Tool to read hidden comments in Zip files, global comment or for each file, with CP437 or Unicode encoding
Zip Comments - dCode
Tag(s) : Informatics
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Zip Comments
Zip Comment Reader
Answers to Questions (FAQ)
What is a zip comment? (Definition)
A Zip file is used to archive various files by compression. Each file contained in the ZIP archive can be accompanied by a comment (text zone). Also the entire Zip file can contain a global comment.
How to extract the password of a Zip file?
How to decode a comment?
The comment can be stored with any encoding (no standard/standard), usually ASCII or Unicode.
Example: The comment 7A 69 70 (hexadecimal format) is encoded in ASCII and translates into the 3 letters: zip
dCode has a cipher detector that can help recognize different encodings.
NB: ZIP files are often encoded (file names, folder names, comments) with code page 437 (CP437) which was widespread before the advent of Unicode and UTF-8.
How does Zip comments reader work?
The tool checks if a global comment exists, and then generates the list of all the files before checking, one after the other, if it contains a comment and tries to decode it.
dCode uses the library of @gildas-lormeau available here (BSD-3 License)
Source code
dCode retains ownership of the "Zip Comments" source code. Except explicit open source licence (indicated Creative Commons / free), the "Zip Comments" algorithm, the applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or the "Zip Comments" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and all data download, script, or API access for "Zip Comments" are not public, same for offline use on PC, mobile, tablet, iPhone or Android app!
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Cite as source (bibliography):
Zip Comments on dCode.fr [online website], retrieved on 2024-12-19,
