| Archived by Robert Jung | |
|---|---|
 | |
| Filename extension | .arj |
| Uniform Type Identifier (UTI) | public.archive.arj |
| Developed by | Robert K. Jung |
| Initial release | 1991; 35 years ago (1991) |
| Latest release | |
| Type of format | archive format |
| Open format? | Yes(patent expired) |
| Website | arj32.com |
ARJ (Archived byRobertJung) is a software tool designed in 1991 by Robert K. Jung for creating high-efficiencycompressed file archives. ARJ is currently on version 2.86 forMS-DOS and 3.31 forMicrosoft Windows and supports 16-bit, 32-bit and 64-bitIntel architectures.[1]
ARJ was one of many file compression utilities forMS-DOS andMicrosoft Windows during the early and mid-1990s. Parts of ARJ were covered byU.S. patent 5,140,321 (expired). ARJ is well-documented and includes over 150 command line switches.
ARJ archives can be unpacked with various tools other than the ARJ software. There exists a free software re-implementation of the tool. A number of software utilities, including7-Zip,Total Commander,Zipeg, andWinRAR can also unpack .arj files.[2] For macOS, standalone utilities, such as DeArj and UnArjMac, are available.
| Archiving only | |
|---|---|
| Compressing only | |
| Archiving and compressing | |
| Software packaging and distributing | |
| Document packaging and distributing | |
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