.JPG File Extension

JPEG Image

JPEG is a popular image format. Early Windows versions limited extensions to 3 characters. So JPEG images used .jpg instead of .jpeg. As Windows grew popular, .jpg became the default JPEG extension. ...

General Information

Title JPG File Extension
Extension .jpg
Full Form JPEG Image
File Type Image File
Developer Joint Photographic Experts Group
MIME Type image/jpeg

File Function

Primary Function Store images
Additional Functions Web graphics, photography
Features Lossy compression, widely used

File Characteristics

Quality High with low compression
Supports Layers No
Supports Transparency No
Editable Yes

Use Cases

Photography Yes
Web Images Yes
Printing Yes

Security and Practices

Security Risks Steganography, malware
Best Practices Regular scanning, metadata removal

Historical/Version Information

Initial Release 1992
Standardization ISO/IEC 10918-1

Associated Types

Similar Extensions .jpeg, .jpe, .jif, .jfif, .jfi

Software Compatibility

Software Usage Policy OS Compatibility
Adobe Photoshop Subscription Windows, Mac
GIMP Free Windows, Mac, Linux
Microsoft Paint Free Windows