.JAR - File Extension for Java Archive Files
File extension JAR is used for Java archive files. A JAR sample file is provided. Free software for creating and opening JAR files are listed.
File Extension: .JAR
MIME Type: application/java-archive
File Content: Compressed files
What is JAR? JAR is a short name for Java ARchive, a file format used to archiving Java class files and associated metadata. JAR was developed by Sun Microsystems by extending the ZIP file format.
Some technical notes on JAR file format:
JAR is the file extension for JAR files.
JAR files are binary files. Here are the first 64 bytes of a sample JAR file dumped in HEX values:
50 4b 03 04 14 00 08 00 08 00 90 b8 24 38 00 00 PK...........8.. 00 00 00 00 00 00 00 00 00 00 0d 00 04 00 57 65 ..............We 6c 63 6f 6d 65 2e 63 6c 61 73 73 fe ca 00 00 6d lcome.class....m 50 c1 4a c3 40 10 7d d3 24 4d 1b a3 ad ad ad 56 P.J......M.....V
Notice that JAR files share the same magic number, "PK", with ZIP files.
JAR sample file: Click sample.jar to download.
JAR files can be created and unpacked by many free compression software:
2012-07-02, 3330👍, 0💬
File extension AVI is used for multimedia files in Audio Video Interleave format. An AVI sample file...
What is ODG? ODG, short name for OpenDocument Graphics, is used as the file extension for OpenDocume...
_file_icon.jpg" align="left"/> What is SEP? SEP, short name for Printer Separator Page, is used as t...
What is PFB? PFB, short name for Printer Font Binary, is used as the file extension for Printer Font...
File extension CLASS is used for Java compiled class files. A CLASS sample file is provided. Free JV...