SealBox Pro

Unlock SealBox Pro

A one-time license. Paste your key below — everything stays 100% in your browser, no account, no server.

Don't have a key yet? Pro is sold on Gumroad — every tool works fully and free without one.

What's in Pro

  • Bulk file encryption

    Seal many files with one password into a single downloadable .sealbox archive, and restore them all at once.

  • Encrypted-notes vault

    A master-password vault of notes persisted on your device (IndexedDB). The master password is never stored.

  • Custom presets

    Tune PBKDF2 iterations, AES-128 vs 256, and the output format — saved for one-click reuse.

  • .sealbox archive format

    Self-describing, versioned bulk archives with per-file salt + IV + ciphertext.

  • Ad-free

    Every ad disappears the instant you unlock.

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