File Hash Verifier

A lightweight Windows application for calculating and verifying file hashes using multiple algorithms. File Hash Verifier supports MD5, SHA-1, SHA-256, SHA-512, and SHA3-256, with seamless Windows Explorer context menu integration for quick file verification.

---

Features

• Multiple hash algorithms: Calculate MD5, SHA-1, SHA-256, SHA-512, and SHA3-256 hashes
• Hash verification: Compare computed hashes against expected values
• Load from file: Import hash values from text files (*.md5, *.sha256, etc.)
• Context menu integration: Right-click any file in Windows Explorer to verify its hash
• Progress tracking: Real-time progress bar with computation time display
• User-friendly GUI: Clean, intuitive interface built with Tkinter

---

Installation

Quick Install

1. Download the latest release from the releases page
2. Extract the ZIP file containing three executables:
   • HashVerifier.exe
   • install.exe
   • uninstall.exe
3. Run install.exe to install File Hash Verifier
4. The installer will automatically add a "Verify Hash" entry to your right-click context menu

Note: Administrator privileges are required for installation to Program Files.

Uninstall

1. Run uninstall.exe from the installation directory or your downloads folder
2. Confirm the uninstallation
3. All program files and registry entries will be removed

---

Usage

Via Context Menu

1. Right-click any file in Windows Explorer
2. Select "Verify Hash" from the context menu
3. The application opens and automatically calculates all hash values
4. Copy individual hashes or paste an expected hash to verify

Verifying Hashes

Method 1: Paste hash directly

1. Copy the expected hash value
2. Paste it into the "Verify Hash" input field
3. Click Compare
4. Result displays as ✓ Match or ✗ No Match

Method 2: Load from file

1. Click Load File
2. Select a text file containing the hash (*.txt, *.md5, *.sha256, etc.)
3. The application automatically extracts and compares the hash

---

Building from Source

For developers who want to build from source or contribute:

Prerequisites

• Python 3.7 or higher
• PyInstaller

Build Steps

1. Clone the repository:

git clone https://github.com/mirbyte/file-hash-verifier.git
cd file-hash-verifier

2. Install PyInstaller:

pip install pyinstaller

3. Run the build script:

python build_all.py

The dist folder will contain:

• HashVerifier.exe (~15 MB)
• install.exe (~10 MB)
• uninstall.exe (~10 MB)

---

Technical Details

Supported Hash Algorithms

Algorithm	Output Length	Use Case
MD5	32 hex chars	Legacy compatibility
SHA-1	40 hex chars	Legacy compatibility
SHA-256	64 hex chars	Modern standard
SHA-512	128 hex chars	High security
SHA3-256	64 hex chars	Modern alternative

System Requirements

• OS: Windows 10 or later (Windows 11 supported)
• Disk Space: 20 MB for installation
• Privileges: Administrator rights required for installation

Installation Location

• Program files: C:\Program Files\HashVerifier\
• Registry key: HKEY_CURRENT_USER\Software\Classes\*\shell\HashVerifier

---

Acknowledgments

• Built with Python
• GUI powered by Tkinter
• Packaged with PyInstaller

---

Author

Created by @mirbyte

---

Please star ⭐ this repository if you find it useful!