Browse file extensions by category or letter. Learn what each file type is used for and find software that can open, view, edit, or convert it.
Use this directory to look up file formats, understand what files are used for, and find compatible applications for Windows, macOS, Linux, mobile, and online tools.
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AZW3, also known as Kindle Format 8 (KF8), is a refined version of the AZW file format used by Amazon Kindle e-readers. It's essential…
A .deb file is a software package format used primarily in Debian-based Linux distributions, such as Ubuntu, Linux Mint, and Debian it…
A JAR (Java Archive) file is a package file format typically used to aggregate many Java class files and associated metadata and resou…
The Web Open Font Format (WOFF) is a font format for use in web pages. It was developed to provide lossless compression of fonts, redu…
The .sab file extension is associated with SABnzbd, a popular open-source binary newsreader. These files are configuration files that…
The CDR file extension is associated with CorelDRAW, a vector graphics editor developed by Corel Corporation. CDR files are proprietar…
The PSD file format is the native file format for Adobe Photoshop. It's a proprietary layered image file format that allows users to s…
A TSV (Tab-Separated Values) file is a simple text-based format for storing tabular data, such as spreadsheet or database information…
The MKV file format is a flexible, open standard video file format, a container format that can hold an unlimited number of video, aud…
The ORF file extension represents the raw image format used by Olympus digital cameras. Raw image formats, unlike JPEGs, contain minim…
A VTT file, short for Video Text Tracks, is a text-based file format used to display timed text tracks (such as subtitles or captions)…
The Audio Interchange File Format (AIFF) is an audio file format standard used for storing sound data for personal computers and other…
A .pyd file is a dynamic link library (DLL) written in Python. It's essentially a compiled Python extension module that can be importe…
A CRX file is a package file format used by Chromium-based browsers like Google Chrome, Microsoft Edge, and others to distribute exten…
An NRG file is a proprietary disc image format created by Nero AG, primarily used with their Nero Burning ROM software. It's essential…
The SKP file extension is used for 3D models created with SketchUp, a popular 3D modeling software developed by Trimble Inc. These fil…
RPM (originally Red Hat Package Manager, now a recursive acronym) is a package management system. RPM files are used to distribute sof…
The IGES (Initial Graphics Exchange Specification) file format is a vendor-neutral file format that allows the digital exchange of inf…
A .tar.xz file is a compressed archive, combining the functionalities of two distinct tools: `tar` and `xz`. The `tar` (Tape Archive)…
WOFF2 (Web Open Font Format 2.0) is a font format for use in web pages. It is a successor to WOFF and offers improved compression, res…
The DGN file format is a CAD (Computer-Aided Design) file format primarily associated with Bentley Systems' MicroStation and other CAD…
GeoJSON is a widely used open standard geospatial data interchange format that represents geographic features with their non-spatial a…
An IPSW file is a proprietary archive format used by Apple to distribute firmware updates for iOS, iPadOS, tvOS, and watchOS devices…
A .crdownload file is a temporary file extension used by the Google Chrome web browser (and Chromium-based browsers like Microsoft Edg…
AZW3, also known as Kindle Format 8 (KF8), is a refined version of the AZW file format used by Amazon Kindle e-readers. It's essentially a compiled HTML format…
A .deb file is a software package format used primarily in Debian-based Linux distributions, such as Ubuntu, Linux Mint, and Debian itself. It's essentially an…
A JAR (Java Archive) file is a package file format typically used to aggregate many Java class files and associated metadata and resources (text, images, etc.)…
The Web Open Font Format (WOFF) is a font format for use in web pages. It was developed to provide lossless compression of fonts, reducing file size and improv…
The .sab file extension is associated with SABnzbd, a popular open-source binary newsreader. These files are configuration files that store settings and prefer…
The CDR file extension is associated with CorelDRAW, a vector graphics editor developed by Corel Corporation. CDR files are proprietary vector image files that…
The PSD file format is the native file format for Adobe Photoshop. It's a proprietary layered image file format that allows users to save images with multiple…
A TSV (Tab-Separated Values) file is a simple text-based format for storing tabular data, such as spreadsheet or database information. Each line in the file re…
The MKV file format is a flexible, open standard video file format, a container format that can hold an unlimited number of video, audio, picture, or subtitle…
The ORF file extension represents the raw image format used by Olympus digital cameras. Raw image formats, unlike JPEGs, contain minimally processed data direc…
A VTT file, short for Video Text Tracks, is a text-based file format used to display timed text tracks (such as subtitles or captions) in HTML5 video players…
The Audio Interchange File Format (AIFF) is an audio file format standard used for storing sound data for personal computers and other electronic audio devices…
A .pyd file is a dynamic link library (DLL) written in Python. It's essentially a compiled Python extension module that can be imported and used within Python…
A CRX file is a package file format used by Chromium-based browsers like Google Chrome, Microsoft Edge, and others to distribute extensions, themes, and apps…
An NRG file is a proprietary disc image format created by Nero AG, primarily used with their Nero Burning ROM software. It's essentially a complete copy of a C…
The SKP file extension is used for 3D models created with SketchUp, a popular 3D modeling software developed by Trimble Inc. These files contain all the inform…
RPM (originally Red Hat Package Manager, now a recursive acronym) is a package management system. RPM files are used to distribute software on Linux and other…
The IGES (Initial Graphics Exchange Specification) file format is a vendor-neutral file format that allows the digital exchange of information among Computer-A…
A .tar.xz file is a compressed archive, combining the functionalities of two distinct tools: `tar` and `xz`. The `tar` (Tape Archive) utility is used to bundle…
WOFF2 (Web Open Font Format 2.0) is a font format for use in web pages. It is a successor to WOFF and offers improved compression, resulting in smaller file si…
The DGN file format is a CAD (Computer-Aided Design) file format primarily associated with Bentley Systems' MicroStation and other CAD applications. It is used…
GeoJSON is a widely used open standard geospatial data interchange format that represents geographic features with their non-spatial attributes. It's based on…
An IPSW file is a proprietary archive format used by Apple to distribute firmware updates for iOS, iPadOS, tvOS, and watchOS devices. It contains all the neces…
A .crdownload file is a temporary file extension used by the Google Chrome web browser (and Chromium-based browsers like Microsoft Edge, Brave, and Opera) to i…
Everything you need to know about file extensions