文件哈希

什么是文件哈希？

File hash generates checksums (MD5, SHA-256, etc.) to verify file integrity and identity. Detect tampering or duplicates.

Hashing is computed locally. Files never leave your device.

何时使用？

• Integrity check: Verify downloads match originals
• Deduplication: Find duplicate files by hash
• Security: Confirm file authenticity
• Backup verification: Ensure backups are correct

优点

• Multiple algorithms: MD5, SHA-1, SHA-256, etc.
• Fast: Quick local computation
• Privacy: No upload
• Batch: Hash multiple files

常见问题

1. Upload: Add file(s) to hash
2. Select algorithm: Choose MD5, SHA-256, etc.
3. Compute: Generate hash values
4. Copy: Use hash for verification

提示: Use SHA-256 when security matters.