Files with thumbdata3 with various numbers in filename extension are generally thumbnail databases found on Android devices.

Detailed description

Software that open thumbdata3--number file

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THUMBDATA3--NUMBER file extension - Android MediaProvider thumbnail database

What is thumbdata3--number file? How to open thumbdata3--number files?

File type specification:

Temporary file type icon Temporary file type

File extension thumbdata3--[various numbers] is associated with Google Android OS.

The thumbdata3 files contain generated thumbnail database of pictures, found in DCIM folder mostly on SD card of Android phone. These files can be pretty large, but if you need you can freely delete them. If needed the app will recreate them again.

The numbers behind the file extension are probably generated randomly depending on the device or something else.

Example of these files includes:


Updated: August 12, 2021

The default software associated to open thumbdata3--number file:

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

Related articles:

More information about Android THUMBDATA files

Help how to open:

These files are not meant to be opened directly and only server for cache purpose. You can safely delete them if needed.

How to convert:

Conversion to other formats is not possible.

List of software applications associated to the .thumbdata3--number 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 thumbdata3--number file, edit thumbdata3--number file, convert thumbdata3--number file, view thumbdata3--number file, play thumbdata3--number 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 thumbdata3--number files.

Programs that can create thumbdata3--number file - Android MediaProvider thumbnail database

Programs supporting the exension thumbdata3--number on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Google Android for create thumbdata3--number file action.

Google Android:

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