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OBB ISO
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Convert OBB to ISO

Can you convert OBB to ISO?
Verified by Adam B.· reviewed by FE Editorial ·updated Jun 18, 2026
QUICK ANSWER
Is it possible to convert OBB to ISO?
No - not a direct conversion.

There is no scenario where Android game expansion data would need to become a disc image. If you want to install the game, you need both the APK and the OBB placed in the correct folder on the device.

No direct path
Also to ISO: BIN · MDX · FCD

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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Why convert OBB to ISO?

An OBB (APK Expansion File) is a blob of game assets - textures, audio, level files - that Android reads from /Android/obb/<package>/ at runtime. An .iso is a sector-by-sector copy of an optical disc with a complete filesystem (ISO 9660 or UDF). The two have nothing in common in purpose or structure, and no source material in an OBB could produce a disc image.

How to convert OBB to ISO

Split APKs Installer (SAI) FREE

If you received an .xapk or .apkm bundle, SAI installs the APK and places the .obb in the correct location automatically - no conversion needed.

About these formats

.OBB Android Opaque Binary Blob (APK Expansion File)

An OBB file is the extra data package for an Android game or app - large assets like graphics, audio, and levels that don't fit in the APK. You don't open it; you place it in Android/obb//…

Open .OBB details →
.ISO ISO disc image (ISO 9660 / UDF)

An ISO file is a sector-by-sector copy of an optical disc (CD, DVD, or Blu-ray) stored as a single file. On Windows 8 and later, right-click it and choose Mount - no software needed. To…

Open .ISO details →

Quality & what to watch

  • To install a game that came with an OBB file: install the APK, then copy the .obb to /Android/obb/<package.name>/ with its original filename intact.
  • Many OBBs are ZIP archives internally and can be opened with 7-Zip (Windows) or ZArchiver (Android) to inspect assets - but this is extraction, not conversion to ISO.
  • Any online tool claiming to convert OBB to ISO does not work; the conversion is undefined.

Frequently asked questions

Can any converter turn OBB into ISO?
No. No tool performs this conversion because the formats are unrelated and there is no meaningful mapping between them.
Is an OBB similar to an ISO in any way?
Both are binary files, but that is the only resemblance. An ISO has a standard disc filesystem; an OBB is a developer-defined blob, often a ZIP or an engine-specific container.
Why does my game need an OBB file at all?
Google introduced APK Expansion Files in 2012 because the Play Store capped APKs at 50 MB. The OBB mechanism lets a game ship up to 2 GB of extra assets separately.