ZIP Bomb Risk Checker
Inspect ZIP compression ratios locally and flag suspiciously expanded entries.
Local processingNo uploadNo accountNo tracking scripts
Choose a ZIP file to assessChecks declared compressed vs expanded sizes locally.
Risk signals will appear here. This is not antivirus scanning.
Tool capability
Clear support notes help avoid overpromising. This page is a private browser utility, not a full desktop archive suite.
Supported now
- ✓ Compression ratio signals
- ✓ Entry count review
- ✓ Local ZIP inspection
Not supported yet
- × Antivirus scanning
- × Full malicious-file detection
How this tool protects privacy
This page is designed to run inside your browser. The selected file is not uploaded by the static site. For sensitive archives, avoid tools that require a server upload before they explain how files are handled.
Limitations
Very large archives may be slow. Browser support differs for advanced compression methods. ZIP files using unsupported methods may still be inspected even when every entry cannot be extracted.