Online .ISO File Extractor
(No Size Limits)
Open and unpack compressed folders instantly in any web browser. Perfect for Chromebooks, school laptops, and managed devices where software installation is locked.
About Decompression of ISO
An .ISO file is a sector-by-sector copy of an optical disc (like a CD or DVD). It bundles all data on the disc into a single file structure, frequently used for system installers and database distributions.
Avoid mounting virtual drives or using heavy local extraction software. Drop your ISO files on unpk.app to extract internal files securely in your browser.
ISO FAQ
Everything you need to know about how unpk.app processes ISO locally.
What is an ISO file?
An ISO file is a sector-by-sector digital copy of an optical disc (CD, DVD, or Blu-ray). It bundles every file and folder from that disc into a single archive, commonly used for OS installers, game discs, and software distributions.
Can I open an ISO file without burning it to a disc?
Yes. With unpk.app you can extract individual files from any ISO directly in your browser — no disc, no burning software, no virtual drive mounting required. Just drop the ISO and browse its contents instantly.
How do I open an ISO file on a Chromebook?
ChromeOS can mount ISO files natively in newer versions — try double-clicking it in the Files app. If that does not work, drop the ISO into unpk.app in Chrome to extract files directly without any app install.
How do I extract specific files from an ISO without extracting everything?
With unpk.app, you can browse all contents of an ISO file and download only the specific files you need. You do not have to extract the entire disc image — just click on any individual file inside to save it.
Is there a file size limit for ISO files?
No. unpk.app uses streaming extraction, so even very large ISO files (such as full operating system installers that are 4GB+) can be opened without hitting any size limit and without crashing your browser.