What This Tool Does
This tool reports the key facts about a ZIP file: how many files and folders it contains, the total stored and unpacked sizes, and the compression relationship between the archive and its content.
It is the fast summary you want before recompressing, splitting, repairing or validating a ZIP further.
What the Report Shows
- File and folder counts in the ZIP.
- Total compressed (stored) and uncompressed sizes.
- Number of encrypted entries, if any.
- An estimation of how much larger the content is than the ZIP.
Step by Step
- 1
Upload the ZIP.
- 2
Click Get ZIP Info.
- 3
Read the summary.
How It Works
The ZIP directory is read with a listing engine that totals entries and sizes. All numbers come from the real archive data, and nothing is extracted in the process.
Troubleshooting
- Corrupt ZIPs may fail the listing; use the repair tool first.
- Encrypted entries are counted but their contents are not read.
- For the full entry tree use Zip Structure Viewer.
Frequently Asked Questions
What is in a ZIP info report?
Entry counts, total compressed and uncompressed sizes, encryption count and a size ratio.
Is this measured or guessed?
Measured directly from the archive directory data.
Does it extract anything?
No, nothing is extracted or executed.
Can I inspect entries individually?
Use List ZIP Contents or Zip Structure Viewer for that.
Is a huge ratio a problem?
Not necessarily, but a surprising ratio is worth an integrity check.