app does not request the INTERNET permission).

XChaCha20 for encryption, with the key derived from your password by Argon2id. Every volume is authenticated, so tampering or corruption is detected on decryption.

Features:

- Encrypt a single file, multiple files, or a folder
- Optional keyfiles, with an option to require them in a fixed order
- Paranoid mode: extra cipher cascade and harder key derivation
- Reed-Solomon error correction to recover volumes from limited corruption
- Deniability mode: the encrypted volume appears as random data
- Optional compression
- Comments stored with the volume
- Optional verify-before-write integrity check
- Long operations continue in a foreground service when the app is backgrounded

Volumes are cross-platform with the desktop app (Windows, macOS, Linux). A multi-file or compressed volume contains a single .zip inside; Android saves it without extracting.

Free software under GPLv3. The Android app is built from source: the native library is compiled from the Go sources in this repository, with no prebuilt binaries committed.
  • app screenshot
  • app screenshot

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 2.18 (218004) suggested Added on Jul 01, 2026

    x86_64

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • show notifications
      Allows the app to show notifications
    • io.github.picocrypt_ng.picocrypt_ng.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 11 MiB PGP Signature | Build Log

  • Version 2.18 (218003) - Added on Jul 01, 2026

    x86

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • show notifications
      Allows the app to show notifications
    • io.github.picocrypt_ng.picocrypt_ng.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 10 MiB PGP Signature | Build Log

  • Version 2.18 (218002) - Added on Jul 01, 2026

    arm64-v8a

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • show notifications
      Allows the app to show notifications
    • io.github.picocrypt_ng.picocrypt_ng.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 10 MiB PGP Signature | Build Log

  • Version 2.18 (218001) - Added on Jul 01, 2026

    armeabi-v7a

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • show notifications
      Allows the app to show notifications
    • io.github.picocrypt_ng.picocrypt_ng.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 10 MiB PGP Signature | Build Log

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