Select Hash Algorithm
Choose the cryptographic hash algorithm for verification
Note: MD5 and SHA-1 are considered cryptographically weak. Use SHA-256 or SHA-512 for better security.
Secure • Client-Side • No Server Upload
File Integrity Verifier
Verify file integrity by comparing cryptographic hashes. Detect tampering, corruption, or unauthorized modifications. All processing happens securely in your browser.
Upload File
Select a file to calculate its hash
Click or drag file to upload
Any file type supported • No size limit • Processed locally
Verify Integrity
Enter the expected hash to verify file integrity
How File Verification Works
1. Hash Calculation: A cryptographic hash function generates a unique fingerprint of your file.
2. Comparison: Compare the calculated hash with the expected hash from a trusted source.
3. Verification: If hashes match, the file is authentic and unmodified. If they don't match, the file may be corrupted or tampered with.
Common Use Cases
Software Downloads
Verify downloaded software hasn't been tampered with before installation
Data Backups
Ensure backup files haven't been corrupted during storage or transfer
File Transfers
Confirm files received match the original after network transfer
Security Audits
Detect unauthorized modifications to sensitive files or documents
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