Files with obb extension can usually be found as special, encrypted archives for Android APKs that contain additional content, graphics, map packs, multimedia files, and more. Common for all large and complex Android apps.

Detailed description

Software that open obb file

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OBB file extension - Android opaque binary blob archive

What is obb file? How to open obb files?

File extension obb is nowadays mainly related to Google Android mobile operating system for smartphones and tablets.

OBB is short for Opaque Binary Blob files (obb file), special archives created with the JOBB tool from Android SDK (now Android Studio).

This feature was introduced in Android 2.3 Gingerbread, allowing developers to create apps larger than 50 MB. This is because Google Play (previously Android Market) does not allow apk files bigger than this value.

In essence, an obb file is an encrypted archive containing data above the 50 MB limit, which in turn means more multimedia content and HD graphics for apps. It can also be shared across multiple apps, for example, navigation maps.

For games, developers can offer more complex, graphics-rich apps through the store.

Updated: November 7, 2023

The default software associated to open obb file:

Android Studio icon

Google Inc. logoAndroid Studio  Multiplatform software

Company or developer:
Google Inc.

Android Studio is the official IDE for Android application development, based on IntelliJ IDEA.

Google Android icon

Google Inc. logoGoogle Android  Google Android software

Company or developer:
Google Inc.

A popular operating system for smart phones and tablet computers developed by the Google. Android is based on the Linux kernel. Basic Android's applications are closely related to Google account and services such as Gmail, Calendar, Maps, YouTube, etc.

Applications for Android are written in Java source code but finally compiled for Android Dalvik virtual machine. In Android 4.4 and later is used new runtime environment called Android Runtime (ART) with JIT compiler.

New applications for Android are available on the Google Play a one of the basic applications in clean Android installation.

Google Android operating system versions:

  • Android 9 Pie
  • Android 8 O (Oreo)
  • Android 7 Nougat
  • Android 6 Marshmallow
  • Android 5 Lollipop
  • 4.4.x KitKat
  • 4.3.x Jellybean
  • 4.2.x Jellybean
  • 4.1.x Jellybean
  • 4.0.x Ice Cream Sandwich
  • 3.x.x Honeycomb
  • 2.3.x Gingerbread
  • 2.2 Froyo
  • 2.1 Eclair
  • 1.6 Donut
  • 1.5 Cupcake

Help how to open:

These *.obb files are used together with corresponding .apk installation packages to add additional content.

How to convert:

It seems that you cannot just convert obb files to anything. However, some SKD tools can be used to explore the files.

Find conversions from obb file:

obb to apk

obb to iso

obb to mp3

obb to rar

obb to txt

obb to zip

Find converter to obb file type:

apk to obb

rar to obb

txt to obb

zip to obb

List of software applications associated to the .obb file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open obb file, edit obb file, convert obb file, view obb file, play obb file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting obb files.

Programs that can create obb file - Android opaque binary blob archive

Programs supporting the exension obb on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for create obb file action.

Microsoft Windows:

Apple macOS / Mac OS X:


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