AZ Tools

ZIP Inspector

File

Drag in a ZIP archive and instantly see the file tree, individual sizes, and total uncompressed size. Click any text file (source code, JSON, configs) for an inline preview, or download a single entry without extracting the whole archive. Powered by fflate, runs entirely in your browser — no upload, no temp files on disk.

How to use

  1. Drop a .zip file or click to choose one.
  2. Browse the entries; click any file name to preview.
  3. Use the per-row Download button to save a single file.

Frequently asked questions

Is the ZIP uploaded?
No. fflate unpacks the archive in memory inside your browser — the ZIP and its contents never leave your device.
Which ZIPs are supported?
Standard ZIP archives compressed with the Deflate algorithm (what most tools produce). Encrypted ZIPs and Zip64-only archives may not open.
Why are some files shown as 'binary'?
The preview decodes as UTF-8 text. If the first bytes contain many non-printable characters, the file is treated as binary and the preview is skipped — but you can still download it.
How big a ZIP can I open?
Limited by your browser's available memory. Hundreds of MB usually works; multi-gigabyte archives may be slow or fail to load.

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