.arj ARJ archive
ARJ Extractor
ARJ was a popular DOS-era archiver. Old backups and floppy-disk sets often use it.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Working…
Keep this tab open — 7-Zip is running on your device, nothing is uploaded.
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ARJ at a glance
| Full name | ARJ archive |
|---|---|
| Type | Archive / compressed file |
| Compression | Lossless |
| Developed by | Robert Jung |
| Introduced | 1991 |
| Extension | .arj |
| Opens on iPhone | ✕ Needs an app (or this site) |
| Opens on Android | ✕ Needs an app (or this site) |
| Opens on Windows | ✕ Needs an app (or this site) |
| Opens on Mac | ✕ Needs an app (or this site) |
ARJ is best for DOS-era backups.
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Frequently asked questions
What is a .arj file?
ARJ was a popular DOS-era archiver. Old backups and floppy-disk sets often use it.
How do I open a ARJ file on my phone?
Open this page in Safari or Chrome, tap Choose archive and pick the .arj file. Its contents appear instantly and you can save any file.
Is it safe to extract ARJ files online here?
Yes. Extraction runs inside your browser and the archive is never uploaded.
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