File to Checksum - Usage Guide

This tool allows you to generate a cryptographic checksum for any file up to 100MB in size. The checksum is a unique digital fingerprint of your file that can be used to verify its integrity.

Features

• Drag-and-drop file upload interface
• Support for files up to 100MB
• Instant checksum generation
• One-click copy to clipboard
• Secure client-side processing (your file never leaves your browser)

How to Use

1. Upload Your File

   • Drag and drop your file into the upload area, or
   • Click the upload area to select a file using your file browser

2. Get Your Checksum

   • The checksum will be automatically generated once your file is uploaded
   • The process may take a few seconds for larger files

3. Copy the Result

   • Click the "Copy" button to copy the checksum to your clipboard
   • You'll see a confirmation message when the copy is successful

Notes

• Only one file can be processed at a time
• If you upload a new file, it will replace the previous one
• The checksum is generated using SHA-512/256, providing a strong cryptographic hash
• All processing is done locally in your browser for security

Common Use Cases

• Verify file integrity after download
• Ensure files haven't been tampered with
• Compare files across different systems
• Verify successful file transfers