File MD5 Checksum
Calculate the MD5 hash of a file and verify its integrity
Upload File
Drag and drop file here
Supports any file type and size
Verify Checksum
What is File MD5?
MD5 (Message-Digest Algorithm 5) is a widely used hash algorithm that maps any file content to a fixed-length 128-bit (32 hexadecimal characters) digest. Any tiny change in file content produces a completely different MD5 value.
How to Use
- Click the upload area or drag a file onto the page
- Click the 'Calculate MD5' button
- Wait for the calculation to complete and view the MD5 value
- You can enter a known MD5 value in the verify section to compare
Common Use Cases
- Download verification: compare the downloaded file's MD5 with the official value
- File integrity check: detect if a file has been tampered with or corrupted during transfer
- Duplicate detection: quickly determine if two files have identical content via MD5
- Version management: confirm whether different file versions have content changes