.JAR File Extension

A Java Archive file is called a JAR file. JAR files are archives compressed in the ZIP package. They are used by the Java Runtime Environment (JRE). JAR packages contain metadata files and resource fi...

General Information

File Function

Title JAR File Function
Primary Function Software distribution
Additional Functions Archiving, Compression
Features Portable, Executable

File Characteristics

Title File Characteristics
Quality Binary archive
Supports Layers No
Supports Transparency No
Editable With tools

Use Cases

Title Use Cases
Desktop Applications Yes
Web Servers Yes
Enterprise Applications Yes

Security and Practices

Title Security and Practices
Security Risks Executable code
Best Practices Signing, Secure coding

Historical/Version Information

Title Historical/Version Information
Initial Release 1995
Latest Version Depends on JDK

Associated Types

Title Associated Types
Java Class Files .class
Java Source Files .java
Web Archives .war
Enterprise Archives .ear

Software Compatibility

Software Usage Policy OS Compatibility
Java Runtime Environment (JRE) Free Windows, Mac, Linux
WinRAR Free Trial Windows, Mac, Linux
7-Zip Free Windows, Linux