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0x56erify

Local, offline SHA-256/SHA-512 checksum verification.
New in version 0.1.3
0.1.3 - Bug fix

- Fix pasting several checksum lines (e.g. a whole SHA256SUMS file) into
the expected-hash field: only the first hash was used, so a genuine file
listed on a later line showed MISMATCH. Input with more than one
different hash, or with lines that are not checksum lines, is now
rejected with an explanation instead of being guessed at.
0x56erify is a minimal, offline-first checksum verification tool for Android.

Pick a file with the system document picker, compute its SHA-256 or SHA-512
checksum, and compare it against a hash you paste in (for example, one
published alongside a download) to confirm the file wasn't corrupted or
tampered with.

Features:

* Pick any file using Android's built-in Storage Access Framework picker
* Compute SHA-256 or SHA-512 checksums
* Streamed hashing: large files are never fully loaded into memory
* Copy or share the computed hash
* Paste an expected hash and get a clear MATCH / MISMATCH result
* Case-insensitive, whitespace-tolerant hash comparison

Privacy and permissions:

* All processing happens entirely on-device
* No network access, no INTERNET permission, no analytics, no ads, no accounts
* No broad storage permissions - files are accessed only through the system
picker for the duration of the operation
* No proprietary or Google Play Services / Firebase dependencies

0x56erify is free and open source software, released under the Apache
License 2.0.

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 0.1.3 (4) suggested Added on Oct 02, 2026

    This version requires Android 8.0 or newer.

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

    Permissions
    • dev.x56.verify.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 5.6 MiB PGP Signature | Build Log

  • New in version 0.1.2
    0.1.2 - Build/release metadata fix

    - Disable Android Gradle Plugin's dependency metadata block
    (dependenciesInfo.includeInApk/includeInBundle) in the release build.
    This block is used for Play Console reporting and is irrelevant off
    Play; it was flagged by F-Droid's reproducible-build tooling as an
    unwanted extra signing block. No app functionality changed.
  • Version 0.1.2 (3) - Added on Oct 01, 2026

    This version requires Android 8.0 or newer.

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

    Permissions
    • dev.x56.verify.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 5.6 MiB PGP Signature | Build Log