Corrupt an ISO File Online
Corrupt an ISO disc image online for free. Destroys the 32 KB system area and volume descriptors so the image cannot be mounted or burned.
- Nessun caricamento
- Nessun limite di dimensione
- Nessuna registrazione
Corrompi il tuo file ISO
Calibrato per .iso, .img, .cue, e funziona altrettanto bene con qualsiasi altro formato.
Perché i file ISO sono difficili da corrompere per bene
An ISO 9660 image begins with a 32 KB system area, followed by volume descriptors at fixed offsets and path tables that map the directory tree. Because those offsets are fixed rather than pointer-driven, tools can often recover an image with scattered damage, the structures are exactly where they are expected to be.
Cosa distrugge questo strumento
- The system area. The first 32 KB, which holds boot code on bootable images, is overwritten in full.
- Volume descriptors. The
CD001primary volume descriptor at offset 0x8001 and its terminator are destroyed. - UDF descriptors. The
BEA01,NSR02andNSR03markers used by UDF images are targeted too. - Path tables and payload. The directory structure is destroyed and entropy is scattered through the image body.
Cosa vedrai dopo
| Applicazione | Comportamento |
|---|---|
| Windows mount | "Sorry, there was a problem mounting the file." |
| macOS DiskImageMounter | "No mountable file systems." |
| Rufus / balenaEtcher | Rejects the image as invalid before writing. |
mount -o loop | "wrong fs type, bad option, bad superblock." |
Motivi comuni per farlo
- Testing that an OS deployment tool verifies images before writing.
- Verifying a download validates its checksum rather than trusting the file.
- Simulating a bad burn or interrupted download for a support runbook.
- Checking that a virtualisation platform reports a bad ISO clearly.
Come corrompere un file ISO
- Trascina il tuo file .iso nel riquadro qui sopra, oppure fai clic per sfogliare.
- Lascia il livello su Standard, a meno che tu non voglia un danno parziale (Light) o debba sconfiggere un software di recupero (Heavy).
- Premi Corrompi file. L'elaborazione avviene sul tuo dispositivo, quindi termina quasi subito.
- Scarica il risultato. Per impostazione predefinita mantiene il nome file e la lunghezza in byte originali.
Domande frequenti su ISO
Why does the header region need to be so large?
Because ISO 9660 reserves the first 32 KB as a system area and only puts the primary volume descriptor at offset 0x8001. Anything smaller would leave the descriptor untouched.
Will a bootable ISO still boot?
No. The boot code lives in the system area, which is overwritten in full.
Does it work on hybrid ISO/UDF images?
Yes. Both the ISO 9660 and UDF descriptor sets are targeted, so hybrid images break completely.
Can a large ISO be handled in the browser?
Yes. Files are processed in 8 MB slices, so a multi-gigabyte image works without exhausting memory.