DB

File extension db is used by various applications for database. Database is a structured collection of records or data that is stored in a computer system.

The structure is achieved by organizing the data according to a database model.

The model in most common use today is the relational model. Other models such as the hierarchical model and the network model use a more explicit representation of relationships.

The db file extension is also used for one of default files from Apple Safari web browsing application for macOS (OS X) and Windows operating system.

This particular type of db file stores database with cache used by Safari browser.

The db file extension is also related to ArcView, part of Esri's ArcGIS Desktop a GIS (geographic information system) used to work with maps and geographic information.

This type of db files contain attribute data and are considered as databases, although different that common dBase databases.

The db file extension is associated with Atari Jaguar a video gaming console released in 1993 and discontinued in 1996.

The db file contains script for Atari Jaguar debugger that was used for programming software for Jaguar.

The db file extension is associated with Paradox, a relational database management system sold by Corel Corporation (previously Ansa Software and Borland). It is part of some editions of Corel WordPerfect Office suite.

The db files contain databases created by Corel Paradox.

The db file extension seems to also have been used for some sort of configuration file from dBase, a database management system (DBMS) for various platforms and operating systems, developed by dataBased Intelligence, Inc.

These do not seem to be actual databases, just configuration files for them.

The db file extension is associated with the DIGIBooster, a music tracker and audio composer for Amiga computers developed by the Commodore.

The db file stores module (audio data) composed in the DIGIBooster.

The db file extension is associated with the Enpass, a password management tool for Microsoft Windows, Mac OS X (macOS), Linux iOS, Android and platforms.

The db file stores encrypted database with passwords, logins and other information.

The db file extension was also used for the database format used by MS Works, a discontinued office suite produced by Microsoft.

This type of .db file is also database saved in the program.

The db file extension is associated with the Netscape Navigator, an Internet suite and some other apps developed by Mozilla Foundation.

The db file is used to store client certificates and related data.

The db file extension is associated with Novell GroupWise.

GroupWise is a cross-platform collaborative software product from Novell, Inc. offering e-mail, calendaring, instant messaging and document management. File contains address book database.

The db file extension is very often used for database file formats.

Novell is now owned by Micro Focus company.

The db file extension is associated with the Psion Series 3 database file format.

Psion PLC is a consumer hardware company which developed the Psion Organiser as well as a whole range of more advanced, clamshell-design Personal Digital Assistants.

The db file extension is associated with the S.T.A.L.K.E.R., a 3D sc-fi first person shooter and adventure computer game for Microsoft Windows operating system.

The db file stores database used by S.T.A.L.K.E.R. X-Ray gaming engine.

The db file extension is also used by SmartWare for one of its default file types. Since its establishment in 1983, SmartWare has been delivering high quality reliable IT solutions and services to a wide range of businesses and organizations.

The .db file from SmartWare contains some sort of database.

The db file extension is also related to Synopsys Design Compiler and used for its default data file type. Design Compiler is some sort of microprocessor design and analysis software.

The db file extension is also used for various data files used by Synopsys Design Compiler, dbVista, Smartware, XTreeGold and other older programs, mostly for MS-DOS operating system and others.

The db file extension is also used by WhatsApp Messenger for Blackberry and for Windows Phone, an instant messaging client used as a substitute for SMS and MMS messages.

This type of db file stores database with incoming and outgoing messages.

The message database file is called:

messagestore.db on BlackBerry

messages.db on Windows Phone

on BB is stored in:

Media Card → databases → WhatsApp

on Windows Phone is stored in:

SD Card → WhatsApp/WinPhoneBackup

The db file extension is also commonly found as various thumbnail databases found across all kind of versions of Windows operating system under different file name.

Thumbnail database is used to store thumbnail images for faster view of images in directory, because thumbnails are smaller and can be loaded faster then original images.

You can find them as following files:

• thumbs.db
• ehthumbs.db
• ehthumbs_vista.db
• image.db
• video.db
• TVThumb.db
• musicThumbs.db

Added in Windows Vista:

Thumbs.db file has been replaced by a number of "thumbcache_*.db" which are now located within a user's profile

• thumbcache_32.db
• thumbcache_96.db
• thumbcache_256.db
• thumbcache_1024.db
• thumbcache_sr.db
• thumbcache_idx.db files 

Added in Windows 8:

• thumbcache_16.db
• thumbcache_48.db
• thumbcache_wide.db
• thumbcache_exif.db
• iconcache_16.db
• iconcache_32.db
• iconcache_48.db
• iconcache_96.db
• iconcache_256.db
• iconcache_1024.db
• iconcache_sr.db
• iconcache_wide.db
• iconcache_exif.db
• iconcache_idx.db

Added in Windows 10:

• iconcache_1280.db
• iconcache_16.db
• iconcache_1920.db
• iconcache_256.db
• iconcache_2560.db
• iconcache_32.db
• iconcache_48.db
• iconcache_768.db
• iconcache_96.db
• iconcache_custom_stream.db
• iconcache_exif.db
• iconcache_idx.db
• iconcache_sr.db
• iconcache_wide.db
• iconcache_wide_alternate.db
• thumbcache_1280.db
• thumbcache_16.db
• thumbcache_1920.db
• thumbcache_256.db
• thumbcache_2560.db
• thumbcache_32.db
• thumbcache_48.db
• thumbcache_768.db
• thumbcache_96.db
• thumbcache_custom_stream.db
• thumbcache_exif.db
• thumbcache_idx.db
• thumbcache_sr.db
• thumbcache_wide.db
• thumbcache_wide_alternate.db