Flatsonar

HashVerifier

by Ostap Konstantinov

Checksum generation and verification

Sandboxed Verified creator MIT vv2026.9.19
Screenshot 1 of HashVerifier Screenshot 2 of HashVerifier Screenshot 3 of HashVerifier Screenshot 4 of HashVerifier

About

Cross-platform checksum generation and verification tool with CLI and GTK3 GUI. Features recursive directory hashing, file verification, real-time progress tracking, and support for symbolic links.

Supports 13 hash algorithms: CRC32, MD4, MD5, SHA1, SHA256, SHA384, SHA512, SHA3-256, SHA3-384, SHA3-512, BLAKE3, XXH3, XXH128.

Permissions

Everything this app can reach outside its sandbox. Nothing here weakens it.

  • inter-process communication (needed for X11)
    --share=ipc
  • X11 display, only when Wayland is unavailable
    --socket=fallback-x11
  • Wayland display
    --socket=wayland
  • GPU acceleration
    --device=dri
  • access to your documents folder
    --filesystem=xdg-documents
  • access to your desktop folder
    --filesystem=xdg-desktop
  • access to your download folder
    --filesystem=xdg-download
  • talks to org.freedesktop.FileManager1
    --talk-name=org.freedesktop.FileManager1

Who publishes this

The creator demonstrably controls this app id: Flathub verification, the hosting account owns the namespace, or a well-known file on their domain.

  • verified on Flathub: the developer proved they control this app id
    publisher:flathub

Maintenance

Recent activity on the upstream repository, or built and reviewed by Flathub.

No staleness signals: recent activity, or built and reviewed by Flathub.