BLACKBOX POWERED BY GHT

Get Blackbox

A zero-knowledge password, secret & autofill manager. Your master password and keys never leave your device — we only ever store encrypted ciphertext. Sign in anywhere and your vault follows you.

AES-256-GCM · ARGON2ID · ZERO-KNOWLEDGE

Web Vault

Any browser · nothing to install

Open it instantly and start using your vault. Works on any device — the fastest way to try Blackbox.

Open Web Vault →

Desktop App

Windows 10/11 · 64-bit

A native app in its own window, always a click away. Same vault, same cloud sync.

Download for Windows
Unsigned during beta — Windows SmartScreen may warn; click “More info → Run anyway.”

Browser Extension

Chrome · Edge · Brave

One-click autofill and save-on-login, right in your browser.

Download extension
Chrome Web Store listing coming soon — one-click install then.

Extension setup (during beta)

  1. Download the extension above and unzip it to a folder you'll keep.
  2. Open chrome://extensions (or edge://extensions).
  3. Turn on Developer mode (top-right toggle).
  4. Click Load unpacked and select the unzipped folder.
  5. Click the puzzle-piece 🧩 in the toolbar and pin Blackbox.
  6. Click the Blackbox icon → Create an account (or Sign in) → you're set. Autofill works on every site.