Corrupt a 7z Archive Online
Corrupt a 7z archive online for free. Destroys the signature header and packed stream index so 7-Zip cannot list or extract the contents.
- Sin subidas
- Sin límite de tamaño
- Sin registro
Corrompe tu archivo 7z
Ajustado para .7z, y funciona igual de bien con cualquier otro formato.
Por qué los archivos 7z son difíciles de corromper como es debido
7z keeps its metadata in a compressed header at the end of the file, with a small signature header at the start pointing to it. That indirection makes 7z particularly brittle once either end is damaged, and particularly reliable to break.
Qué destruye esta herramienta
- The signature header. The
7z\xBC\xAF\x27\x1Cmarker and the offset it carries to the end header are destroyed. - The end header. The compressed metadata block listing every file, folder and coder is overwritten.
- The packed stream index. The structure mapping compressed streams to their contents is destroyed.
- Compressed payload. Entropy is scattered through the LZMA streams so nothing is recoverable by carving.
Qué verás después
| Aplicación | Comportamiento |
|---|---|
| 7-Zip | "Cannot open the file as archive" or an unexpected end-of-data error. |
| PeaZip / Keka | Reports an unsupported or damaged archive. |
7z l | Fails with "Headers Error" and a non-zero exit code. |
| Windows Explorer | No preview and no extraction option beyond a generic error. |
Motivos habituales para hacer esto
- Testing an extraction service against malformed archives.
- Verifying a software distribution pipeline validates its packages.
- Simulating a partially downloaded archive for a retry-logic test.
- Checking that unpacking failures are reported rather than silently skipped.
Cómo corromper un archivo 7z
- Suelta tu archivo .7z en la caja de arriba, o haz clic para explorar.
- Deja el nivel en Standard salvo que quieras un daño parcial (Light) o necesites derrotar al software de recuperación (Heavy).
- Pulsa Corromper archivo. El procesamiento ocurre en tu dispositivo, así que termina casi al instante.
- Descarga el resultado. De forma predeterminada conserva el nombre de archivo y la longitud en bytes originales.
Preguntas frecuentes sobre 7z
Why is 7z easy to break?
Because it stores its file listing in a compressed header at the end and reaches it through an offset at the start. Damage either and the archive has no map of itself.
Does 7-Zip have a repair mode?
Not a real one. Unlike RAR it has no recovery records, so a damaged 7z is generally unrecoverable, which is why this tool is so effective on it.
Are encrypted 7z archives supported?
Yes. Encryption protects the contents, but the signature and end headers we target sit outside it.
Will the archive size change?
Not by default. The output is byte-for-byte the same length as the original.