account_balance_wallet Connect Your Wallet

Paste your Wallet Address (starts with 0x)
🦊 How to copy Wallet Address from MetaMask
  1. Open the MetaMask app on your phone
  2. Tap the wallet address at the top (starts with 0x...)
  3. The address will be copied automatically
  4. Come back here and paste it in the field above
open_in_new Open MetaMask App

enhanced_encryption Offline Hash Tool

Extract SHA-256 digital fingerprints on your own device without internet connection. For documents requiring maximum privacy.

security Why Use an Offline Tool?

Varo Universal Registry provides a Privacy-First Client-Side Hashing system for highly confidential documents like business contracts, pitch decks, trade secrets, or source code — the system never uploads or touches your actual file content.

💡 This tool only extracts the "Hash value (digital fingerprint)" from your file. You then enter that value into the registration system — your original file stays on your device.

layers 3 Levels of Hash Tools

Varo offers 3 levels of hash processing to guarantee maximum transparency:

language Web Hashing

Quick browser-based hashing. Files are processed on your device (client-side) — no file is sent to any server.

Best for: General use with convenience

wifi_off Offline HTML Tool ⭐

Download an .html file to run completely offline (air-gapped). You can inspect the source code yourself, then manually input the resulting hash value.

Best for: Confidential docs requiring maximum assurance

desktop_windows Desktop Utility App

Installable desktop program for enterprise users. Supports hashing files up to gigabytes in size.

Status: Coming soon

download Download Offline Hash Tool

fingerprint Varo SHA-256 Hash Tool

Lightweight HTML file. No installation required.
Works on any OS with a browser.

📦 No install needed · ✅ Source code inspectable · 🔒 100% offline capable

school How to Use

1

Download the File

Click the download button to get varo-hash-tool.html and save it to your computer.

2

Disconnect from Internet

(Optional but recommended) Turn off Wi-Fi or unplug LAN for maximum assurance.

3

Open in Browser

Double-click the .html file to open in any browser (Chrome, Firefox, Edge, Safari).

4

Select or Drag File

Click to select or drag-and-drop your file. The tool computes the SHA-256 hash instantly.

5

Copy the Hash

Click "Copy" to copy the hash value to your clipboard.

6

Paste into Registry

Go to the registration page, select "Manual Hash Input" mode, and paste the hash value.

tag What is SHA-256 Hash?

SHA-256 (Secure Hash Algorithm 256-bit) is a mathematical algorithm that converts any file into a unique 64-character hexadecimal code — like a "fingerprint" of the file.

Example hash value:

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Key properties:

⚠️ Important: If the original file is modified even by a single character, the hash immediately changes and won't match the blockchain record — proving the document hasn't been tampered with.

verified_user Cross-Verify Independently

You can verify Varo's hash output using your operating system's built-in commands:

desktop_windows Windows (PowerShell)

Get-FileHash -Algorithm SHA256 "C:\path\to\your-file.pdf"

computer macOS / Linux (Terminal)

shasum -a 256 /path/to/your-file.pdf

If the hash from all 3 sources (Varo tool, OS command, and Blockchain) matches — the document is fully verified.