An ISO file is a disk image containing an exact copy of a CD, DVD, or Blu-ray disc. Named after the ISO 9660 file system standard, it preserves the complete disc structure.

File and directory names, sizes, dates, and the disc hierarchy. Volume label, publisher info, and creation date from the ISO metadata are also shown.

This viewer lists contents only. To extract files, mount the ISO (Windows 10+ supports native mounting) or use tools like 7-Zip.

No. All processing happens locally in your browser. Your ISO files never leave your device.

Standard ISO 9660, Joliet (long file names), and Rock Ridge (Unix extensions). Most software and game ISOs use these formats.

The viewer shows the El Torito boot catalog if present, including boot image information. The actual boot code isn't executed.

Browser memory limits apply. Large ISOs (several GB) may be slow. For DVD/Blu-ray sized images, desktop tools work better.

The viewer reads the primary volume descriptor. Multi-session discs show the most recent session's contents.

UDF (Universal Disc Format) used on DVDs requires separate parsing. This viewer focuses on ISO 9660 format.

Yes. Game ISOs using standard ISO 9660 format display their file structure. Proprietary disc formats may not parse correctly.