Data and files

ZIP inspector

Inspect a ZIP directory and declared sizes without extracting its contents.

Classic ZIP up to 10 MiB, 500 entries, 1,024 bytes per name and 200 MiB of declared uncompressed size. Stored/Deflate only; ASCII or UTF-8 names. Encryption, ZIP64, multipart and self-extracting archives are not supported.

Only headers and the directory are inspected: content is not extracted, executed, decompressed or uploaded. CRC and sizes are declared, not verified. This is not an antivirus or a guarantee of archive integrity.

Input

What this tool does

Read a classic ZIP directory and headers, showing names and declared sizes, methods and CRCs without extraction.

How to use it

  1. Select a ZIP file and run inspection.
  2. Page through entries and review warnings.
  3. Download the JSON report if you need to keep the directory listing.

Verifiable example

Input
A stored ZIP containing one three-byte file.
Expected result
The entry declares compressed and uncompressed sizes of 3; its contents are not verified.

Limitations to review

  • Up to 10 MiB, 500 entries, 1,024 bytes per name and 200 MiB declared uncompressed. Stored/Deflate, with ASCII or UTF-8 names.
  • ZIP64, encrypted, multipart and self-extracting archives are rejected. No CRC, actual integrity or malware validation; files are never extracted.

Read the full tutorial

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