Corrupt a ZIP Archive Online
Corrupt a ZIP archive online for free. Destroys the central directory and local file headers so the archive cannot be opened or repaired.
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Beschädigen Sie Ihre ZIP-Datei
Abgestimmt auf .zip, .jar, .war, funktioniert aber ebenso mit jedem anderen Format.
Warum sich ZIP-Dateien nur schwer richtig beschädigen lassen
A ZIP archive is read from the back: the end-of-central-directory record points at an index, and the index points at each compressed entry. That design makes archives resilient, and WinRAR and 7-Zip can often rebuild a damaged index. Breaking one convincingly means taking out every layer of that structure at once.
Was dieses Werkzeug zerstört
- End of central directory. The EOCD record in the final 64 KB is destroyed, which is what makes a file stop being a ZIP.
- Central directory entries. Every
PK\x01\x02record is overwritten, so no listing can be produced. - Local file headers. Every
PK\x03\x04record is destroyed, defeating the "scan for local headers" mode that repair tools fall back to. - Compressed payload. Entropy scattered through the entries means even a byte-level carve yields nothing intact.
Was Sie danach sehen
| Anwendung | Verhalten |
|---|---|
| Windows Explorer | "The compressed (zipped) folder is invalid." |
| WinRAR / 7-Zip | "Cannot open file as archive." Repair produces an empty or unusable result. |
| macOS Archive Utility | "Unable to expand, error 1 - Operation not permitted." |
unzip on Linux | "End-of-central-directory signature not found." |
Häufige Gründe dafür
- Testing an upload endpoint that unpacks user-supplied archives.
- Verifying a CI pipeline fails loudly on a truncated artifact download.
- Simulating a corrupted backup so a restore procedure can be rehearsed.
- Checking that a malware scanner handles malformed archives without hanging.
So beschädigen Sie eine ZIP-Datei
- Ziehen Sie Ihre .zip-Datei in das Feld oben, oder klicken Sie zum Auswählen.
- Belassen Sie die Stufe auf Standard, sofern Sie nicht nur teilweisen Schaden wollen (Light) oder Wiederherstellungssoftware überwinden müssen (Heavy).
- Klicken Sie auf Datei beschädigen. Die Verarbeitung läuft auf Ihrem Gerät und ist daher fast sofort fertig.
- Laden Sie das Ergebnis herunter. Standardmäßig behält es den ursprünglichen Dateinamen und die Byte-Länge.
Häufige Fragen zu ZIP
Can WinRAR repair the archive?
No. Its repair mode scans for local file headers when the central directory is missing. Both are destroyed, so there is nothing to find.
Are the files inside affected too?
Yes. The compressed entries are scattered with entropy, so even carving the archive by hand will not yield intact files.
What about JAR and WAR files?
Both are ZIP containers and use the same profile. The result loads in no JVM and deploys to no container.
Does the archive keep its size?
Yes by default. It looks entirely normal until something tries to open it.