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File Extensions

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.

1
Indexed file extensions
Popular searches:
.DOCX .7Z .AUTOCAD (DWG, DXF) .PDF .TXT .OBJ (.OBJ)

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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.

Search by extension Enter extensions like PDF, APK, DAT, HEIC, ZIP, or DOCX.
Browse categories Filter by documents, images, videos, archives, data, and more.
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1 extensions
Image Letter: Q Clear all
.QRCODE

QR Code Image

A QR code (Quick Response code) is a type of matrix barcode (or two-dimensional barcode) first designed in 1994 for the automotive ind…

Image
.QRCODE

QR Code Image

A QR code (Quick Response code) is a type of matrix barcode (or two-dimensional barcode) first designed in 1994 for the automotive industry in Japan. A barcode…

Image

Frequently Asked Questions

Everything you need to know about file extensions

You can search by entering a file extension directly in the search bar or browse the directory by category or alphabetical index.

Each listing provides a definition of the file extension, common use cases, compatible software, supported platforms, and related or alternative formats.

The database is updated regularly to reflect new file extensions, changes in software compatibility, and evolving file format standards.