Hash File Checker
Generate cryptographic hashes from uploaded files to verify integrity and detect changes.
📁 About File Hashing
File hashing generates a unique fingerprint for any file. Compare hashes to verify file integrity, detect changes, or confirm downloads completed successfully.
- Verify file integrity after transfer
- Detect unauthorized file modifications
- Confirm software downloads are authentic
- Digital forensics and evidence handling
- Duplicate file detection
File Hashing Applications
Integrity Verification
Download Verification: Confirm files downloaded correctly
Transfer Validation: Ensure files weren't corrupted during transfer
Backup Verification: Verify backup copies match originals
Security Uses
Tamper Detection: Identify unauthorized file modifications
Forensic Analysis: Create evidence fingerprints
Malware Detection: Compare against known good/bad hashes
Development Workflows
Build Verification: Ensure compiled artifacts are identical
Deployment Validation: Confirm correct files are deployed
Version Control: Track file changes over time
Supported Algorithms
| Algorithm | Output Length | Security Level | Recommended Use |
|---|---|---|---|
| SHA-256 | 64 chars | High | Production, Bitcoin |
| SHA-1 | 40 chars | Low | Legacy compatibility |
| MD5 | 32 chars | Broken | Non-security checksums |
Example Use Case
Verify a downloaded Bitcoin Core release
Download: bitcoin-24.0.1-x86_64-linux-gnu.tar.gz
Upload to hash checker
Compare with official SHA256SUMS file
Verify integrity before installation
Privacy Note: All hashing happens in your browser - files are never uploaded to servers.
