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.
- Sem envio
- Sem limite de tamanho
- Sem registo
Corrompa o seu ficheiro ZIP
Afinado para .zip, .jar, .war, e funciona igualmente bem com qualquer outro formato.
Porque os ficheiros ZIP são difíceis de corromper como deve ser
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.
O que esta ferramenta destrói
- 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.
O que vai ver a seguir
| Aplicação | Comportamento |
|---|---|
| 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." |
Motivos comuns para fazer isto
- 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.
Como corromper um ficheiro ZIP
- Largue o seu ficheiro .zip na caixa acima, ou clique para procurar.
- Deixe o nível em Standard, a menos que queira dano parcial (Light) ou precise de derrotar software de recuperação (Heavy).
- Prima Corromper ficheiro. O processamento decorre no seu dispositivo, por isso termina quase de imediato.
- Transfira o resultado. Por predefinição mantém o nome de ficheiro e o comprimento em bytes originais.
Perguntas frequentes sobre 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.