ZIP
ZIP archive files for upload testing
Test ZIP uploads, archive entries, compression methods, CRC integrity, nested archives, and decompression limits for backups and packages.
Verified . The local inspector recognizes the PK ZIP signature; Office package entries are verified during document checks, and entry lists are compared before extraction.
Identify ZIP files
- Magic signature
50 4B 03 04- Registered MIME
application/zip
ZIP stores compressed entries with local headers and a central directory at the end. Readers that trust local headers alone can miss entries, and streaming readers must handle data descriptors and the central directory separately.
Choosing ZIP
ZIP is supported by operating systems, build tools, and document pipelines, and Office formats are ZIP packages. The local generator does not produce ZIP archives, so validate ZIP uploads with the file inspector and the document package workflows.
Inspect archive entries before extracting anything.
Enforce entry-count, size, and compression-ratio limits to block decompression bombs.
Treat Office documents as ZIP packages and confirm their internal entries.
Common test cases
- Archive upload validation
- Office package inspection
- Decompression limit tests
Invalid and boundary cases
- Zip bombs with extreme compression ratios
- Entries with absolute or directory-traversal paths
- Truncated central directory with intact local entries
ZIP fixture matrix
This format is generated locally in the browser and does not receive a permanent SEO URL.
Open the local generator