File Extension Library

.DB File Extension

  • Category: Database Files
  • Format: Binary

What is an .DB file?

.DB file extension has been classified as Database Files. The format of .DB file is Binary

.DB is Mobile Device Database File

A DB file is a database file used on mobile devices such as Android, iOS, and Windows Phone 7 mobile phones. It is often used to store contacts and SMS information but may store any type of device or application data. DB files are commonly stored in an SQLite database format but may also be locked or encrypted so the user cannot see the data directly.

DB files on mobile phones generally are not meant to be opened or edited manually, since they are support files that include information for the device or for an application.

One example of a DB file is sms.db, an iOS support file that stores the user's text messages (located in the /private/var/mobile/Library/SMS/ directory on the device). Another example of a DB file is consolidated.db, a database file on iOS devices that automatically tracks location information.

List of all softwares that can open the Mobile Device Database File
Apple iOS
File Type 2 Windows Thumbnail Cache
Developer by: Microsoft Category: Misc Files

Cache of thumbnail images that represent larger images in a Windows folder; stores small versions of images stored in a folder for quicker browsing; typically not seen unless the "Show invisible files" option is checked within the Windows view options.

Windows Thumbnail Cache files are named Thumbs.db by default. For more information about Windows Thumbs.db files, including how to prevent them from being created, follow these instructions.

Common DB Filenames

Thumbs.db - A hidden file created by Windows for storing thumbnails of images in a folder. It can be deleted, but Windows will remake the file.

List of all softwares that can open the Windows Thumbnail Cache
Microsoft Windows
File Type 3 Database File
Category: Database Files Format: Binary

A DB file is a generic database file that stores data in a structured format, typically with an arrangement of tables, table fields, field data types, and field values. It can be created by various database programs and exported into different formats, such as .CSV files. DB files may also be imported by multiple database programs and is used for gaming files as well.

List of all softwares that can open the Database File
Microsoft Access 2016
Synopsys Design Compiler Graphical
Aryson SQLite Database Recovery
File Type 4 QQ Account Database File
Developer by: Tencent Category: Data Files Format: Binary

Data file created by QQ, a Chinese online chatting program; may store the contact list or log of online chat sessions for a user account; used for storing application data locally and loading it through the program interface.

QQ DB files are typically saved to the \Program Files\Tencent\QQ\[Account number]\ directory.

List of all softwares that can open the QQ Account Database File
Tencent QQ
File Type 5 X-Ray Engine Database
Developer by: GSC Game World Category: Game Files

Database containing objects and other information used in games developed with the X-Ray Engine; used by S.T.A.L.K.E.R.: Clear Sky, S.T.A.L.K.E.R.: Shadow of Chernobyl, and other GSC Game World games; similar to .GCF files used by Valve-based games.

NOTE: X-Ray Engine Database files may also use the extensions ".db0," ".db1," ".db2," ".dba," ".dbb," ".dbc," etc.

File Type 6 Skype Chat History File
Developer by: Skype Category: Data Files Format: Text

Chat history file created and used by Skype, an application that allows you to make phone calls, messages, and video chats; contains your conversation history, which includes all the instant messages and call details that a user has sent to and received from contacts.

NOTE: You can transfer your Skype chat history to another device by replacing the main.db file on the new device with the main.db file that contains the chat history you want to keep.

Common DB Filenames

main.db - Name of the main file that contains chat history messages.

List of all softwares that can open the Skype Chat History File
Microsoft Skype
Microsoft Skype
Microsoft Skype

How to Open .DB file on different platforms

Open .DB File on Windows

  • Right-click a .DB
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .DB file and Select check box "Always use this app to open .DB files" Press "Ok"

Open .DB File on Mac

  • Right-click (or Ctrl + Left-click) the .DB file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .DB File on Linux

Right click on the .DB file, choose "Open with" and select a program from the list above

Open .DB File on iPhone

Select a file. If you don't see an application to open the .DB file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .DB File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .DB files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .DB files

  1. You need to update the application that you normally use to open .DB files. Only the latest version of the software supports the current .DB file format
  2. You need to check the .DB file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)